The 'cgrp' is set but not used in commit <76f969e8948d8>
("cgroup: cgroup v2 freezer").
Remove it to avoid [-Wunused-but-set-variable] warning.
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Shaokun Zhang <zhangshaokun@hisilicon.com>
Acked-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
(cherry picked from commit 533307dc20a9e84a0687d4ca24aeb669516c0243)
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
Change-Id: I6221a975c04f06249a4f8d693852776ae08a8d8e
If a new child cgroup is created in the frozen cgroup hierarchy
(one or more of ancestor cgroups is frozen), the CGRP_FREEZE cgroup
flag should be set. Otherwise if a process will be attached to the
child cgroup, it won't become frozen.
The problem can be reproduced with the test_cgfreezer_mkdir test.
This is the output before this patch:
~/test_freezer
ok 1 test_cgfreezer_simple
ok 2 test_cgfreezer_tree
ok 3 test_cgfreezer_forkbomb
Cgroup /sys/fs/cgroup/cg_test_mkdir_A/cg_test_mkdir_B isn't frozen
not ok 4 test_cgfreezer_mkdir
ok 5 test_cgfreezer_rmdir
ok 6 test_cgfreezer_migrate
ok 7 test_cgfreezer_ptrace
ok 8 test_cgfreezer_stopped
ok 9 test_cgfreezer_ptraced
ok 10 test_cgfreezer_vfork
And with this patch:
~/test_freezer
ok 1 test_cgfreezer_simple
ok 2 test_cgfreezer_tree
ok 3 test_cgfreezer_forkbomb
ok 4 test_cgfreezer_mkdir
ok 5 test_cgfreezer_rmdir
ok 6 test_cgfreezer_migrate
ok 7 test_cgfreezer_ptrace
ok 8 test_cgfreezer_stopped
ok 9 test_cgfreezer_ptraced
ok 10 test_cgfreezer_vfork
Reported-by: Mark Crossen <mcrossen@fb.com>
Signed-off-by: Roman Gushchin <guro@fb.com>
Fixes: 76f969e8948d ("cgroup: cgroup v2 freezer")
Cc: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org # v5.2+
Signed-off-by: Tejun Heo <tj@kernel.org>
Change-Id: I6ba7b8dec5600e78bb7448f03fd97a9b43838fa0
(cherry picked from commit 97a61369830ab085df5aed0ff9256f35b07d425a)
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
Cgroup v1 implements the freezer controller, which provides an ability
to stop the workload in a cgroup and temporarily free up some
resources (cpu, io, network bandwidth and, potentially, memory)
for some other tasks. Cgroup v2 lacks this functionality.
This patch implements freezer for cgroup v2.
Cgroup v2 freezer tries to put tasks into a state similar to jobctl
stop. This means that tasks can be killed, ptraced (using
PTRACE_SEIZE*), and interrupted. It is possible to attach to
a frozen task, get some information (e.g. read registers) and detach.
It's also possible to migrate a frozen tasks to another cgroup.
This differs cgroup v2 freezer from cgroup v1 freezer, which mostly
tried to imitate the system-wide freezer. However uninterruptible
sleep is fine when all tasks are going to be frozen (hibernation case),
it's not the acceptable state for some subset of the system.
Cgroup v2 freezer is not supporting freezing kthreads.
If a non-root cgroup contains kthread, the cgroup still can be frozen,
but the kthread will remain running, the cgroup will be shown
as non-frozen, and the notification will not be delivered.
* PTRACE_ATTACH is not working because non-fatal signal delivery
is blocked in frozen state.
There are some interface differences between cgroup v1 and cgroup v2
freezer too, which are required to conform the cgroup v2 interface
design principles:
1) There is no separate controller, which has to be turned on:
the functionality is always available and is represented by
cgroup.freeze and cgroup.events cgroup control files.
2) The desired state is defined by the cgroup.freeze control file.
Any hierarchical configuration is allowed.
3) The interface is asynchronous. The actual state is available
using cgroup.events control file ("frozen" field). There are no
dedicated transitional states.
4) It's allowed to make any changes with the cgroup hierarchy
(create new cgroups, remove old cgroups, move tasks between cgroups)
no matter if some cgroups are frozen.
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
No-objection-from-me-by: Oleg Nesterov <oleg@redhat.com>
Cc: kernel-team@fb.com
Change-Id: I3404119678cbcd7410aa56e9334055cee79d02fa
(cherry picked from commit 76f969e8948d82e78e1bc4beb6b9465908e74873)
cgroup-defs.h: use the struct cgroup_freezer_state and the
freezer field from definitions in I6221a975c04f06249a4f8d693852776ae08a8d8e
sched.h: use the frozen field defined in
I6221a975c04f06249a4f8d693852776ae08a8d8e
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
The helper is identical to the existing cgroup_task_count()
except it doesn't take the css_set_lock by itself, assuming
that the caller does.
Also, move cgroup_task_count() implementation into
kernel/cgroup/cgroup.c, as there is nothing specific to cgroup v1.
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: kernel-team@fb.com
Change-Id: Iaa9085d2375d395a051543d2555389213c2892d6
(cherry picked from commit aade7f9efba098859681f8e88d81a5b44ad09b12)
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
Freezer.c will contain an implementation of cgroup v2 freezer,
so let's rename the v1 freezer to avoid naming conflicts.
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: kernel-team@fb.com
(cherry picked from commit 50943f3e136adfc421f9768d6ae09ba7b83aaefd)
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
Change-Id: I7fa1223c841ee70a0c93fa9cc1ca51a63f53d457
The callers of cgroup_migrate_prepare_dst() correctly call
cgroup_migrate_finish() for success and failure cases both. No need to
call it in cgroup_migrate_prepare_dst() in failure case.
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Daniel Jordan <daniel.m.jordan@oracle.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Change-Id: I785d7ab70a42b1b79aea9852bb14ba5abefcaa9b
(cherry picked from commit d6e486ee0ef2f99a4069d9186e53dac61b28cb3c)
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
* make the reference from superblock to cgroup_root counting -
do cgroup_put() in cgroup_kill_sb() whether we'd done
percpu_ref_kill() or not; matching grab is done when we allocate
a new root. That gives the same refcounting rules for all callers
of cgroup_do_mount() - a reference to cgroup_root has been grabbed
by caller and it either is transferred to new superblock or dropped.
* have cgroup_kill_sb() treat an already killed refcount as "just
don't bother killing it, then".
* after successful cgroup_do_mount() have cgroup1_mount() recheck
if we'd raced with mount/umount from somebody else and cgroup_root
got killed. In that case we drop the superblock and bugger off
with -ERESTARTSYS, same as if we'd found it in the list already
dying.
* don't bother with delayed initialization of refcount - it's
unreliable and not needed. No need to prevent attempts to bump
the refcount if we find cgroup_root of another mount in progress -
sget will reuse an existing superblock just fine and if the
other sb manages to die before we get there, we'll catch
that immediately after cgroup_do_mount().
* don't bother with kernfs_pin_sb() - no need for doing that
either.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Change-Id: I8e088dfc516b76c42d9d4b34db7f49f0cebc5414
(cherry picked from commit 35ac1184244f1329783e1d897f74926d8bb1103a)
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
It can be useful to inhibit all cgroup1 hierarchies especially during
transition and for debugging. cgroup_no_v1 can block hierarchies with
controllers which leaves out the named hierarchies. Expand it to
cover the named hierarchies so that "cgroup_no_v1=all,named" disables
all cgroup1 hierarchies.
Signed-off-by: Tejun Heo <tj@kernel.org>
Suggested-by: Marcin Pawlowski <mpawlowski@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Change-Id: Ibd093dd9b70d15402a21db3c1ef56005ebc7f99e
(cherry picked from commit 3fc9c12d27b4ded4f1f761a800558dab2e6bbac5)
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
WARN_ON() already contains an unlikely(), so it's not necessary to use
unlikely.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Change-Id: I092c0aae2a06b13d3fc9ecfbb24ab3e8d10235f6
(cherry picked from commit 4d9ebbe2b061a9c25e12ba8539ba172533132eb6)
Bug: 154548692
Signed-off-by: Marco Ballesio <balejs@google.com>
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Merge 4.19.140 into android-4.19-stable
Changes in 4.19.140
tracepoint: Mark __tracepoint_string's __used
HID: input: Fix devices that return multiple bytes in battery report
cgroup: add missing skcd->no_refcnt check in cgroup_sk_clone()
x86/mce/inject: Fix a wrong assignment of i_mce.status
sched/fair: Fix NOHZ next idle balance
sched: correct SD_flags returned by tl->sd_flags()
arm64: dts: rockchip: fix rk3368-lion gmac reset gpio
arm64: dts: rockchip: fix rk3399-puma vcc5v0-host gpio
arm64: dts: rockchip: fix rk3399-puma gmac reset gpio
EDAC: Fix reference count leaks
arm64: dts: qcom: msm8916: Replace invalid bias-pull-none property
crypto: ccree - fix resource leak on error path
firmware: arm_scmi: Fix SCMI genpd domain probing
arm64: dts: exynos: Fix silent hang after boot on Espresso
clk: scmi: Fix min and max rate when registering clocks with discrete rates
m68k: mac: Don't send IOP message until channel is idle
m68k: mac: Fix IOP status/control register writes
platform/x86: intel-hid: Fix return value check in check_acpi_dev()
platform/x86: intel-vbtn: Fix return value check in check_acpi_dev()
ARM: dts: gose: Fix ports node name for adv7180
ARM: dts: gose: Fix ports node name for adv7612
ARM: at91: pm: add missing put_device() call in at91_pm_sram_init()
spi: lantiq: fix: Rx overflow error in full duplex mode
ARM: socfpga: PM: add missing put_device() call in socfpga_setup_ocram_self_refresh()
drm/tilcdc: fix leak & null ref in panel_connector_get_modes
soc: qcom: rpmh-rsc: Set suppress_bind_attrs flag
Bluetooth: add a mutex lock to avoid UAF in do_enale_set
loop: be paranoid on exit and prevent new additions / removals
fs/btrfs: Add cond_resched() for try_release_extent_mapping() stalls
drm/amdgpu: avoid dereferencing a NULL pointer
drm/radeon: Fix reference count leaks caused by pm_runtime_get_sync
crypto: aesni - Fix build with LLVM_IAS=1
video: fbdev: neofb: fix memory leak in neo_scan_monitor()
md-cluster: fix wild pointer of unlock_all_bitmaps()
arm64: dts: hisilicon: hikey: fixes to comply with adi, adv7533 DT binding
drm/etnaviv: fix ref count leak via pm_runtime_get_sync
drm/nouveau: fix multiple instances of reference count leaks
usb: mtu3: clear dual mode of u3port when disable device
drm/debugfs: fix plain echo to connector "force" attribute
drm/radeon: disable AGP by default
irqchip/irq-mtk-sysirq: Replace spinlock with raw_spinlock
mm/mmap.c: Add cond_resched() for exit_mmap() CPU stalls
brcmfmac: keep SDIO watchdog running when console_interval is non-zero
brcmfmac: To fix Bss Info flag definition Bug
brcmfmac: set state of hanger slot to FREE when flushing PSQ
iwlegacy: Check the return value of pcie_capability_read_*()
gpu: host1x: debug: Fix multiple channels emitting messages simultaneously
usb: gadget: net2280: fix memory leak on probe error handling paths
bdc: Fix bug causing crash after multiple disconnects
usb: bdc: Halt controller on suspend
dyndbg: fix a BUG_ON in ddebug_describe_flags
bcache: fix super block seq numbers comparision in register_cache_set()
ACPICA: Do not increment operation_region reference counts for field units
drm/msm: ratelimit crtc event overflow error
agp/intel: Fix a memory leak on module initialisation failure
video: fbdev: sm712fb: fix an issue about iounmap for a wrong address
console: newport_con: fix an issue about leak related system resources
video: pxafb: Fix the function used to balance a 'dma_alloc_coherent()' call
ath10k: Acquire tx_lock in tx error paths
iio: improve IIO_CONCENTRATION channel type description
drm/etnaviv: Fix error path on failure to enable bus clk
drm/arm: fix unintentional integer overflow on left shift
leds: lm355x: avoid enum conversion warning
media: omap3isp: Add missed v4l2_ctrl_handler_free() for preview_init_entities()
ASoC: Intel: bxt_rt298: add missing .owner field
scsi: cumana_2: Fix different dev_id between request_irq() and free_irq()
drm/mipi: use dcs write for mipi_dsi_dcs_set_tear_scanline
cxl: Fix kobject memleak
drm/radeon: fix array out-of-bounds read and write issues
scsi: powertec: Fix different dev_id between request_irq() and free_irq()
scsi: eesox: Fix different dev_id between request_irq() and free_irq()
ipvs: allow connection reuse for unconfirmed conntrack
media: firewire: Using uninitialized values in node_probe()
media: exynos4-is: Add missed check for pinctrl_lookup_state()
xfs: don't eat an EIO/ENOSPC writeback error when scrubbing data fork
xfs: fix reflink quota reservation accounting error
RDMA/rxe: Skip dgid check in loopback mode
PCI: Fix pci_cfg_wait queue locking problem
leds: core: Flush scheduled work for system suspend
drm: panel: simple: Fix bpc for LG LB070WV8 panel
phy: exynos5-usbdrd: Calibrating makes sense only for USB2.0 PHY
drm/bridge: sil_sii8620: initialize return of sii8620_readb
scsi: scsi_debug: Add check for sdebug_max_queue during module init
mwifiex: Prevent memory corruption handling keys
powerpc/vdso: Fix vdso cpu truncation
RDMA/qedr: SRQ's bug fixes
RDMA/rxe: Prevent access to wr->next ptr afrer wr is posted to send queue
staging: rtl8192u: fix a dubious looking mask before a shift
PCI/ASPM: Add missing newline in sysfs 'policy'
powerpc/book3s64/pkeys: Use PVR check instead of cpu feature
drm/imx: tve: fix regulator_disable error path
USB: serial: iuu_phoenix: fix led-activity helpers
usb: core: fix quirks_param_set() writing to a const pointer
thermal: ti-soc-thermal: Fix reversed condition in ti_thermal_expose_sensor()
coresight: tmc: Fix TMC mode read in tmc_read_unprepare_etb()
MIPS: OCTEON: add missing put_device() call in dwc3_octeon_device_init()
usb: dwc2: Fix error path in gadget registration
scsi: mesh: Fix panic after host or bus reset
net: dsa: mv88e6xxx: MV88E6097 does not support jumbo configuration
PCI: cadence: Fix updating Vendor ID and Subsystem Vendor ID register
RDMA/core: Fix return error value in _ib_modify_qp() to negative
Smack: fix another vsscanf out of bounds
Smack: prevent underflow in smk_set_cipso()
power: supply: check if calc_soc succeeded in pm860x_init_battery
Bluetooth: hci_h5: Set HCI_UART_RESET_ON_INIT to correct flags
Bluetooth: hci_serdev: Only unregister device if it was registered
net: dsa: rtl8366: Fix VLAN semantics
net: dsa: rtl8366: Fix VLAN set-up
powerpc/boot: Fix CONFIG_PPC_MPC52XX references
selftests/powerpc: Fix CPU affinity for child process
PCI: Release IVRS table in AMD ACS quirk
selftests/powerpc: Fix online CPU selection
ASoC: meson: axg-tdm-interface: fix link fmt setup
s390/qeth: don't process empty bridge port events
wl1251: fix always return 0 error
tools, build: Propagate build failures from tools/build/Makefile.build
net: ethernet: aquantia: Fix wrong return value
liquidio: Fix wrong return value in cn23xx_get_pf_num()
net: spider_net: Fix the size used in a 'dma_free_coherent()' call
fsl/fman: use 32-bit unsigned integer
fsl/fman: fix dereference null return value
fsl/fman: fix unreachable code
fsl/fman: check dereferencing null pointer
fsl/fman: fix eth hash table allocation
dlm: Fix kobject memleak
ocfs2: fix unbalanced locking
pinctrl-single: fix pcs_parse_pinconf() return value
svcrdma: Fix page leak in svc_rdma_recv_read_chunk()
x86/fsgsbase/64: Fix NULL deref in 86_fsgsbase_read_task
crypto: aesni - add compatibility with IAS
af_packet: TPACKET_V3: fix fill status rwlock imbalance
drivers/net/wan/lapbether: Added needed_headroom and a skb->len check
net/nfc/rawsock.c: add CAP_NET_RAW check.
net: Set fput_needed iff FDPUT_FPUT is set
net/tls: Fix kmap usage
net: refactor bind_bucket fastreuse into helper
net: initialize fastreuse on inet_inherit_port
USB: serial: cp210x: re-enable auto-RTS on open
USB: serial: cp210x: enable usb generic throttle/unthrottle
ALSA: hda - fix the micmute led status for Lenovo ThinkCentre AIO
ALSA: usb-audio: Creative USB X-Fi Pro SB1095 volume knob support
ALSA: usb-audio: fix overeager device match for MacroSilicon MS2109
ALSA: usb-audio: work around streaming quirk for MacroSilicon MS2109
pstore: Fix linking when crypto API disabled
crypto: hisilicon - don't sleep of CRYPTO_TFM_REQ_MAY_SLEEP was not specified
crypto: qat - fix double free in qat_uclo_create_batch_init_list
crypto: ccp - Fix use of merged scatterlists
crypto: cpt - don't sleep of CRYPTO_TFM_REQ_MAY_SLEEP was not specified
bitfield.h: don't compile-time validate _val in FIELD_FIT
fs/minix: check return value of sb_getblk()
fs/minix: don't allow getting deleted inodes
fs/minix: reject too-large maximum file size
ALSA: usb-audio: add quirk for Pioneer DDJ-RB
9p: Fix memory leak in v9fs_mount
drm/ttm/nouveau: don't call tt destroy callback on alloc failure.
NFS: Don't move layouts to plh_return_segs list while in use
NFS: Don't return layout segments that are in use
cpufreq: dt: fix oops on armada37xx
include/asm-generic/vmlinux.lds.h: align ro_after_init
spi: spidev: Align buffers for DMA
mtd: rawnand: qcom: avoid write to unavailable register
parisc: Implement __smp_store_release and __smp_load_acquire barriers
parisc: mask out enable and reserved bits from sba imask
ARM: 8992/1: Fix unwind_frame for clang-built kernels
irqdomain/treewide: Free firmware node after domain removal
xen/balloon: fix accounting in alloc_xenballooned_pages error path
xen/balloon: make the balloon wait interruptible
xen/gntdev: Fix dmabuf import with non-zero sgt offset
Linux 4.19.140
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I6b0d8dcf9ded022f62d9c62605388f1c1e9112d1
Add skcd->no_refcnt check which is missed when backporting
ad0f75e5f57c ("cgroup: fix cgroup_sk_alloc() for sk_clone_lock()").
This patch is needed in stable-4.9, stable-4.14 and stable-4.19.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.19.134 into android-4.19-stable
Changes in 4.19.134
perf: Make perf able to build with latest libbfd
net: rmnet: fix lower interface leak
genetlink: remove genl_bind
ipv4: fill fl4_icmp_{type,code} in ping_v4_sendmsg
l2tp: remove skb_dst_set() from l2tp_xmit_skb()
llc: make sure applications use ARPHRD_ETHER
net: Added pointer check for dst->ops->neigh_lookup in dst_neigh_lookup_skb
net_sched: fix a memory leak in atm_tc_init()
net: usb: qmi_wwan: add support for Quectel EG95 LTE modem
tcp: fix SO_RCVLOWAT possible hangs under high mem pressure
tcp: make sure listeners don't initialize congestion-control state
tcp: md5: add missing memory barriers in tcp_md5_do_add()/tcp_md5_hash_key()
tcp: md5: do not send silly options in SYNCOOKIES
tcp: md5: refine tcp_md5_do_add()/tcp_md5_hash_key() barriers
tcp: md5: allow changing MD5 keys in all socket states
cgroup: fix cgroup_sk_alloc() for sk_clone_lock()
cgroup: Fix sock_cgroup_data on big-endian.
sched: consistently handle layer3 header accesses in the presence of VLANs
vlan: consolidate VLAN parsing code and limit max parsing depth
drm/msm: fix potential memleak in error branch
drm/exynos: fix ref count leak in mic_pre_enable
m68k: nommu: register start of the memory with memblock
m68k: mm: fix node memblock init
arm64/alternatives: use subsections for replacement sequences
tpm_tis: extra chip->ops check on error path in tpm_tis_core_init
gfs2: read-only mounts should grab the sd_freeze_gl glock
i2c: eg20t: Load module automatically if ID matches
arm64/alternatives: don't patch up internal branches
iio:magnetometer:ak8974: Fix alignment and data leak issues
iio:humidity:hdc100x Fix alignment and data leak issues
iio: magnetometer: ak8974: Fix runtime PM imbalance on error
iio: mma8452: Add missed iio_device_unregister() call in mma8452_probe()
iio: pressure: zpa2326: handle pm_runtime_get_sync failure
iio:humidity:hts221 Fix alignment and data leak issues
iio:pressure:ms5611 Fix buffer element alignment
iio:health:afe4403 Fix timestamp alignment and prevent data leak.
spi: fix initial SPI_SR value in spi-fsl-dspi
spi: spi-fsl-dspi: Fix lockup if device is shutdown during SPI transfer
net: dsa: bcm_sf2: Fix node reference count
of: of_mdio: Correct loop scanning logic
Revert "usb/ohci-platform: Fix a warning when hibernating"
Revert "usb/xhci-plat: Set PM runtime as active on resume"
Revert "usb/ehci-platform: Set PM runtime as active on resume"
net: sfp: add support for module quirks
net: sfp: add some quirks for GPON modules
HID: quirks: Remove ITE 8595 entry from hid_have_special_driver
ARM: at91: pm: add quirk for sam9x60's ulp1
scsi: sr: remove references to BLK_DEV_SR_VENDOR, leave it enabled
ALSA: usb-audio: Create a registration quirk for Kingston HyperX Amp (0951:16d8)
doc: dt: bindings: usb: dwc3: Update entries for disabling SS instances in park mode
mmc: sdhci: do not enable card detect interrupt for gpio cd type
ALSA: usb-audio: Rewrite registration quirk handling
ACPI: video: Use native backlight on Acer Aspire 5783z
ALSA: usb-audio: Add registration quirk for Kingston HyperX Cloud Alpha S
Input: mms114 - add extra compatible for mms345l
ACPI: video: Use native backlight on Acer TravelMate 5735Z
ALSA: usb-audio: Add registration quirk for Kingston HyperX Cloud Flight S
iio:health:afe4404 Fix timestamp alignment and prevent data leak.
phy: sun4i-usb: fix dereference of pointer phy0 before it is null checked
arm64: dts: meson: add missing gxl rng clock
spi: spi-sun6i: sun6i_spi_transfer_one(): fix setting of clock rate
usb: gadget: udc: atmel: fix uninitialized read in debug printk
staging: comedi: verify array index is correct before using it
Revert "thermal: mediatek: fix register index error"
ARM: dts: socfpga: Align L2 cache-controller nodename with dtschema
regmap: debugfs: Don't sleep while atomic for fast_io regmaps
copy_xstate_to_kernel: Fix typo which caused GDB regression
apparmor: ensure that dfa state tables have entries
perf stat: Zero all the 'ena' and 'run' array slot stats for interval mode
soc: qcom: rpmh: Update dirty flag only when data changes
soc: qcom: rpmh: Invalidate SLEEP and WAKE TCSes before flushing new data
soc: qcom: rpmh-rsc: Clear active mode configuration for wake TCS
soc: qcom: rpmh-rsc: Allow using free WAKE TCS for active request
mtd: rawnand: marvell: Use nand_cleanup() when the device is not yet registered
mtd: rawnand: marvell: Fix probe error path
mtd: rawnand: timings: Fix default tR_max and tCCS_min timings
mtd: rawnand: brcmnand: fix CS0 layout
mtd: rawnand: oxnas: Keep track of registered devices
mtd: rawnand: oxnas: Unregister all devices on error
mtd: rawnand: oxnas: Release all devices in the _remove() path
slimbus: core: Fix mismatch in of_node_get/put
HID: magicmouse: do not set up autorepeat
HID: quirks: Always poll Obins Anne Pro 2 keyboard
HID: quirks: Ignore Simply Automated UPB PIM
ALSA: line6: Perform sanity check for each URB creation
ALSA: line6: Sync the pending work cancel at disconnection
ALSA: usb-audio: Fix race against the error recovery URB submission
ALSA: hda/realtek - change to suitable link model for ASUS platform
ALSA: hda/realtek - Enable Speaker for ASUS UX533 and UX534
USB: c67x00: fix use after free in c67x00_giveback_urb
usb: dwc2: Fix shutdown callback in platform
usb: chipidea: core: add wakeup support for extcon
usb: gadget: function: fix missing spinlock in f_uac1_legacy
USB: serial: iuu_phoenix: fix memory corruption
USB: serial: cypress_m8: enable Simply Automated UPB PIM
USB: serial: ch341: add new Product ID for CH340
USB: serial: option: add GosunCn GM500 series
USB: serial: option: add Quectel EG95 LTE modem
virt: vbox: Fix VBGL_IOCTL_VMMDEV_REQUEST_BIG and _LOG req numbers to match upstream
virt: vbox: Fix guest capabilities mask check
virtio: virtio_console: add missing MODULE_DEVICE_TABLE() for rproc serial
serial: mxs-auart: add missed iounmap() in probe failure and remove
ovl: inode reference leak in ovl_is_inuse true case.
ovl: relax WARN_ON() when decoding lower directory file handle
ovl: fix unneeded call to ovl_change_flags()
fuse: Fix parameter for FS_IOC_{GET,SET}FLAGS
Revert "zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()"
mei: bus: don't clean driver pointer
Input: i8042 - add Lenovo XiaoXin Air 12 to i8042 nomux list
uio_pdrv_genirq: fix use without device tree and no interrupt
timer: Prevent base->clk from moving backward
timer: Fix wheel index calculation on last level
MIPS: Fix build for LTS kernel caused by backporting lpj adjustment
riscv: use 16KB kernel stack on 64-bit
hwmon: (emc2103) fix unable to change fan pwm1_enable attribute
powerpc/book3s64/pkeys: Fix pkey_access_permitted() for execute disable pkey
intel_th: pci: Add Jasper Lake CPU support
intel_th: pci: Add Tiger Lake PCH-H support
intel_th: pci: Add Emmitsburg PCH support
intel_th: Fix a NULL dereference when hub driver is not loaded
dmaengine: fsl-edma: Fix NULL pointer exception in fsl_edma_tx_handler
misc: atmel-ssc: lock with mutex instead of spinlock
thermal/drivers/cpufreq_cooling: Fix wrong frequency converted from power
arm64: ptrace: Override SPSR.SS when single-stepping is enabled
arm64: ptrace: Consistently use pseudo-singlestep exceptions
arm64: compat: Ensure upper 32 bits of x0 are zero on syscall return
sched: Fix unreliable rseq cpu_id for new tasks
sched/fair: handle case of task_h_load() returning 0
genirq/affinity: Handle affinity setting on inactive interrupts correctly
printk: queue wake_up_klogd irq_work only if per-CPU areas are ready
libceph: don't omit recovery_deletes in target_copy()
rxrpc: Fix trace string
spi: sprd: switch the sequence of setting WDG_LOAD_LOW and _HIGH
Linux 4.19.134
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ieeb9e03f4a2d51aeebe3a3eadd9c1b93a26088a0
[ Upstream commit ad0f75e5f57ccbceec13274e1e242f2b5a6397ed ]
When we clone a socket in sk_clone_lock(), its sk_cgrp_data is
copied, so the cgroup refcnt must be taken too. And, unlike the
sk_alloc() path, sock_update_netprioidx() is not called here.
Therefore, it is safe and necessary to grab the cgroup refcnt
even when cgroup_sk_alloc is disabled.
sk_clone_lock() is in BH context anyway, the in_interrupt()
would terminate this function if called there. And for sk_alloc()
skcd->val is always zero. So it's safe to factor out the code
to make it more readable.
The global variable 'cgroup_sk_alloc_disabled' is used to determine
whether to take these reference counts. It is impossible to make
the reference counting correct unless we save this bit of information
in skcd->val. So, add a new bit there to record whether the socket
has already taken the reference counts. This obviously relies on
kmalloc() to align cgroup pointers to at least 4 bytes,
ARCH_KMALLOC_MINALIGN is certainly larger than that.
This bug seems to be introduced since the beginning, commit
d979a39d72 ("cgroup: duplicate cgroup reference when cloning sockets")
tried to fix it but not compeletely. It seems not easy to trigger until
the recent commit 090e28b229af
("netprio_cgroup: Fix unlimited memory leak of v2 cgroups") was merged.
Fixes: bd1060a1d6 ("sock, cgroup: add sock->sk_cgroup")
Reported-by: Cameron Berkenpas <cam@neo-zeon.de>
Reported-by: Peter Geis <pgwipeout@gmail.com>
Reported-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>
Reported-by: Daniël Sonck <dsonck92@gmail.com>
Reported-by: Zhang Qiang <qiang.zhang@windriver.com>
Tested-by: Cameron Berkenpas <cam@neo-zeon.de>
Tested-by: Peter Geis <pgwipeout@gmail.com>
Tested-by: Thomas Lamprecht <t.lamprecht@proxmox.com>
Cc: Daniel Borkmann <daniel@iogearbox.net>
Cc: Zefan Li <lizefan@huawei.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Roman Gushchin <guro@fb.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.19.127 into android-4.19-stable
Changes in 4.19.127
Revert "cgroup: Add memory barriers to plug cgroup_rstat_updated() race window"
libnvdimm: Fix endian conversion issues
mm: Fix mremap not considering huge pmd devmap
HID: sony: Fix for broken buttons on DS3 USB dongles
HID: i2c-hid: add Schneider SCL142ALM to descriptor override
p54usb: add AirVasT USB stick device-id
kernel/relay.c: handle alloc_percpu returning NULL in relay_open
mmc: fix compilation of user API
scsi: ufs: Release clock if DMA map fails
net: dsa: mt7530: set CPU port to fallback mode
airo: Fix read overflows sending packets
drm/i915: fix port checks for MST support on gen >= 11
scsi: hisi_sas: Check sas_port before using it
powerpc/powernv: Avoid re-registration of imc debugfs directory
spi: dw: use "smp_mb()" to avoid sending spi data error
s390/ftrace: save traced function caller
ARC: Fix ICCM & DCCM runtime size checks
ARC: [plat-eznps]: Restrict to CONFIG_ISA_ARCOMPACT
evm: Fix RCU list related warnings
i2c: altera: Fix race between xfer_msg and isr thread
x86/mmiotrace: Use cpumask_available() for cpumask_var_t variables
net: bmac: Fix read of MAC address from ROM
drm/edid: Add Oculus Rift S to non-desktop list
s390/mm: fix set_huge_pte_at() for empty ptes
null_blk: return error for invalid zone size
net/ethernet/freescale: rework quiesce/activate for ucc_geth
net: ethernet: stmmac: Enable interface clocks on probe for IPQ806x
net: smsc911x: Fix runtime PM imbalance on error
Linux 4.19.127
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I0ba65b19a1f1d3d1767e8f5cccef4b2f320cdd59
[ Upstream commit d8ef4b38cb69d907f9b0e889c44d05fc0f890977 ]
This reverts commit 9a9e97b2f1 ("cgroup: Add memory barriers to plug
cgroup_rstat_updated() race window").
The commit was added in anticipation of memcg rstat conversion which needed
synchronous accounting for the event counters (e.g. oom kill count). However,
the conversion didn't get merged due to percpu memory overhead concern which
couldn't be addressed at the time.
Unfortunately, the patch's addition of smp_mb() to cgroup_rstat_updated()
meant that every scheduling event now had to go through an additional full
barrier and Mel Gorman noticed it as 1% regression in netperf UDP_STREAM test.
There's no need to have this barrier in tree now and even if we need
synchronous accounting in the future, the right thing to do is separating that
out to a separate function so that hot paths which don't care about
synchronous behavior don't have to pay the overhead of the full barrier. Let's
revert.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Mel Gorman <mgorman@techsingularity.net>
Link: http://lkml.kernel.org/r/20200409154413.GK3818@techsingularity.net
Cc: v4.18+
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.19.114 into android-4.19
Changes in 4.19.114
mmc: core: Allow host controllers to require R1B for CMD6
mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for erase/trim/discard
mmc: core: Respect MMC_CAP_NEED_RSP_BUSY for eMMC sleep command
mmc: sdhci-omap: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
mmc: sdhci-tegra: Fix busy detection by enabling MMC_CAP_NEED_RSP_BUSY
Revert "drm/dp_mst: Skip validating ports during destruction, just ref"
geneve: move debug check after netdev unregister
hsr: fix general protection fault in hsr_addr_is_self()
macsec: restrict to ethernet devices
mlxsw: spectrum_mr: Fix list iteration in error path
net: cbs: Fix software cbs to consider packet sending time
net: dsa: Fix duplicate frames flooded by learning
net: mvneta: Fix the case where the last poll did not process all rx
net/packet: tpacket_rcv: avoid a producer race condition
net: qmi_wwan: add support for ASKEY WWHC050
net_sched: cls_route: remove the right filter from hashtable
net_sched: keep alloc_hash updated after hash allocation
net: stmmac: dwmac-rk: fix error path in rk_gmac_probe
NFC: fdp: Fix a signedness bug in fdp_nci_send_patch()
slcan: not call free_netdev before rtnl_unlock in slcan_open
bnxt_en: fix memory leaks in bnxt_dcbnl_ieee_getets()
bnxt_en: Reset rings if ring reservation fails during open()
net: ip_gre: Separate ERSPAN newlink / changelink callbacks
net: ip_gre: Accept IFLA_INFO_DATA-less configuration
net: dsa: mt7530: Change the LINK bit to reflect the link status
net: phy: mdio-mux-bcm-iproc: check clk_prepare_enable() return value
r8169: re-enable MSI on RTL8168c
tcp: repair: fix TCP_QUEUE_SEQ implementation
vxlan: check return value of gro_cells_init()
hsr: use rcu_read_lock() in hsr_get_node_{list/status}()
hsr: add restart routine into hsr_get_node_list()
hsr: set .netnsok flag
cgroup-v1: cgroup_pidlist_next should update position index
nfs: add minor version to nfs_server_key for fscache
cpupower: avoid multiple definition with gcc -fno-common
drivers/of/of_mdio.c:fix of_mdiobus_register()
cgroup1: don't call release_agent when it is ""
dt-bindings: net: FMan erratum A050385
arm64: dts: ls1043a: FMan erratum A050385
fsl/fman: detect FMan erratum A050385
s390/qeth: handle error when backing RX buffer
scsi: ipr: Fix softlockup when rescanning devices in petitboot
mac80211: Do not send mesh HWMP PREQ if HWMP is disabled
dpaa_eth: Remove unnecessary boolean expression in dpaa_get_headroom
sxgbe: Fix off by one in samsung driver strncpy size arg
ftrace/x86: Anotate text_mutex split between ftrace_arch_code_modify_post_process() and ftrace_arch_code_modify_prepare()
i2c: hix5hd2: add missed clk_disable_unprepare in remove
Input: raydium_i2c_ts - fix error codes in raydium_i2c_boot_trigger()
Input: synaptics - enable RMI on HP Envy 13-ad105ng
Input: avoid BIT() macro usage in the serio.h UAPI header
ceph: check POOL_FLAG_FULL/NEARFULL in addition to OSDMAP_FULL/NEARFULL
ARM: dts: dra7: Add bus_dma_limit for L3 bus
ARM: dts: omap5: Add bus_dma_limit for L3 bus
perf probe: Do not depend on dwfl_module_addrsym()
tools: Let O= makes handle a relative path with -C option
scripts/dtc: Remove redundant YYLOC global declaration
scsi: sd: Fix optimal I/O size for devices that change reported values
nl80211: fix NL80211_ATTR_CHANNEL_WIDTH attribute type
mac80211: mark station unauthorized before key removal
gpiolib: acpi: Correct comment for HP x2 10 honor_wakeup quirk
gpiolib: acpi: Rework honor_wakeup option into an ignore_wake option
gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 BYT + AXP288 model
RDMA/core: Ensure security pkey modify is not lost
genirq: Fix reference leaks on irq affinity notifiers
xfrm: handle NETDEV_UNREGISTER for xfrm device
vti[6]: fix packet tx through bpf_redirect() in XinY cases
RDMA/mlx5: Block delay drop to unprivileged users
xfrm: fix uctx len check in verify_sec_ctx_len
xfrm: add the missing verify_sec_ctx_len check in xfrm_add_acquire
xfrm: policy: Fix doulbe free in xfrm_policy_timer
afs: Fix some tracing details
netfilter: flowtable: reload ip{v6}h in nf_flow_tuple_ip{v6}
netfilter: nft_fwd_netdev: validate family and chain type
bpf/btf: Fix BTF verification of enum members in struct/union
vti6: Fix memory leak of skb if input policy check fails
Revert "r8169: check that Realtek PHY driver module is loaded"
mac80211: add option for setting control flags
mac80211: set IEEE80211_TX_CTRL_PORT_CTRL_PROTO for nl80211 TX
USB: serial: option: add support for ASKEY WWHC050
USB: serial: option: add BroadMobi BM806U
USB: serial: option: add Wistron Neweb D19Q1
USB: cdc-acm: restore capability check order
USB: serial: io_edgeport: fix slab-out-of-bounds read in edge_interrupt_callback
usb: musb: fix crash with highmen PIO and usbmon
media: flexcop-usb: fix endpoint sanity check
media: usbtv: fix control-message timeouts
staging: rtl8188eu: Add ASUS USB-N10 Nano B1 to device table
staging: wlan-ng: fix ODEBUG bug in prism2sta_disconnect_usb
staging: wlan-ng: fix use-after-free Read in hfa384x_usbin_callback
ahci: Add Intel Comet Lake H RAID PCI ID
libfs: fix infoleak in simple_attr_read()
media: ov519: add missing endpoint sanity checks
media: dib0700: fix rc endpoint lookup
media: stv06xx: add missing descriptor sanity checks
media: xirlink_cit: add missing descriptor sanity checks
mac80211: Check port authorization in the ieee80211_tx_dequeue() case
mac80211: fix authentication with iwlwifi/mvm
vt: selection, introduce vc_is_sel
vt: ioctl, switch VT_IS_IN_USE and VT_BUSY to inlines
vt: switch vt_dont_switch to bool
vt: vt_ioctl: remove unnecessary console allocation checks
vt: vt_ioctl: fix VT_DISALLOCATE freeing in-use virtual console
vt: vt_ioctl: fix use-after-free in vt_in_use()
platform/x86: pmc_atom: Add Lex 2I385SW to critclk_systems DMI table
bpf: Explicitly memset the bpf_attr structure
bpf: Explicitly memset some bpf info structures declared on the stack
gpiolib: acpi: Add quirk to ignore EC wakeups on HP x2 10 CHT + AXP288 model
net: ks8851-ml: Fix IO operations, again
arm64: alternative: fix build with clang integrated assembler
perf map: Fix off by one in strncpy() size argument
ARM: dts: oxnas: Fix clear-mask property
ARM: bcm2835-rpi-zero-w: Add missing pinctrl name
ARM: dts: imx6: phycore-som: fix arm and soc minimum voltage
ARM: dts: N900: fix onenand timings
arm64: dts: ls1043a-rdb: correct RGMII delay mode to rgmii-id
arm64: dts: ls1046ardb: set RGMII interfaces to RGMII_ID mode
Linux 4.19.114
Change-Id: Icc165d2e49aba750e1b5a8856d9774c149e59ce7
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 2e5383d7904e60529136727e49629a82058a5607 ]
Older (and maybe current) versions of systemd set release_agent to "" when
shutting down, but do not set notify_on_release to 0.
Since 64e90a8acb ("Introduce STATIC_USERMODEHELPER to mediate
call_usermodehelper()"), we filter out such calls when the user mode helper
path is "". However, when used in conjunction with an actual (i.e. non "")
STATIC_USERMODEHELPER, the path is never "", so the real usermode helper
will be called with argv[0] == "".
Let's avoid this by not invoking the release_agent when it is "".
Signed-off-by: Tycho Andersen <tycho@tycho.ws>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit db8dd9697238be70a6b4f9d0284cd89f59c0e070 ]
if seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output.
# mount | grep cgroup
# dd if=/mnt/cgroup.procs bs=1 # normal output
...
1294
1295
1296
1304
1382
584+0 records in
584+0 records out
584 bytes copied
dd: /mnt/cgroup.procs: cannot skip to specified offset
83 <<< generates end of last line
1383 <<< ... and whole last line once again
0+1 records in
0+1 records out
8 bytes copied
dd: /mnt/cgroup.procs: cannot skip to specified offset
1386 <<< generates last line anyway
0+1 records in
0+1 records out
5 bytes copied
https://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.19.111 into android-4.19
Changes in 4.19.111
phy: Revert toggling reset changes.
net: phy: Avoid multiple suspends
cgroup, netclassid: periodically release file_lock on classid updating
gre: fix uninit-value in __iptunnel_pull_header
inet_diag: return classid for all socket types
ipv6/addrconf: call ipv6_mc_up() for non-Ethernet interface
ipvlan: add cond_resched_rcu() while processing muticast backlog
ipvlan: do not add hardware address of master to its unicast filter list
ipvlan: do not use cond_resched_rcu() in ipvlan_process_multicast()
ipvlan: don't deref eth hdr before checking it's set
net/ipv6: use configured metric when add peer route
netlink: Use netlink header as base to calculate bad attribute offset
net: macsec: update SCI upon MAC address change.
net: nfc: fix bounds checking bugs on "pipe"
net/packet: tpacket_rcv: do not increment ring index on drop
net: stmmac: dwmac1000: Disable ACS if enhanced descs are not used
net: systemport: fix index check to avoid an array out of bounds access
r8152: check disconnect status after long sleep
sfc: detach from cb_page in efx_copy_channel()
bnxt_en: reinitialize IRQs when MTU is modified
cgroup: memcg: net: do not associate sock with unrelated cgroup
net: memcg: late association of sock to memcg
net: memcg: fix lockdep splat in inet_csk_accept()
devlink: validate length of param values
fib: add missing attribute validation for tun_id
nl802154: add missing attribute validation
nl802154: add missing attribute validation for dev_type
can: add missing attribute validation for termination
macsec: add missing attribute validation for port
net: fq: add missing attribute validation for orphan mask
team: add missing attribute validation for port ifindex
team: add missing attribute validation for array index
nfc: add missing attribute validation for SE API
nfc: add missing attribute validation for deactivate target
nfc: add missing attribute validation for vendor subcommand
net: phy: fix MDIO bus PM PHY resuming
selftests/net/fib_tests: update addr_metric_test for peer route testing
net/ipv6: need update peer route when modify metric
net/ipv6: remove the old peer route if change it to a new one
tipc: add missing attribute validation for MTU property
devlink: validate length of region addr/len
bonding/alb: make sure arp header is pulled before accessing it
slip: make slhc_compress() more robust against malicious packets
net: fec: validate the new settings in fec_enet_set_coalesce()
macvlan: add cond_resched() during multicast processing
cgroup: cgroup_procs_next should increase position index
cgroup: Iterate tasks that did not finish do_exit()
iwlwifi: mvm: Do not require PHY_SKU NVM section for 3168 devices
virtio-blk: fix hw_queue stopped on arbitrary error
iommu/vt-d: quirk_ioat_snb_local_iommu: replace WARN_TAINT with pr_warn + add_taint
netfilter: nf_conntrack: ct_cpu_seq_next should increase position index
netfilter: synproxy: synproxy_cpu_seq_next should increase position index
netfilter: xt_recent: recent_seq_next should increase position index
netfilter: x_tables: xt_mttg_seq_next should increase position index
workqueue: don't use wq_select_unbound_cpu() for bound works
drm/amd/display: remove duplicated assignment to grph_obj_type
ktest: Add timeout for ssh sync testing
cifs_atomic_open(): fix double-put on late allocation failure
gfs2_atomic_open(): fix O_EXCL|O_CREAT handling on cold dcache
KVM: x86: clear stale x86_emulate_ctxt->intercept value
ARC: define __ALIGN_STR and __ALIGN symbols for ARC
macintosh: windfarm: fix MODINFO regression
efi: Fix a race and a buffer overflow while reading efivars via sysfs
efi: Make efi_rts_work accessible to efi page fault handler
mt76: fix array overflow on receiving too many fragments for a packet
x86/mce: Fix logic and comments around MSR_PPIN_CTL
iommu/dma: Fix MSI reservation allocation
iommu/vt-d: dmar: replace WARN_TAINT with pr_warn + add_taint
iommu/vt-d: Fix a bug in intel_iommu_iova_to_phys() for huge page
batman-adv: Don't schedule OGM for disabled interface
pinctrl: meson-gxl: fix GPIOX sdio pins
pinctrl: core: Remove extra kref_get which blocks hogs being freed
drm/i915/gvt: Fix unnecessary schedule timer when no vGPU exits
i2c: gpio: suppress error on probe defer
nl80211: add missing attribute validation for critical protocol indication
nl80211: add missing attribute validation for beacon report scanning
nl80211: add missing attribute validation for channel switch
perf bench futex-wake: Restore thread count default to online CPU count
netfilter: cthelper: add missing attribute validation for cthelper
netfilter: nft_payload: add missing attribute validation for payload csum flags
netfilter: nft_tunnel: add missing attribute validation for tunnels
iommu/vt-d: Fix the wrong printing in RHSA parsing
iommu/vt-d: Ignore devices with out-of-spec domain number
i2c: acpi: put device when verifying client fails
ipv6: restrict IPV6_ADDRFORM operation
net/smc: check for valid ib_client_data
net/smc: cancel event worker during device removal
efi: Add a sanity check to efivar_store_raw()
batman-adv: Avoid free/alloc race when handling OGM2 buffer
Linux 4.19.111
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ide220f0b6a12d291bda4a83f17cde25bbe64e2ff
commit 9c974c77246460fa6a92c18554c3311c8c83c160 upstream.
PF_EXITING is set earlier than actual removal from css_set when a task
is exitting. This can confuse cgroup.procs readers who see no PF_EXITING
tasks, however, rmdir is checking against css_set membership so it can
transitionally fail with EBUSY.
Fix this by listing tasks that weren't unlinked from css_set active
lists.
It may happen that other users of the task iterator (without
CSS_TASK_ITER_PROCS) spot a PF_EXITING task before cgroup_exit(). This
is equal to the state before commit c03cd7738a83 ("cgroup: Include dying
leaders with live threads in PROCS iterations") but it may be reviewed
later.
Reported-by: Suren Baghdasaryan <surenb@google.com>
Fixes: c03cd7738a83 ("cgroup: Include dying leaders with live threads in PROCS iterations")
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit 2d4ecb030dcc90fb725ecbfc82ce5d6c37906e0e upstream.
If seq_file .next fuction does not change position index,
read after some lseek can generate unexpected output:
1) dd bs=1 skip output of each 2nd elements
$ dd if=/sys/fs/cgroup/cgroup.procs bs=8 count=1
2
3
4
5
1+0 records in
1+0 records out
8 bytes copied, 0,000267297 s, 29,9 kB/s
[test@localhost ~]$ dd if=/sys/fs/cgroup/cgroup.procs bs=1 count=8
2
4 <<< NB! 3 was skipped
6 <<< ... and 5 too
8 <<< ... and 7
8+0 records in
8+0 records out
8 bytes copied, 5,2123e-05 s, 153 kB/s
This happen because __cgroup_procs_start() makes an extra
extra cgroup_procs_next() call
2) read after lseek beyond end of file generates whole last line.
3) read after lseek into middle of last line generates
expected rest of last line and unexpected whole line once again.
Additionally patch removes an extra position index changes in
__cgroup_procs_start()
Cc: stable@vger.kernel.orghttps://bugzilla.kernel.org/show_bug.cgi?id=206283
Signed-off-by: Vasily Averin <vvs@virtuozzo.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
[ Upstream commit e876ecc67db80dfdb8e237f71e5b43bb88ae549c ]
We are testing network memory accounting in our setup and noticed
inconsistent network memory usage and often unrelated cgroups network
usage correlates with testing workload. On further inspection, it
seems like mem_cgroup_sk_alloc() and cgroup_sk_alloc() are broken in
irq context specially for cgroup v1.
mem_cgroup_sk_alloc() and cgroup_sk_alloc() can be called in irq context
and kind of assumes that this can only happen from sk_clone_lock()
and the source sock object has already associated cgroup. However in
cgroup v1, where network memory accounting is opt-in, the source sock
can be unassociated with any cgroup and the new cloned sock can get
associated with unrelated interrupted cgroup.
Cgroup v2 can also suffer if the source sock object was created by
process in the root cgroup or if sk_alloc() is called in irq context.
The fix is to just do nothing in interrupt.
WARNING: Please note that about half of the TCP sockets are allocated
from the IRQ context, so, memory used by such sockets will not be
accouted by the memcg.
The stack trace of mem_cgroup_sk_alloc() from IRQ-context:
CPU: 70 PID: 12720 Comm: ssh Tainted: 5.6.0-smp-DEV #1
Hardware name: ...
Call Trace:
<IRQ>
dump_stack+0x57/0x75
mem_cgroup_sk_alloc+0xe9/0xf0
sk_clone_lock+0x2a7/0x420
inet_csk_clone_lock+0x1b/0x110
tcp_create_openreq_child+0x23/0x3b0
tcp_v6_syn_recv_sock+0x88/0x730
tcp_check_req+0x429/0x560
tcp_v6_rcv+0x72d/0xa40
ip6_protocol_deliver_rcu+0xc9/0x400
ip6_input+0x44/0xd0
? ip6_protocol_deliver_rcu+0x400/0x400
ip6_rcv_finish+0x71/0x80
ipv6_rcv+0x5b/0xe0
? ip6_sublist_rcv+0x2e0/0x2e0
process_backlog+0x108/0x1e0
net_rx_action+0x26b/0x460
__do_softirq+0x104/0x2a6
do_softirq_own_stack+0x2a/0x40
</IRQ>
do_softirq.part.19+0x40/0x50
__local_bh_enable_ip+0x51/0x60
ip6_finish_output2+0x23d/0x520
? ip6table_mangle_hook+0x55/0x160
__ip6_finish_output+0xa1/0x100
ip6_finish_output+0x30/0xd0
ip6_output+0x73/0x120
? __ip6_finish_output+0x100/0x100
ip6_xmit+0x2e3/0x600
? ipv6_anycast_cleanup+0x50/0x50
? inet6_csk_route_socket+0x136/0x1e0
? skb_free_head+0x1e/0x30
inet6_csk_xmit+0x95/0xf0
__tcp_transmit_skb+0x5b4/0xb20
__tcp_send_ack.part.60+0xa3/0x110
tcp_send_ack+0x1d/0x20
tcp_rcv_state_process+0xe64/0xe80
? tcp_v6_connect+0x5d1/0x5f0
tcp_v6_do_rcv+0x1b1/0x3f0
? tcp_v6_do_rcv+0x1b1/0x3f0
__release_sock+0x7f/0xd0
release_sock+0x30/0xa0
__inet_stream_connect+0x1c3/0x3b0
? prepare_to_wait+0xb0/0xb0
inet_stream_connect+0x3b/0x60
__sys_connect+0x101/0x120
? __sys_getsockopt+0x11b/0x140
__x64_sys_connect+0x1a/0x20
do_syscall_64+0x51/0x200
entry_SYSCALL_64_after_hwframe+0x44/0xa9
The stack trace of mem_cgroup_sk_alloc() from IRQ-context:
Fixes: 2d75807383 ("mm: memcontrol: consolidate cgroup socket tracking")
Fixes: d979a39d72 ("cgroup: duplicate cgroup reference when cloning sockets")
Signed-off-by: Shakeel Butt <shakeelb@google.com>
Reviewed-by: Roman Gushchin <guro@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
PF_EXITING is set earlier than actual removal from css_set when a task
is exitting. This can confuse cgroup.procs readers who see no PF_EXITING
tasks, however, rmdir is checking against css_set membership so it can
transitionally fail with EBUSY.
Fix this by listing tasks that weren't unlinked from css_set active
lists.
It may happen that other users of the task iterator (without
CSS_TASK_ITER_PROCS) spot a PF_EXITING task before cgroup_exit(). This
is equal to the state before commit c03cd7738a83 ("cgroup: Include dying
leaders with live threads in PROCS iterations") but it may be reviewed
later.
Reported-by: Suren Baghdasaryan <surenb@google.com>
Fixes: c03cd7738a83 ("cgroup: Include dying leaders with live threads in PROCS iterations")
Signed-off-by: Michal Koutný <mkoutny@suse.com>
(cherry picked from commit 9c974c77246460fa6a92c18554c3311c8c83c160)
Bug: 141213848
Bug: 146758430
Test: test_cgcore_destroy from linux-kselftest
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Change-Id: Iac57661b931129ed1e44b89675f8115bb89084ff
(cherry picked from commit 21ee296526c70d6dc3c64639406f156f39b80fd0)
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Merge 4.19.102 into android-4.19
Changes in 4.19.102
vfs: fix do_last() regression
x86/resctrl: Fix use-after-free when deleting resource groups
x86/resctrl: Fix use-after-free due to inaccurate refcount of rdtgroup
x86/resctrl: Fix a deadlock due to inaccurate reference
crypto: pcrypt - Fix user-after-free on module unload
rsi: add hci detach for hibernation and poweroff
rsi: fix use-after-free on failed probe and unbind
perf c2c: Fix return type for histogram sorting comparision functions
PM / devfreq: Add new name attribute for sysfs
tools lib: Fix builds when glibc contains strlcpy()
arm64: kbuild: remove compressed images on 'make ARCH=arm64 (dist)clean'
ext4: validate the debug_want_extra_isize mount option at parse time
mm/mempolicy.c: fix out of bounds write in mpol_parse_str()
reiserfs: Fix memory leak of journal device string
media: digitv: don't continue if remote control state can't be read
media: af9005: uninitialized variable printked
media: vp7045: do not read uninitialized values if usb transfer fails
media: gspca: zero usb_buf
media: dvb-usb/dvb-usb-urb.c: initialize actlen to 0
tomoyo: Use atomic_t for statistics counter
ttyprintk: fix a potential deadlock in interrupt context issue
Bluetooth: Fix race condition in hci_release_sock()
cgroup: Prevent double killing of css when enabling threaded cgroup
media: si470x-i2c: Move free() past last use of 'radio'
ARM: dts: sun8i: a83t: Correct USB3503 GPIOs polarity
ARM: dts: am57xx-beagle-x15/am57xx-idk: Remove "gpios" for endpoint dt nodes
ARM: dts: beagle-x15-common: Model 5V0 regulator
soc: ti: wkup_m3_ipc: Fix race condition with rproc_boot
tools lib traceevent: Fix memory leakage in filter_event
rseq: Unregister rseq for clone CLONE_VM
clk: sunxi-ng: h6-r: Fix AR100/R_APB2 parent order
mac80211: mesh: restrict airtime metric to peered established plinks
clk: mmp2: Fix the order of timer mux parents
ASoC: rt5640: Fix NULL dereference on module unload
ixgbevf: Remove limit of 10 entries for unicast filter list
ixgbe: Fix calculation of queue with VFs and flow director on interface flap
igb: Fix SGMII SFP module discovery for 100FX/LX.
platform/x86: GPD pocket fan: Allow somewhat lower/higher temperature limits
ASoC: sti: fix possible sleep-in-atomic
qmi_wwan: Add support for Quectel RM500Q
parisc: Use proper printk format for resource_size_t
wireless: fix enabling channel 12 for custom regulatory domain
cfg80211: Fix radar event during another phy CAC
mac80211: Fix TKIP replay protection immediately after key setup
wireless: wext: avoid gcc -O3 warning
netfilter: nft_tunnel: ERSPAN_VERSION must not be null
net: dsa: bcm_sf2: Configure IMP port for 2Gb/sec
bnxt_en: Fix ipv6 RFS filter matching logic.
riscv: delete temporary files
iwlwifi: Don't ignore the cap field upon mcc update
ARM: dts: am335x-boneblack-common: fix memory size
vti[6]: fix packet tx through bpf_redirect()
xfrm interface: fix packet tx through bpf_redirect()
xfrm: interface: do not confirm neighbor when do pmtu update
scsi: fnic: do not queue commands during fwreset
ARM: 8955/1: virt: Relax arch timer version check during early boot
tee: optee: Fix compilation issue with nommu
airo: Fix possible info leak in AIROOLDIOCTL/SIOCDEVPRIVATE
airo: Add missing CAP_NET_ADMIN check in AIROOLDIOCTL/SIOCDEVPRIVATE
r8152: get default setting of WOL before initializing
ARM: dts: am43x-epos-evm: set data pin directions for spi0 and spi1
qlcnic: Fix CPU soft lockup while collecting firmware dump
powerpc/fsl/dts: add fsl,erratum-a011043
net/fsl: treat fsl,erratum-a011043
net: fsl/fman: rename IF_MODE_XGMII to IF_MODE_10G
seq_tab_next() should increase position index
l2t_seq_next should increase position index
net: Fix skb->csum update in inet_proto_csum_replace16().
btrfs: do not zero f_bavail if we have available space
perf report: Fix no libunwind compiled warning break s390 issue
mm/migrate.c: also overwrite error when it is bigger than zero
Linux 4.19.102
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Ia9b63c7932b66f469ab0e88467e1e07741408f0b
commit 3bc0bb36fa30e95ca829e9cf480e1ef7f7638333 upstream.
The test_cgcore_no_internal_process_constraint_on_threads selftest when
running with subsystem controlling noise triggers two warnings:
> [ 597.443115] WARNING: CPU: 1 PID: 28167 at kernel/cgroup/cgroup.c:3131 cgroup_apply_control_enable+0xe0/0x3f0
> [ 597.443413] WARNING: CPU: 1 PID: 28167 at kernel/cgroup/cgroup.c:3177 cgroup_apply_control_disable+0xa6/0x160
Both stem from a call to cgroup_type_write. The first warning was also
triggered by syzkaller.
When we're switching cgroup to threaded mode shortly after a subsystem
was disabled on it, we can see the respective subsystem css dying there.
The warning in cgroup_apply_control_enable is harmless in this case
since we're not adding new subsys anyway.
The warning in cgroup_apply_control_disable indicates an attempt to kill
css of recently disabled subsystem repeatedly.
The commit prevents these situations by making cgroup_type_write wait
for all dying csses to go away before re-applying subtree controls.
When at it, the locations of WARN_ON_ONCE calls are moved so that
warning is triggered only when we are about to misuse the dying css.
Reported-by: syzbot+5493b2a54d31d6aea629@syzkaller.appspotmail.com
Reported-by: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cgroup already uses floating point for percent[ile] numbers and there
are several controllers which want to take them as input. Add a
generic parse helper to handle inputs.
Update the interface convention documentation about the use of
percentage numbers. While at it, also clarify the default time unit.
Bug: 120440300
Signed-off-by: Tejun Heo <tj@kernel.org>
(cherry picked from commit a5e112e6424adb77d953eac20e6936b952fd6b32)
Signed-off-by: Qais Yousef <qais.yousef@arm.com>
Change-Id: Ic1fcf21d7955eb8edd2e8e91517bca6aef41694f
Signed-off-by: Quentin Perret <qperret@google.com>
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Merge 4.19.90 into android-4.19
Changes in 4.19.90
usb: gadget: configfs: Fix missing spin_lock_init()
usb: gadget: pch_udc: fix use after free
scsi: qla2xxx: Fix driver unload hang
media: venus: remove invalid compat_ioctl32 handler
USB: uas: honor flag to avoid CAPACITY16
USB: uas: heed CAPACITY_HEURISTICS
USB: documentation: flags on usb-storage versus UAS
usb: Allow USB device to be warm reset in suspended state
staging: rtl8188eu: fix interface sanity check
staging: rtl8712: fix interface sanity check
staging: gigaset: fix general protection fault on probe
staging: gigaset: fix illegal free on probe errors
staging: gigaset: add endpoint-type sanity check
usb: xhci: only set D3hot for pci device
xhci: Fix memory leak in xhci_add_in_port()
xhci: Increase STS_HALT timeout in xhci_suspend()
xhci: handle some XHCI_TRUST_TX_LENGTH quirks cases as default behaviour.
ARM: dts: pandora-common: define wl1251 as child node of mmc3
iio: adis16480: Add debugfs_reg_access entry
iio: humidity: hdc100x: fix IIO_HUMIDITYRELATIVE channel reporting
iio: imu: inv_mpu6050: fix temperature reporting using bad unit
USB: atm: ueagle-atm: add missing endpoint check
USB: idmouse: fix interface sanity checks
USB: serial: io_edgeport: fix epic endpoint lookup
usb: roles: fix a potential use after free
USB: adutux: fix interface sanity check
usb: core: urb: fix URB structure initialization function
usb: mon: Fix a deadlock in usbmon between mmap and read
tpm: add check after commands attribs tab allocation
mtd: spear_smi: Fix Write Burst mode
virtio-balloon: fix managed page counts when migrating pages between zones
usb: dwc3: pci: add ID for the Intel Comet Lake -H variant
usb: dwc3: gadget: Fix logical condition
usb: dwc3: ep0: Clear started flag on completion
phy: renesas: rcar-gen3-usb2: Fix sysfs interface of "role"
btrfs: check page->mapping when loading free space cache
btrfs: use refcount_inc_not_zero in kill_all_nodes
Btrfs: fix metadata space leak on fixup worker failure to set range as delalloc
Btrfs: fix negative subv_writers counter and data space leak after buffered write
btrfs: Avoid getting stuck during cyclic writebacks
btrfs: Remove btrfs_bio::flags member
Btrfs: send, skip backreference walking for extents with many references
btrfs: record all roots for rename exchange on a subvol
rtlwifi: rtl8192de: Fix missing code to retrieve RX buffer address
rtlwifi: rtl8192de: Fix missing callback that tests for hw release of buffer
rtlwifi: rtl8192de: Fix missing enable interrupt flag
lib: raid6: fix awk build warnings
ovl: fix corner case of non-unique st_dev;st_ino
ovl: relax WARN_ON() on rename to self
hwrng: omap - Fix RNG wait loop timeout
dm writecache: handle REQ_FUA
dm zoned: reduce overhead of backing device checks
workqueue: Fix spurious sanity check failures in destroy_workqueue()
workqueue: Fix pwq ref leak in rescuer_thread()
ASoC: rt5645: Fixed buddy jack support.
ASoC: rt5645: Fixed typo for buddy jack support.
ASoC: Jack: Fix NULL pointer dereference in snd_soc_jack_report
md: improve handling of bio with REQ_PREFLUSH in md_flush_request()
blk-mq: avoid sysfs buffer overflow with too many CPU cores
cgroup: pids: use atomic64_t for pids->limit
ar5523: check NULL before memcpy() in ar5523_cmd()
s390/mm: properly clear _PAGE_NOEXEC bit when it is not supported
media: bdisp: fix memleak on release
media: radio: wl1273: fix interrupt masking on release
media: cec.h: CEC_OP_REC_FLAG_ values were swapped
cpuidle: Do not unset the driver if it is there already
erofs: zero out when listxattr is called with no xattr
intel_th: Fix a double put_device() in error path
intel_th: pci: Add Ice Lake CPU support
intel_th: pci: Add Tiger Lake CPU support
PM / devfreq: Lock devfreq in trans_stat_show
cpufreq: powernv: fix stack bloat and hard limit on number of CPUs
ACPI / hotplug / PCI: Allocate resources directly under the non-hotplug bridge
ACPI: OSL: only free map once in osl.c
ACPI: bus: Fix NULL pointer check in acpi_bus_get_private_data()
ACPI: PM: Avoid attaching ACPI PM domain to certain devices
pinctrl: armada-37xx: Fix irq mask access in armada_37xx_irq_set_type()
pinctrl: samsung: Add of_node_put() before return in error path
pinctrl: samsung: Fix device node refcount leaks in Exynos wakeup controller init
pinctrl: samsung: Fix device node refcount leaks in S3C24xx wakeup controller init
pinctrl: samsung: Fix device node refcount leaks in init code
pinctrl: samsung: Fix device node refcount leaks in S3C64xx wakeup controller init
mmc: host: omap_hsmmc: add code for special init of wl1251 to get rid of pandora_wl1251_init_card
ARM: dts: omap3-tao3530: Fix incorrect MMC card detection GPIO polarity
ppdev: fix PPGETTIME/PPSETTIME ioctls
powerpc: Allow 64bit VDSO __kernel_sync_dicache to work across ranges >4GB
powerpc/xive: Prevent page fault issues in the machine crash handler
powerpc: Allow flush_icache_range to work across ranges >4GB
powerpc/xive: Skip ioremap() of ESB pages for LSI interrupts
video/hdmi: Fix AVI bar unpack
quota: Check that quota is not dirty before release
ext2: check err when partial != NULL
quota: fix livelock in dquot_writeback_dquots
ext4: Fix credit estimate for final inode freeing
reiserfs: fix extended attributes on the root directory
block: fix single range discard merge
scsi: zfcp: trace channel log even for FCP command responses
scsi: qla2xxx: Fix DMA unmap leak
scsi: qla2xxx: Fix hang in fcport delete path
scsi: qla2xxx: Fix session lookup in qlt_abort_work()
scsi: qla2xxx: Fix qla24xx_process_bidir_cmd()
scsi: qla2xxx: Always check the qla2x00_wait_for_hba_online() return value
scsi: qla2xxx: Fix message indicating vectors used by driver
scsi: qla2xxx: Fix SRB leak on switch command timeout
xhci: make sure interrupts are restored to correct state
usb: typec: fix use after free in typec_register_port()
omap: pdata-quirks: remove openpandora quirks for mmc3 and wl1251
scsi: lpfc: Cap NPIV vports to 256
scsi: lpfc: Correct code setting non existent bits in sli4 ABORT WQE
scsi: lpfc: Correct topology type reporting on G7 adapters
drbd: Change drbd_request_detach_interruptible's return type to int
e100: Fix passing zero to 'PTR_ERR' warning in e100_load_ucode_wait
pvcalls-front: don't return error when the ring is full
sch_cake: Correctly update parent qlen when splitting GSO packets
net/smc: do not wait under send_lock
net: hns3: clear pci private data when unload hns3 driver
net: hns3: change hnae3_register_ae_dev() to int
net: hns3: Check variable is valid before assigning it to another
scsi: hisi_sas: send primitive NOTIFY to SSP situation only
scsi: hisi_sas: Reject setting programmed minimum linkrate > 1.5G
x86/MCE/AMD: Turn off MC4_MISC thresholding on all family 0x15 models
x86/MCE/AMD: Carve out the MC4_MISC thresholding quirk
power: supply: cpcap-battery: Fix signed counter sample register
mlxsw: spectrum_router: Refresh nexthop neighbour when it becomes dead
media: vimc: fix component match compare
ath10k: fix fw crash by moving chip reset after napi disabled
regulator: 88pm800: fix warning same module names
powerpc: Avoid clang warnings around setjmp and longjmp
powerpc: Fix vDSO clock_getres()
ext4: work around deleting a file with i_nlink == 0 safely
firmware: qcom: scm: Ensure 'a0' status code is treated as signed
mm/shmem.c: cast the type of unmap_start to u64
rtc: disable uie before setting time and enable after
splice: only read in as much information as there is pipe buffer space
ext4: fix a bug in ext4_wait_for_tail_page_commit
mfd: rk808: Fix RK818 ID template
mm, thp, proc: report THP eligibility for each vma
s390/smp,vdso: fix ASCE handling
blk-mq: make sure that line break can be printed
workqueue: Fix missing kfree(rescuer) in destroy_workqueue()
perf callchain: Fix segfault in thread__resolve_callchain_sample()
gre: refetch erspan header from skb->data after pskb_may_pull()
firmware: arm_scmi: Avoid double free in error flow
sunrpc: fix crash when cache_head become valid before update
net/mlx5e: Fix SFF 8472 eeprom length
leds: trigger: netdev: fix handling on interface rename
PCI: rcar: Fix missing MACCTLR register setting in initialization sequence
gfs2: fix glock reference problem in gfs2_trans_remove_revoke
of: overlay: add_changeset_property() memory leak
kernel/module.c: wakeup processes in module_wq on module unload
cifs: Fix potential softlockups while refreshing DFS cache
gpiolib: acpi: Add Terra Pad 1061 to the run_edge_events_on_boot_blacklist
raid5: need to set STRIPE_HANDLE for batch head
scsi: qla2xxx: Change discovery state before PLOGI
iio: imu: mpu6050: add missing available scan masks
idr: Fix idr_get_next_ul race with idr_remove
scsi: zorro_esp: Limit DMA transfers to 65536 bytes (except on Fastlane)
of: unittest: fix memory leak in attach_node_and_children
Linux 4.19.90
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: I790291e9f3d3c8dd3f53e4387de25ff272ad4f39
commit a713af394cf382a30dd28a1015cbe572f1b9ca75 upstream.
Because pids->limit can be changed concurrently (but we don't want to
take a lock because it would be needlessly expensive), use atomic64_ts
instead.
Fixes: commit 49b786ea14 ("cgroup: implement the PIDs subsystem")
Cc: stable@vger.kernel.org # v4.3+
Signed-off-by: Aleksa Sarai <cyphar@cyphar.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.19.66 into android-4.19
Changes in 4.19.66
scsi: fcoe: Embed fc_rport_priv in fcoe_rport structure
gcc-9: don't warn about uninitialized variable
driver core: Establish order of operations for device_add and device_del via bitflag
drivers/base: Introduce kill_device()
libnvdimm/bus: Prevent duplicate device_unregister() calls
libnvdimm/region: Register badblocks before namespaces
libnvdimm/bus: Prepare the nd_ioctl() path to be re-entrant
libnvdimm/bus: Fix wait_nvdimm_bus_probe_idle() ABBA deadlock
HID: wacom: fix bit shift for Cintiq Companion 2
HID: Add quirk for HP X1200 PIXART OEM mouse
IB: directly cast the sockaddr union to aockaddr
atm: iphase: Fix Spectre v1 vulnerability
bnx2x: Disable multi-cos feature.
ife: error out when nla attributes are empty
ip6_gre: reload ipv6h in prepare_ip6gre_xmit_ipv6
ip6_tunnel: fix possible use-after-free on xmit
ipip: validate header length in ipip_tunnel_xmit
mlxsw: spectrum: Fix error path in mlxsw_sp_module_init()
mvpp2: fix panic on module removal
mvpp2: refactor MTU change code
net: bridge: delete local fdb on device init failure
net: bridge: mcast: don't delete permanent entries when fast leave is enabled
net: fix ifindex collision during namespace removal
net/mlx5e: always initialize frag->last_in_page
net/mlx5: Use reversed order when unregister devices
net: phylink: Fix flow control for fixed-link
net: qualcomm: rmnet: Fix incorrect UL checksum offload logic
net: sched: Fix a possible null-pointer dereference in dequeue_func()
net sched: update vlan action for batched events operations
net: sched: use temporary variable for actions indexes
net/smc: do not schedule tx_work in SMC_CLOSED state
NFC: nfcmrvl: fix gpio-handling regression
ocelot: Cancel delayed work before wq destruction
tipc: compat: allow tipc commands without arguments
tun: mark small packets as owned by the tap sock
net/mlx5: Fix modify_cq_in alignment
net/mlx5e: Prevent encap flow counter update async to user query
r8169: don't use MSI before RTL8168d
compat_ioctl: pppoe: fix PPPOEIOCSFWD handling
cgroup: Call cgroup_release() before __exit_signal()
cgroup: Implement css_task_iter_skip()
cgroup: Include dying leaders with live threads in PROCS iterations
cgroup: css_task_iter_skip()'d iterators must be advanced before accessed
cgroup: Fix css_task_iter_advance_css_set() cset skip condition
spi: bcm2835: Fix 3-wire mode if DMA is enabled
Linux 4.19.66
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Change-Id: Id33ce169af8bf14a3791040b4cf923832ce84f6c
commit c596687a008b579c503afb7a64fcacc7270fae9e upstream.
While adding handling for dying task group leaders c03cd7738a83
("cgroup: Include dying leaders with live threads in PROCS
iterations") added an inverted cset skip condition to
css_task_iter_advance_css_set(). It should skip cset if it's
completely empty but was incorrectly testing for the inverse condition
for the dying_tasks list. Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Fixes: c03cd7738a83 ("cgroup: Include dying leaders with live threads in PROCS iterations")
Reported-by: syzbot+d4bba5ccd4f9a2a68681@syzkaller.appspotmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit cee0c33c546a93957a52ae9ab6bebadbee765ec5 upstream.
b636fd38dc40 ("cgroup: Implement css_task_iter_skip()") introduced
css_task_iter_skip() which is used to fix task iterations skipping
dying threadgroup leaders with live threads. Skipping is implemented
as a subportion of full advancing but css_task_iter_next() forgot to
fully advance a skipped iterator before determining the next task to
visit causing it to return invalid task pointers.
Fix it by making css_task_iter_next() fully advance the iterator if it
has been skipped since the previous iteration.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: syzbot
Link: http://lkml.kernel.org/r/00000000000097025d058a7fd785@google.com
Fixes: b636fd38dc40 ("cgroup: Implement css_task_iter_skip()")
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit c03cd7738a83b13739f00546166969342c8ff014 upstream.
CSS_TASK_ITER_PROCS currently iterates live group leaders; however,
this means that a process with dying leader and live threads will be
skipped. IOW, cgroup.procs might be empty while cgroup.threads isn't,
which is confusing to say the least.
Fix it by making cset track dying tasks and include dying leaders with
live threads in PROCS iteration.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-and-tested-by: Topi Miettinen <toiwoton@gmail.com>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
commit b636fd38dc40113f853337a7d2a6885ad23b8811 upstream.
When a task is moved out of a cset, task iterators pointing to the
task are advanced using the normal css_task_iter_advance() call. This
is fine but we'll be tracking dying tasks on csets and thus moving
tasks from cset->tasks to (to be added) cset->dying_tasks. When we
remove a task from cset->tasks, if we advance the iterators, they may
move over to the next cset before we had the chance to add the task
back on the dying list, which can allow the task to escape iteration.
This patch separates out skipping from advancing. Skipping only moves
the affected iterators to the next pointer rather than fully advancing
it and the following advancing will recognize that the cursor has
already been moved forward and do the rest of advancing. This ensures
that when a task moves from one list to another in its cset, as long
as it moves in the right direction, it's always visible to iteration.
This doesn't cause any visible behavior changes.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge 4.19.58 into android-4.19
Changes in 4.19.58
Bluetooth: Fix faulty expression for minimum encryption key size check
block: Fix a NULL pointer dereference in generic_make_request()
md/raid0: Do not bypass blocking queue entered for raid0 bios
netfilter: nf_flow_table: ignore DF bit setting
netfilter: nft_flow_offload: set liberal tracking mode for tcp
netfilter: nft_flow_offload: don't offload when sequence numbers need adjustment
netfilter: nft_flow_offload: IPCB is only valid for ipv4 family
ASoC : cs4265 : readable register too low
ASoC: ak4458: add return value for ak4458_probe
ASoC: soc-pcm: BE dai needs prepare when pause release after resume
ASoC: ak4458: rstn_control - return a non-zero on error only
spi: bitbang: Fix NULL pointer dereference in spi_unregister_master
drm/mediatek: fix unbind functions
drm/mediatek: unbind components in mtk_drm_unbind()
drm/mediatek: call drm_atomic_helper_shutdown() when unbinding driver
drm/mediatek: clear num_pipes when unbind driver
drm/mediatek: call mtk_dsi_stop() after mtk_drm_crtc_atomic_disable()
ASoC: max98090: remove 24-bit format support if RJ is 0
ASoC: sun4i-i2s: Fix sun8i tx channel offset mask
ASoC: sun4i-i2s: Add offset to RX channel select
x86/CPU: Add more Icelake model numbers
usb: gadget: fusb300_udc: Fix memory leak of fusb300->ep[i]
usb: gadget: udc: lpc32xx: allocate descriptor with GFP_ATOMIC
ALSA: hdac: fix memory release for SST and SOF drivers
SoC: rt274: Fix internal jack assignment in set_jack callback
scsi: hpsa: correct ioaccel2 chaining
drm: panel-orientation-quirks: Add quirk for GPD pocket2
drm: panel-orientation-quirks: Add quirk for GPD MicroPC
platform/x86: asus-wmi: Only Tell EC the OS will handle display hotkeys from asus_nb_wmi
platform/x86: intel-vbtn: Report switch events when event wakes device
platform/x86: mlx-platform: Fix parent device in i2c-mux-reg device registration
platform/mellanox: mlxreg-hotplug: Add devm_free_irq call to remove flow
i2c: pca-platform: Fix GPIO lookup code
cpuset: restore sanity to cpuset_cpus_allowed_fallback()
scripts/decode_stacktrace.sh: prefix addr2line with $CROSS_COMPILE
mm/mlock.c: change count_mm_mlocked_page_nr return type
tracing: avoid build warning with HAVE_NOP_MCOUNT
module: Fix livepatch/ftrace module text permissions race
ftrace: Fix NULL pointer dereference in free_ftrace_func_mapper()
drm/i915/dmc: protect against reading random memory
ptrace: Fix ->ptracer_cred handling for PTRACE_TRACEME
crypto: user - prevent operating on larval algorithms
crypto: cryptd - Fix skcipher instance memory leak
ALSA: seq: fix incorrect order of dest_client/dest_ports arguments
ALSA: firewire-lib/fireworks: fix miss detection of received MIDI messages
ALSA: line6: Fix write on zero-sized buffer
ALSA: usb-audio: fix sign unintended sign extension on left shifts
ALSA: hda/realtek: Add quirks for several Clevo notebook barebones
ALSA: hda/realtek - Change front mic location for Lenovo M710q
lib/mpi: Fix karactx leak in mpi_powm
fs/userfaultfd.c: disable irqs for fault_pending and event locks
tracing/snapshot: Resize spare buffer if size changed
ARM: dts: armada-xp-98dx3236: Switch to armada-38x-uart serial node
arm64: kaslr: keep modules inside module region when KASAN is enabled
drm/amd/powerplay: use hardware fan control if no powerplay fan table
drm/amdgpu/gfx9: use reset default for PA_SC_FIFO_SIZE
drm/etnaviv: add missing failure path to destroy suballoc
drm/imx: notify drm core before sending event during crtc disable
drm/imx: only send event on crtc disable if kept disabled
ftrace/x86: Remove possible deadlock between register_kprobe() and ftrace_run_update_code()
mm/vmscan.c: prevent useless kswapd loops
btrfs: Ensure replaced device doesn't have pending chunk allocation
tty: rocket: fix incorrect forward declaration of 'rp_init()'
mlxsw: spectrum: Handle VLAN device unlinking
net/smc: move unhash before release of clcsock
media: s5p-mfc: fix incorrect bus assignment in virtual child device
drm/fb-helper: generic: Don't take module ref for fbcon
f2fs: don't access node/meta inode mapping after iput
mac80211: mesh: fix missing unlock on error in table_path_del()
scsi: tcmu: fix use after free
selftests: fib_rule_tests: Fix icmp proto with ipv6
x86/boot/compressed/64: Do not corrupt EDX on EFER.LME=1 setting
net: hns: Fixes the missing put_device in positive leg for roce reset
ALSA: hda: Initialize power_state field properly
rds: Fix warning.
ip6: fix skb leak in ip6frag_expire_frag_queue()
netfilter: ipv6: nf_defrag: fix leakage of unqueued fragments
sc16is7xx: move label 'err_spi' to correct section
net: hns: fix unsigned comparison to less than zero
bpf: fix bpf_jit_limit knob for PAGE_SIZE >= 64K
netfilter: ipv6: nf_defrag: accept duplicate fragments again
KVM: x86: degrade WARN to pr_warn_ratelimited
KVM: LAPIC: Fix pending interrupt in IRR blocked by software disable LAPIC
nfsd: Fix overflow causing non-working mounts on 1 TB machines
svcrdma: Ignore source port when computing DRC hash
MIPS: Fix bounds check virt_addr_valid
MIPS: Add missing EHB in mtc0 -> mfc0 sequence.
MIPS: have "plain" make calls build dtbs for selected platforms
dmaengine: qcom: bam_dma: Fix completed descriptors count
dmaengine: imx-sdma: remove BD_INTR for channel0
Linux 4.19.58
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit d477f8c202d1f0d4791ab1263ca7657bbe5cf79e ]
In the case that a process is constrained by taskset(1) (i.e.
sched_setaffinity(2)) to a subset of available cpus, and all of those are
subsequently offlined, the scheduler will set tsk->cpus_allowed to
the current value of task_cs(tsk)->effective_cpus.
This is done via a call to do_set_cpus_allowed() in the context of
cpuset_cpus_allowed_fallback() made by the scheduler when this case is
detected. This is the only call made to cpuset_cpus_allowed_fallback()
in the latest mainline kernel.
However, this is not sane behavior.
I will demonstrate this on a system running the latest upstream kernel
with the following initial configuration:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,fffffff
Cpus_allowed_list: 0-63
(Where cpus 32-63 are provided via smt.)
If we limit our current shell process to cpu2 only and then offline it
and reonline it:
# taskset -p 4 $$
pid 2272's current affinity mask: ffffffffffffffff
pid 2272's new affinity mask: 4
# echo off > /sys/devices/system/cpu/cpu2/online
# dmesg | tail -3
[ 2195.866089] process 2272 (bash) no longer affine to cpu2
[ 2195.872700] IRQ 114: no longer affine to CPU2
[ 2195.879128] smpboot: CPU 2 is now offline
# echo on > /sys/devices/system/cpu/cpu2/online
# dmesg | tail -1
[ 2617.043572] smpboot: Booting Node 0 Processor 2 APIC 0x4
We see that our current process now has an affinity mask containing
every cpu available on the system _except_ the one we originally
constrained it to:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,fffffffb
Cpus_allowed_list: 0-1,3-63
This is not sane behavior, as the scheduler can now not only place the
process on previously forbidden cpus, it can't even schedule it on
the cpu it was originally constrained to!
Other cases result in even more exotic affinity masks. Take for instance
a process with an affinity mask containing only cpus provided by smt at
the moment that smt is toggled, in a configuration such as the following:
# taskset -p f000000000 $$
# grep -i cpu /proc/$$/status
Cpus_allowed: 000000f0,00000000
Cpus_allowed_list: 36-39
A double toggle of smt results in the following behavior:
# echo off > /sys/devices/system/cpu/smt/control
# echo on > /sys/devices/system/cpu/smt/control
# grep -i cpus /proc/$$/status
Cpus_allowed: ffffff00,ffffffff
Cpus_allowed_list: 0-31,40-63
This is even less sane than the previous case, as the new affinity mask
excludes all smt-provided cpus with ids less than those that were
previously in the affinity mask, as well as those that were actually in
the mask.
With this patch applied, both of these cases end in the following state:
# grep -i cpu /proc/$$/status
Cpus_allowed: ffffffff,ffffffff
Cpus_allowed_list: 0-63
The original policy is discarded. Though not ideal, it is the simplest way
to restore sanity to this fallback case without reinventing the cpuset
wheel that rolls down the kernel just fine in cgroup v2. A user who wishes
for the previous affinity mask to be restored in this fallback case can use
that mechanism instead.
This patch modifies scheduler behavior by instead resetting the mask to
task_cs(tsk)->cpus_allowed by default, and cpu_possible mask in legacy
mode. I tested the cases above on both modes.
Note that the scheduler uses this fallback mechanism if and only if
_every_ other valid avenue has been traveled, and it is the last resort
before calling BUG().
Suggested-by: Waiman Long <longman@redhat.com>
Suggested-by: Phil Auld <pauld@redhat.com>
Signed-off-by: Joel Savitz <jsavitz@redhat.com>
Acked-by: Phil Auld <pauld@redhat.com>
Acked-by: Waiman Long <longman@redhat.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
update_cpumask had a special case for empty buf which
did not update cpus_requested. This change reduces
differences (only to parsing) in empty/non-empty codepaths
to make them consistent.
Bug: 120444281
Fixes: 4803def4e0b2 ("ANDROID: cpuset: Make cpusets restore on hotplug")
Test: check that writes to /dev/cpuset/background/tasks
Test: work as expected, e.g.:
Test: echo $$ > /dev/cpuset/background/tasks
Test: echo > /dev/cpuset/background/tasks
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I49d320ea046636ec38bd23f053317abc59f64f8e
alloc_trial_cpuset missed allocation of the alloc_trial_cpuset
field which caused it to be shared from the base cs provided.
Once update_cpumask parsed buf into cpus_requested and updated
cpus_allowed, the result were never written to cs because
cs and trialcs shared the same pointer to cpus_requested and
cpus_requested always matched to itself and no updates were
written. This caused cpus_requested to be non-empty and
cpus_allowed empty.
This issue occurs only with CONFIG_CPUMASK_OFFSTACK enabled
(e.g. via CONFIG_MAXSMP).
Bug: 134051784
Bug: 120444281
Fixes: 4803def4e0b2 ("ANDROID: cpuset: Make cpusets restore on hotplug")
Test: enable CONFIG_CPUSETS, boot and check logcat that
Test: libprocessgroup does not fail with something similar to
Test: AddTidToCgroup failed to write '2354'; fd=93: No space left on device
Signed-off-by: Roman Kiryanov <rkir@google.com>
Change-Id: I866836b5c0acfde8349c250a510ee89d8d37cb8e
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Merge 4.19.47 into android-4.19
Changes in 4.19.47
x86: Hide the int3_emulate_call/jmp functions from UML
ext4: do not delete unlinked inode from orphan list on failed truncate
ext4: wait for outstanding dio during truncate in nojournal mode
f2fs: Fix use of number of devices
KVM: x86: fix return value for reserved EFER
bio: fix improper use of smp_mb__before_atomic()
sbitmap: fix improper use of smp_mb__before_atomic()
Revert "scsi: sd: Keep disk read-only when re-reading partition"
crypto: vmx - CTR: always increment IV as quadword
mmc: sdhci-iproc: cygnus: Set NO_HISPD bit to fix HS50 data hold time problem
mmc: sdhci-iproc: Set NO_HISPD bit to fix HS50 data hold time problem
kvm: svm/avic: fix off-by-one in checking host APIC ID
libnvdimm/pmem: Bypass CONFIG_HARDENED_USERCOPY overhead
arm64/kernel: kaslr: reduce module randomization range to 2 GB
arm64/iommu: handle non-remapped addresses in ->mmap and ->get_sgtable
gfs2: Fix sign extension bug in gfs2_update_stats
btrfs: don't double unlock on error in btrfs_punch_hole
Btrfs: do not abort transaction at btrfs_update_root() after failure to COW path
Btrfs: avoid fallback to transaction commit during fsync of files with holes
Btrfs: fix race between ranged fsync and writeback of adjacent ranges
btrfs: sysfs: Fix error path kobject memory leak
btrfs: sysfs: don't leak memory when failing add fsid
udlfb: fix some inconsistent NULL checking
fbdev: fix divide error in fb_var_to_videomode
NFSv4.2 fix unnecessary retry in nfs4_copy_file_range
NFSv4.1 fix incorrect return value in copy_file_range
bpf: add bpf_jit_limit knob to restrict unpriv allocations
brcmfmac: assure SSID length from firmware is limited
brcmfmac: add subtype check for event handling in data path
arm64: errata: Add workaround for Cortex-A76 erratum #1463225
btrfs: honor path->skip_locking in backref code
ovl: relax WARN_ON() for overlapping layers use case
fbdev: fix WARNING in __alloc_pages_nodemask bug
media: cpia2: Fix use-after-free in cpia2_exit
media: serial_ir: Fix use-after-free in serial_ir_init_module
media: vb2: add waiting_in_dqbuf flag
media: vivid: use vfree() instead of kfree() for dev->bitmap_cap
ssb: Fix possible NULL pointer dereference in ssb_host_pcmcia_exit
bpf: devmap: fix use-after-free Read in __dev_map_entry_free
batman-adv: mcast: fix multicast tt/tvlv worker locking
at76c50x-usb: Don't register led_trigger if usb_register_driver failed
acct_on(): don't mess with freeze protection
Revert "btrfs: Honour FITRIM range constraints during free space trim"
gfs2: Fix lru_count going negative
cxgb4: Fix error path in cxgb4_init_module
NFS: make nfs_match_client killable
IB/hfi1: Fix WQ_MEM_RECLAIM warning
gfs2: Fix occasional glock use-after-free
mmc: core: Verify SD bus width
tools/bpf: fix perf build error with uClibc (seen on ARC)
selftests/bpf: set RLIMIT_MEMLOCK properly for test_libbpf_open.c
bpftool: exclude bash-completion/bpftool from .gitignore pattern
dmaengine: tegra210-dma: free dma controller in remove()
net: ena: gcc 8: fix compilation warning
hv_netvsc: fix race that may miss tx queue wakeup
Bluetooth: Ignore CC events not matching the last HCI command
pinctrl: zte: fix leaked of_node references
ASoC: Intel: kbl_da7219_max98357a: Map BTN_0 to KEY_PLAYPAUSE
usb: dwc2: gadget: Increase descriptors count for ISOC's
usb: dwc3: move synchronize_irq() out of the spinlock protected block
ASoC: hdmi-codec: unlock the device on startup errors
powerpc/perf: Return accordingly on invalid chip-id in
powerpc/boot: Fix missing check of lseek() return value
powerpc/perf: Fix loop exit condition in nest_imc_event_init
ASoC: imx: fix fiq dependencies
spi: pxa2xx: fix SCR (divisor) calculation
brcm80211: potential NULL dereference in brcmf_cfg80211_vndr_cmds_dcmd_handler()
ACPI / property: fix handling of data_nodes in acpi_get_next_subnode()
drm/nouveau/bar/nv50: ensure BAR is mapped
media: stm32-dcmi: return appropriate error codes during probe
ARM: vdso: Remove dependency with the arch_timer driver internals
arm64: Fix compiler warning from pte_unmap() with -Wunused-but-set-variable
powerpc/watchdog: Use hrtimers for per-CPU heartbeat
sched/cpufreq: Fix kobject memleak
scsi: qla2xxx: Fix a qla24xx_enable_msix() error path
scsi: qla2xxx: Fix abort handling in tcm_qla2xxx_write_pending()
scsi: qla2xxx: Avoid that lockdep complains about unsafe locking in tcm_qla2xxx_close_session()
scsi: qla2xxx: Fix hardirq-unsafe locking
x86/modules: Avoid breaking W^X while loading modules
Btrfs: fix data bytes_may_use underflow with fallocate due to failed quota reserve
btrfs: fix panic during relocation after ENOSPC before writeback happens
btrfs: Don't panic when we can't find a root key
iwlwifi: pcie: don't crash on invalid RX interrupt
rtc: 88pm860x: prevent use-after-free on device remove
rtc: stm32: manage the get_irq probe defer case
scsi: qedi: Abort ep termination if offload not scheduled
s390/kexec_file: Fix detection of text segment in ELF loader
sched/nohz: Run NOHZ idle load balancer on HK_FLAG_MISC CPUs
w1: fix the resume command API
s390: qeth: address type mismatch warning
dmaengine: pl330: _stop: clear interrupt status
mac80211/cfg80211: update bss channel on channel switch
libbpf: fix samples/bpf build failure due to undefined UINT32_MAX
slimbus: fix a potential NULL pointer dereference in of_qcom_slim_ngd_register
ASoC: fsl_sai: Update is_slave_mode with correct value
mwifiex: prevent an array overflow
rsi: Fix NULL pointer dereference in kmalloc
net: cw1200: fix a NULL pointer dereference
nvme: set 0 capacity if namespace block size exceeds PAGE_SIZE
nvme-rdma: fix a NULL deref when an admin connect times out
crypto: sun4i-ss - Fix invalid calculation of hash end
bcache: avoid potential memleak of list of journal_replay(s) in the CACHE_SYNC branch of run_cache_set
bcache: return error immediately in bch_journal_replay()
bcache: fix failure in journal relplay
bcache: add failure check to run_cache_set() for journal replay
bcache: avoid clang -Wunintialized warning
RDMA/cma: Consider scope_id while binding to ipv6 ll address
vfio-ccw: Do not call flush_workqueue while holding the spinlock
vfio-ccw: Release any channel program when releasing/removing vfio-ccw mdev
x86/build: Move _etext to actual end of .text
smpboot: Place the __percpu annotation correctly
x86/mm: Remove in_nmi() warning from 64-bit implementation of vmalloc_fault()
mm/uaccess: Use 'unsigned long' to placate UBSAN warnings on older GCC versions
Bluetooth: hci_qca: Give enough time to ROME controller to bootup.
HID: logitech-hidpp: use RAP instead of FAP to get the protocol version
pinctrl: pistachio: fix leaked of_node references
pinctrl: samsung: fix leaked of_node references
clk: rockchip: undo several noc and special clocks as critical on rk3288
perf/arm-cci: Remove broken race mitigation
dmaengine: at_xdmac: remove BUG_ON macro in tasklet
media: coda: clear error return value before picture run
media: ov6650: Move v4l2_clk_get() to ov6650_video_probe() helper
media: au0828: stop video streaming only when last user stops
media: ov2659: make S_FMT succeed even if requested format doesn't match
audit: fix a memory leak bug
media: stm32-dcmi: fix crash when subdev do not expose any formats
media: au0828: Fix NULL pointer dereference in au0828_analog_stream_enable()
media: pvrusb2: Prevent a buffer overflow
iio: adc: stm32-dfsdm: fix unmet direct dependencies detected
block: fix use-after-free on gendisk
powerpc/numa: improve control of topology updates
powerpc/64: Fix booting large kernels with STRICT_KERNEL_RWX
random: fix CRNG initialization when random.trust_cpu=1
random: add a spinlock_t to struct batched_entropy
cgroup: protect cgroup->nr_(dying_)descendants by css_set_lock
sched/core: Check quota and period overflow at usec to nsec conversion
sched/rt: Check integer overflow at usec to nsec conversion
sched/core: Handle overflow in cpu_shares_write_u64
staging: vc04_services: handle kzalloc failure
drm/msm: a5xx: fix possible object reference leak
irq_work: Do not raise an IPI when queueing work on the local CPU
thunderbolt: Take domain lock in switch sysfs attribute callbacks
s390/qeth: handle error from qeth_update_from_chp_desc()
USB: core: Don't unbind interfaces following device reset failure
x86/irq/64: Limit IST stack overflow check to #DB stack
drm: etnaviv: avoid DMA API warning when importing buffers
phy: sun4i-usb: Make sure to disable PHY0 passby for peripheral mode
phy: mapphone-mdm6600: add gpiolib dependency
i40e: Able to add up to 16 MAC filters on an untrusted VF
i40e: don't allow changes to HW VLAN stripping on active port VLANs
ACPI/IORT: Reject platform device creation on NUMA node mapping failure
arm64: vdso: Fix clock_getres() for CLOCK_REALTIME
RDMA/cxgb4: Fix null pointer dereference on alloc_skb failure
perf/x86/msr: Add Icelake support
perf/x86/intel/rapl: Add Icelake support
perf/x86/intel/cstate: Add Icelake support
hwmon: (vt1211) Use request_muxed_region for Super-IO accesses
hwmon: (smsc47m1) Use request_muxed_region for Super-IO accesses
hwmon: (smsc47b397) Use request_muxed_region for Super-IO accesses
hwmon: (pc87427) Use request_muxed_region for Super-IO accesses
hwmon: (f71805f) Use request_muxed_region for Super-IO accesses
scsi: libsas: Do discovery on empty PHY to update PHY info
mmc: core: make pwrseq_emmc (partially) support sleepy GPIO controllers
mmc_spi: add a status check for spi_sync_locked
mmc: sdhci-of-esdhc: add erratum eSDHC5 support
mmc: sdhci-of-esdhc: add erratum A-009204 support
mmc: sdhci-of-esdhc: add erratum eSDHC-A001 and A-008358 support
drm/amdgpu: fix old fence check in amdgpu_fence_emit
PM / core: Propagate dev->power.wakeup_path when no callbacks
clk: rockchip: Fix video codec clocks on rk3288
extcon: arizona: Disable mic detect if running when driver is removed
clk: rockchip: Make rkpwm a critical clock on rk3288
s390: zcrypt: initialize variables before_use
x86/microcode: Fix the ancient deprecated microcode loading method
s390/mm: silence compiler warning when compiling without CONFIG_PGSTE
s390: cio: fix cio_irb declaration
selftests: cgroup: fix cleanup path in test_memcg_subtree_control()
qmi_wwan: Add quirk for Quectel dynamic config
cpufreq: ppc_cbe: fix possible object reference leak
cpufreq/pasemi: fix possible object reference leak
cpufreq: pmac32: fix possible object reference leak
cpufreq: kirkwood: fix possible object reference leak
block: sed-opal: fix IOC_OPAL_ENABLE_DISABLE_MBR
x86/build: Keep local relocations with ld.lld
drm/pl111: fix possible object reference leak
iio: ad_sigma_delta: Properly handle SPI bus locking vs CS assertion
iio: hmc5843: fix potential NULL pointer dereferences
iio: common: ssp_sensors: Initialize calculated_time in ssp_common_process_data
iio: adc: ti-ads7950: Fix improper use of mlock
selftests/bpf: ksym_search won't check symbols exists
rtlwifi: fix a potential NULL pointer dereference
mwifiex: Fix mem leak in mwifiex_tm_cmd
brcmfmac: fix missing checks for kmemdup
b43: shut up clang -Wuninitialized variable warning
brcmfmac: convert dev_init_lock mutex to completion
brcmfmac: fix WARNING during USB disconnect in case of unempty psq
brcmfmac: fix race during disconnect when USB completion is in progress
brcmfmac: fix Oops when bringing up interface during USB disconnect
rtc: xgene: fix possible race condition
rtlwifi: fix potential NULL pointer dereference
scsi: ufs: Fix regulator load and icc-level configuration
scsi: ufs: Avoid configuring regulator with undefined voltage range
drm/panel: otm8009a: Add delay at the end of initialization
arm64: cpu_ops: fix a leaked reference by adding missing of_node_put
wil6210: fix return code of wmi_mgmt_tx and wmi_mgmt_tx_ext
x86/uaccess, ftrace: Fix ftrace_likely_update() vs. SMAP
x86/uaccess, signal: Fix AC=1 bloat
x86/ia32: Fix ia32_restore_sigcontext() AC leak
x86/uaccess: Fix up the fixup
chardev: add additional check for minor range overlap
RDMA/hns: Fix bad endianess of port_pd variable
sh: sh7786: Add explicit I/O cast to sh7786_mm_sel()
HID: core: move Usage Page concatenation to Main item
ASoC: eukrea-tlv320: fix a leaked reference by adding missing of_node_put
ASoC: fsl_utils: fix a leaked reference by adding missing of_node_put
cxgb3/l2t: Fix undefined behaviour
HID: logitech-hidpp: change low battery level threshold from 31 to 30 percent
spi: tegra114: reset controller on probe
kobject: Don't trigger kobject_uevent(KOBJ_REMOVE) twice.
media: video-mux: fix null pointer dereferences
media: wl128x: prevent two potential buffer overflows
media: gspca: Kill URBs on USB device disconnect
efifb: Omit memory map check on legacy boot
thunderbolt: property: Fix a missing check of kzalloc
thunderbolt: Fix to check the return value of kmemdup
timekeeping: Force upper bound for setting CLOCK_REALTIME
scsi: qedf: Add missing return in qedf_post_io_req() in the fcport offload check
virtio_console: initialize vtermno value for ports
tty: ipwireless: fix missing checks for ioremap
overflow: Fix -Wtype-limits compilation warnings
x86/mce: Fix machine_check_poll() tests for error types
rcutorture: Fix cleanup path for invalid torture_type strings
x86/mce: Handle varying MCA bank counts
rcuperf: Fix cleanup path for invalid perf_type strings
usb: core: Add PM runtime calls to usb_hcd_platform_shutdown
scsi: qla4xxx: avoid freeing unallocated dma memory
scsi: lpfc: avoid uninitialized variable warning
selinux: avoid uninitialized variable warning
batman-adv: allow updating DAT entry timeouts on incoming ARP Replies
dmaengine: tegra210-adma: use devm_clk_*() helpers
hwrng: omap - Set default quality
thunderbolt: Fix to check return value of ida_simple_get
thunderbolt: Fix to check for kmemdup failure
drm/amd/display: fix releasing planes when exiting odm
thunderbolt: property: Fix a NULL pointer dereference
e1000e: Disable runtime PM on CNP+
tinydrm/mipi-dbi: Use dma-safe buffers for all SPI transfers
igb: Exclude device from suspend direct complete optimization
media: si2165: fix a missing check of return value
media: dvbsky: Avoid leaking dvb frontend
media: m88ds3103: serialize reset messages in m88ds3103_set_frontend
media: staging: davinci_vpfe: disallow building with COMPILE_TEST
drm/amd/display: Fix Divide by 0 in memory calculations
drm/amd/display: Set stream->mode_changed when connectors change
scsi: ufs: fix a missing check of devm_reset_control_get
media: vimc: stream: fix thread state before sleep
media: gspca: do not resubmit URBs when streaming has stopped
media: go7007: avoid clang frame overflow warning with KASAN
media: vimc: zero the media_device on probe
scsi: lpfc: Fix FDMI manufacturer attribute value
scsi: lpfc: Fix fc4type information for FDMI
media: saa7146: avoid high stack usage with clang
scsi: lpfc: Fix SLI3 commands being issued on SLI4 devices
spi : spi-topcliff-pch: Fix to handle empty DMA buffers
drm/omap: dsi: Fix PM for display blank with paired dss_pll calls
spi: rspi: Fix sequencer reset during initialization
spi: imx: stop buffer overflow in RX FIFO flush
spi: Fix zero length xfer bug
ASoC: davinci-mcasp: Fix clang warning without CONFIG_PM
drm/v3d: Handle errors from IRQ setup.
drm/drv: Hold ref on parent device during drm_device lifetime
drm: Wake up next in drm_read() chain if we are forced to putback the event
drm/sun4i: dsi: Change the start delay calculation
vfio-ccw: Prevent quiesce function going into an infinite loop
drm/sun4i: dsi: Enforce boundaries on the start delay
NFS: Fix a double unlock from nfs_match,get_client
Linux 4.19.47
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 4dcabece4c3a9f9522127be12cc12cc120399b2f ]
The number of descendant cgroups and the number of dying
descendant cgroups are currently synchronized using the cgroup_mutex.
The number of descendant cgroups will be required by the cgroup v2
freezer, which will use it to determine if a cgroup is frozen
(depending on total number of descendants and number of frozen
descendants). It's not always acceptable to grab the cgroup_mutex,
especially from quite hot paths (e.g. exit()).
To avoid this, let's additionally synchronize these counters using
the css_set_lock.
So, it's safe to read these counters with either cgroup_mutex or
css_set_lock locked, and for changing both locks should be acquired.
Signed-off-by: Roman Gushchin <guro@fb.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: kernel-team@fb.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.19.34 into android-4.19
Changes in 4.19.34
arm64: debug: Don't propagate UNKNOWN FAR into si_code for debug signals
ext4: cleanup bh release code in ext4_ind_remove_space()
tty/serial: atmel: Add is_half_duplex helper
tty/serial: atmel: RS485 HD w/DMA: enable RX after TX is stopped
CIFS: fix POSIX lock leak and invalid ptr deref
h8300: use cc-cross-prefix instead of hardcoding h8300-unknown-linux-
f2fs: fix to adapt small inline xattr space in __find_inline_xattr()
f2fs: fix to avoid deadlock in f2fs_read_inline_dir()
tracing: kdb: Fix ftdump to not sleep
net/mlx5: Avoid panic when setting vport rate
net/mlx5: Avoid panic when setting vport mac, getting vport config
gpio: gpio-omap: fix level interrupt idling
include/linux/relay.h: fix percpu annotation in struct rchan
sysctl: handle overflow for file-max
net: stmmac: Avoid sometimes uninitialized Clang warnings
enic: fix build warning without CONFIG_CPUMASK_OFFSTACK
libbpf: force fixdep compilation at the start of the build
scsi: hisi_sas: Set PHY linkrate when disconnected
scsi: hisi_sas: Fix a timeout race of driver internal and SMP IO
iio: adc: fix warning in Qualcomm PM8xxx HK/XOADC driver
x86/hyperv: Fix kernel panic when kexec on HyperV
perf c2c: Fix c2c report for empty numa node
mm/sparse: fix a bad comparison
mm/cma.c: cma_declare_contiguous: correct err handling
mm/page_ext.c: fix an imbalance with kmemleak
mm, swap: bounds check swap_info array accesses to avoid NULL derefs
mm,oom: don't kill global init via memory.oom.group
memcg: killed threads should not invoke memcg OOM killer
mm, mempolicy: fix uninit memory access
mm/vmalloc.c: fix kernel BUG at mm/vmalloc.c:512!
mm/slab.c: kmemleak no scan alien caches
ocfs2: fix a panic problem caused by o2cb_ctl
f2fs: do not use mutex lock in atomic context
fs/file.c: initialize init_files.resize_wait
page_poison: play nicely with KASAN
cifs: use correct format characters
dm thin: add sanity checks to thin-pool and external snapshot creation
f2fs: fix to check inline_xattr_size boundary correctly
cifs: Accept validate negotiate if server return NT_STATUS_NOT_SUPPORTED
cifs: Fix NULL pointer dereference of devname
netfilter: nf_tables: check the result of dereferencing base_chain->stats
netfilter: conntrack: tcp: only close if RST matches exact sequence
jbd2: fix invalid descriptor block checksum
fs: fix guard_bio_eod to check for real EOD errors
tools lib traceevent: Fix buffer overflow in arg_eval
PCI/PME: Fix hotplug/sysfs remove deadlock in pcie_pme_remove()
wil6210: check null pointer in _wil_cfg80211_merge_extra_ies
mt76: fix a leaked reference by adding a missing of_node_put
crypto: crypto4xx - add missing of_node_put after of_device_is_available
crypto: cavium/zip - fix collision with generic cra_driver_name
usb: chipidea: Grab the (legacy) USB PHY by phandle first
powerpc/powernv/ioda: Fix locked_vm counting for memory used by IOMMU tables
scsi: core: replace GFP_ATOMIC with GFP_KERNEL in scsi_scan.c
kbuild: invoke syncconfig if include/config/auto.conf.cmd is missing
powerpc/xmon: Fix opcode being uninitialized in print_insn_powerpc
coresight: etm4x: Add support to enable ETMv4.2
serial: 8250_pxa: honor the port number from devicetree
ARM: 8840/1: use a raw_spinlock_t in unwind
iommu/io-pgtable-arm-v7s: Only kmemleak_ignore L2 tables
powerpc/hugetlb: Handle mmap_min_addr correctly in get_unmapped_area callback
btrfs: qgroup: Make qgroup async transaction commit more aggressive
mmc: omap: fix the maximum timeout setting
net: dsa: mv88e6xxx: Add lockdep classes to fix false positive splat
e1000e: Fix -Wformat-truncation warnings
mlxsw: spectrum: Avoid -Wformat-truncation warnings
platform/x86: ideapad-laptop: Fix no_hw_rfkill_list for Lenovo RESCUER R720-15IKBN
platform/mellanox: mlxreg-hotplug: Fix KASAN warning
loop: set GENHD_FL_NO_PART_SCAN after blkdev_reread_part()
IB/mlx4: Increase the timeout for CM cache
clk: fractional-divider: check parent rate only if flag is set
perf annotate: Fix getting source line failure
ASoC: qcom: Fix of-node refcount unbalance in qcom_snd_parse_of()
cpufreq: acpi-cpufreq: Report if CPU doesn't support boost technologies
efi: cper: Fix possible out-of-bounds access
s390/ism: ignore some errors during deregistration
scsi: megaraid_sas: return error when create DMA pool failed
scsi: fcoe: make use of fip_mode enum complete
drm/amd/display: Clear stream->mode_changed after commit
perf test: Fix failure of 'evsel-tp-sched' test on s390
mwifiex: don't advertise IBSS features without FW support
perf report: Don't shadow inlined symbol with different addr range
SoC: imx-sgtl5000: add missing put_device()
media: ov7740: fix runtime pm initialization
media: sh_veu: Correct return type for mem2mem buffer helpers
media: s5p-jpeg: Correct return type for mem2mem buffer helpers
media: rockchip/rga: Correct return type for mem2mem buffer helpers
media: s5p-g2d: Correct return type for mem2mem buffer helpers
media: mx2_emmaprp: Correct return type for mem2mem buffer helpers
media: mtk-jpeg: Correct return type for mem2mem buffer helpers
mt76: usb: do not run mt76u_queues_deinit twice
xen/gntdev: Do not destroy context while dma-bufs are in use
vfs: fix preadv64v2 and pwritev64v2 compat syscalls with offset == -1
HID: intel-ish-hid: avoid binding wrong ishtp_cl_device
cgroup, rstat: Don't flush subtree root unless necessary
jbd2: fix race when writing superblock
leds: lp55xx: fix null deref on firmware load failure
perf report: Add s390 diagnosic sampling descriptor size
iwlwifi: pcie: fix emergency path
ACPI / video: Refactor and fix dmi_is_desktop()
selftests: skip seccomp get_metadata test if not real root
kprobes: Prohibit probing on bsearch()
kprobes: Prohibit probing on RCU debug routine
netfilter: conntrack: fix cloned unconfirmed skb->_nfct race in __nf_conntrack_confirm
ARM: 8833/1: Ensure that NEON code always compiles with Clang
ARM: dts: meson8b: fix the Ethernet data line signals in eth_rgmii_pins
ALSA: PCM: check if ops are defined before suspending PCM
ath10k: fix shadow register implementation for WCN3990
usb: f_fs: Avoid crash due to out-of-scope stack ptr access
sched/topology: Fix percpu data types in struct sd_data & struct s_data
bcache: fix input overflow to cache set sysfs file io_error_halflife
bcache: fix input overflow to sequential_cutoff
bcache: fix potential div-zero error of writeback_rate_i_term_inverse
bcache: improve sysfs_strtoul_clamp()
genirq: Avoid summation loops for /proc/stat
net: marvell: mvpp2: fix stuck in-band SGMII negotiation
iw_cxgb4: fix srqidx leak during connection abort
net: phy: consider latched link-down status in polling mode
fbdev: fbmem: fix memory access if logo is bigger than the screen
cdrom: Fix race condition in cdrom_sysctl_register
drm: rcar-du: add missing of_node_put
drm/amd/display: Don't re-program planes for DPMS changes
drm/amd/display: Disconnect mpcc when changing tg
perf/aux: Make perf_event accessible to setup_aux()
e1000e: fix cyclic resets at link up with active tx
e1000e: Exclude device from suspend direct complete optimization
platform/x86: intel_pmc_core: Fix PCH IP sts reading
i2c: of: Try to find an I2C adapter matching the parent
staging: spi: mt7621: Add return code check on device_reset()
iwlwifi: mvm: fix RFH config command with >=10 CPUs
ASoC: fsl-asoc-card: fix object reference leaks in fsl_asoc_card_probe
sched/debug: Initialize sd_sysctl_cpus if !CONFIG_CPUMASK_OFFSTACK
efi/memattr: Don't bail on zero VA if it equals the region's PA
sched/core: Use READ_ONCE()/WRITE_ONCE() in move_queued_task()/task_rq_lock()
drm/vkms: Bugfix extra vblank frame
ARM: dts: lpc32xx: Remove leading 0x and 0s from bindings notation
efi/arm/arm64: Allow SetVirtualAddressMap() to be omitted
soc: qcom: gsbi: Fix error handling in gsbi_probe()
mt7601u: bump supported EEPROM version
ARM: 8830/1: NOMMU: Toggle only bits in EXC_RETURN we are really care of
ARM: avoid Cortex-A9 livelock on tight dmb loops
block, bfq: fix in-service-queue check for queue merging
bpf: fix missing prototype warnings
selftests/bpf: skip verifier tests for unsupported program types
powerpc/64s: Clear on-stack exception marker upon exception return
cgroup/pids: turn cgroup_subsys->free() into cgroup_subsys->release() to fix the accounting
backlight: pwm_bl: Use gpiod_get_value_cansleep() to get initial state
tty: increase the default flip buffer limit to 2*640K
powerpc/pseries: Perform full re-add of CPU for topology update post-migration
drm/amd/display: Enable vblank interrupt during CRC capture
ALSA: dice: add support for Solid State Logic Duende Classic/Mini
usb: dwc3: gadget: Fix OTG events when gadget driver isn't loaded
platform/x86: intel-hid: Missing power button release on some Dell models
perf script python: Use PyBytes for attr in trace-event-python
perf script python: Add trace_context extension module to sys.modules
media: mt9m111: set initial frame size other than 0x0
hwrng: virtio - Avoid repeated init of completion
soc/tegra: fuse: Fix illegal free of IO base address
HID: intel-ish: ipc: handle PIMR before ish_wakeup also clear PISR busy_clear bit
f2fs: UBSAN: set boolean value iostat_enable correctly
hpet: Fix missing '=' character in the __setup() code of hpet_mmap_enable
cpu/hotplug: Mute hotplug lockdep during init
dmaengine: imx-dma: fix warning comparison of distinct pointer types
dmaengine: qcom_hidma: assign channel cookie correctly
dmaengine: qcom_hidma: initialize tx flags in hidma_prep_dma_*
netfilter: physdev: relax br_netfilter dependency
media: rcar-vin: Allow independent VIN link enablement
media: s5p-jpeg: Check for fmt_ver_flag when doing fmt enumeration
regulator: act8865: Fix act8600_sudcdc_voltage_ranges setting
pinctrl: meson: meson8b: add the eth_rxd2 and eth_rxd3 pins
drm: Auto-set allow_fb_modifiers when given modifiers at plane init
drm/nouveau: Stop using drm_crtc_force_disable
x86/build: Specify elf_i386 linker emulation explicitly for i386 objects
selinux: do not override context on context mounts
brcmfmac: Use firmware_request_nowarn for the clm_blob
wlcore: Fix memory leak in case wl12xx_fetch_firmware failure
x86/build: Mark per-CPU symbols as absolute explicitly for LLD
drm/fb-helper: fix leaks in error path of drm_fb_helper_fbdev_setup
clk: meson: clean-up clock registration
clk: rockchip: fix frac settings of GPLL clock for rk3328
dmaengine: tegra: avoid overflow of byte tracking
Input: soc_button_array - fix mapping of the 5th GPIO in a PNP0C40 device
drm/dp/mst: Configure no_stop_bit correctly for remote i2c xfers
net: stmmac: Avoid one more sometimes uninitialized Clang warning
ACPI / video: Extend chassis-type detection with a "Lunch Box" check
bcache: fix potential div-zero error of writeback_rate_p_term_inverse
kprobes/x86: Blacklist non-attachable interrupt functions
Linux 4.19.34
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit 51bee5abeab2058ea5813c5615d6197a23dbf041 ]
The only user of cgroup_subsys->free() callback is pids_cgrp_subsys which
needs pids_free() to uncharge the pid.
However, ->free() is called from __put_task_struct()->cgroup_free() and this
is too late. Even the trivial program which does
for (;;) {
int pid = fork();
assert(pid >= 0);
if (pid)
wait(NULL);
else
exit(0);
}
can run out of limits because release_task()->call_rcu(delayed_put_task_struct)
implies an RCU gp after the task/pid goes away and before the final put().
Test-case:
mkdir -p /tmp/CG
mount -t cgroup2 none /tmp/CG
echo '+pids' > /tmp/CG/cgroup.subtree_control
mkdir /tmp/CG/PID
echo 2 > /tmp/CG/PID/pids.max
perl -e 'while ($p = fork) { wait; } $p // die "fork failed: $!\n"' &
echo $! > /tmp/CG/PID/cgroup.procs
Without this patch the forking process fails soon after migration.
Rename cgroup_subsys->free() to cgroup_subsys->release() and move the callsite
into the new helper, cgroup_release(), called by release_task() which actually
frees the pid(s).
Reported-by: Herton R. Krzesinski <hkrzesin@redhat.com>
Reported-by: Jan Stancek <jstancek@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
[ Upstream commit b4ff1b44bcd384d22fcbac6ebaf9cc0d33debe50 ]
cgroup_rstat_cpu_pop_updated() is used to traverse the updated cgroups
on flush. While it was only visiting updated ones in the subtree, it
was visiting @root unconditionally. We can easily check whether @root
is updated or not by looking at its ->updated_next just as with the
cgroups in the subtree.
* Remove the unnecessary cgroup_parent() test. The system root cgroup
is never updated and thus its ->updated_next is always NULL. No
need to test whether cgroup_parent() exists in addition to
->updated_next.
* Terminate traverse if ->updated_next is NULL. This can only happen
for subtree @root and there's no reason to visit it if it's not
marked updated.
This reduces cpu consumption when reading a lot of rstat backed files.
In a micro benchmark reading stat from ~1600 cgroups, the sys time was
lowered by >40%.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.19.31 into android-4.19
Changes in 4.19.31
media: videobuf2-v4l2: drop WARN_ON in vb2_warn_zero_bytesused()
9p: use inode->i_lock to protect i_size_write() under 32-bit
9p/net: fix memory leak in p9_client_create
ASoC: fsl_esai: fix register setting issue in RIGHT_J mode
ASoC: codecs: pcm186x: fix wrong usage of DECLARE_TLV_DB_SCALE()
ASoC: codecs: pcm186x: Fix energysense SLEEP bit
iio: adc: exynos-adc: Fix NULL pointer exception on unbind
mei: hbm: clean the feature flags on link reset
mei: bus: move hw module get/put to probe/release
stm class: Fix an endless loop in channel allocation
crypto: caam - fix hash context DMA unmap size
crypto: ccree - fix missing break in switch statement
crypto: caam - fixed handling of sg list
crypto: caam - fix DMA mapping of stack memory
crypto: ccree - fix free of unallocated mlli buffer
crypto: ccree - unmap buffer before copying IV
crypto: ccree - don't copy zero size ciphertext
crypto: cfb - add missing 'chunksize' property
crypto: cfb - remove bogus memcpy() with src == dest
crypto: ahash - fix another early termination in hash walk
crypto: rockchip - fix scatterlist nents error
crypto: rockchip - update new iv to device in multiple operations
drm/imx: ignore plane updates on disabled crtcs
gpu: ipu-v3: Fix i.MX51 CSI control registers offset
drm/imx: imx-ldb: add missing of_node_puts
gpu: ipu-v3: Fix CSI offsets for imx53
ASoC: rt5682: Correct the setting while select ASRC clk for AD/DA filter
clocksource: timer-ti-dm: Fix pwm dmtimer usage of fck reparenting
KVM: arm/arm64: vgic: Make vgic_dist->lpi_list_lock a raw_spinlock
arm64: dts: rockchip: fix graph_port warning on rk3399 bob kevin and excavator
s390/dasd: fix using offset into zero size array error
Input: pwm-vibra - prevent unbalanced regulator
Input: pwm-vibra - stop regulator after disabling pwm, not before
ARM: dts: Configure clock parent for pwm vibra
ARM: OMAP2+: Variable "reg" in function omap4_dsi_mux_pads() could be uninitialized
ASoC: dapm: fix out-of-bounds accesses to DAPM lookup tables
ASoC: rsnd: fixup rsnd_ssi_master_clk_start() user count check
KVM: arm/arm64: Reset the VCPU without preemption and vcpu state loaded
arm/arm64: KVM: Allow a VCPU to fully reset itself
arm/arm64: KVM: Don't panic on failure to properly reset system registers
KVM: arm/arm64: vgic: Always initialize the group of private IRQs
KVM: arm64: Forbid kprobing of the VHE world-switch code
ASoC: samsung: Prevent clk_get_rate() calls in atomic context
ARM: OMAP2+: fix lack of timer interrupts on CPU1 after hotplug
Input: cap11xx - switch to using set_brightness_blocking()
Input: ps2-gpio - flush TX work when closing port
Input: matrix_keypad - use flush_delayed_work()
mac80211: call drv_ibss_join() on restart
mac80211: Fix Tx aggregation session tear down with ITXQs
netfilter: compat: initialize all fields in xt_init
blk-mq: insert rq with DONTPREP to hctx dispatch list when requeue
ipvs: fix dependency on nf_defrag_ipv6
floppy: check_events callback should not return a negative number
xprtrdma: Make sure Send CQ is allocated on an existing compvec
NFS: Don't use page_file_mapping after removing the page
mm/gup: fix gup_pmd_range() for dax
Revert "mm: use early_pfn_to_nid in page_ext_init"
scsi: qla2xxx: Fix panic from use after free in qla2x00_async_tm_cmd
net: dsa: bcm_sf2: potential array overflow in bcm_sf2_sw_suspend()
x86/CPU: Add Icelake model number
mm: page_alloc: fix ref bias in page_frag_alloc() for 1-byte allocs
net: hns: Fix object reference leaks in hns_dsaf_roce_reset()
i2c: cadence: Fix the hold bit setting
i2c: bcm2835: Clear current buffer pointers and counts after a transfer
auxdisplay: ht16k33: fix potential user-after-free on module unload
Input: st-keyscan - fix potential zalloc NULL dereference
clk: sunxi-ng: v3s: Fix TCON reset de-assert bit
kallsyms: Handle too long symbols in kallsyms.c
clk: sunxi: A31: Fix wrong AHB gate number
esp: Skip TX bytes accounting when sending from a request socket
ARM: 8824/1: fix a migrating irq bug when hotplug cpu
bpf: only adjust gso_size on bytestream protocols
bpf: fix lockdep false positive in stackmap
af_key: unconditionally clone on broadcast
ARM: 8835/1: dma-mapping: Clear DMA ops on teardown
assoc_array: Fix shortcut creation
keys: Fix dependency loop between construction record and auth key
scsi: libiscsi: Fix race between iscsi_xmit_task and iscsi_complete_task
net: systemport: Fix reception of BPDUs
net: dsa: bcm_sf2: Do not assume DSA master supports WoL
pinctrl: meson: meson8b: fix the sdxc_a data 1..3 pins
qmi_wwan: apply SET_DTR quirk to Sierra WP7607
net: mv643xx_eth: disable clk on error path in mv643xx_eth_shared_probe()
xfrm: Fix inbound traffic via XFRM interfaces across network namespaces
mailbox: bcm-flexrm-mailbox: Fix FlexRM ring flush timeout issue
ASoC: topology: free created components in tplg load error
qed: Fix iWARP buffer size provided for syn packet processing.
qed: Fix iWARP syn packet mac address validation.
ARM: dts: armada-xp: fix Armada XP boards NAND description
arm64: Relax GIC version check during early boot
ARM: tegra: Restore DT ABI on Tegra124 Chromebooks
net: marvell: mvneta: fix DMA debug warning
mm: handle lru_add_drain_all for UP properly
tmpfs: fix link accounting when a tmpfile is linked in
ixgbe: fix older devices that do not support IXGBE_MRQC_L3L4TXSWEN
ARCv2: lib: memcpy: fix doing prefetchw outside of buffer
ARC: uacces: remove lp_start, lp_end from clobber list
ARCv2: support manual regfile save on interrupts
ARCv2: don't assume core 0x54 has dual issue
phonet: fix building with clang
mac80211_hwsim: propagate genlmsg_reply return code
bpf, lpm: fix lookup bug in map_delete_elem
net: thunderx: make CFG_DONE message to run through generic send-ack sequence
net: thunderx: add nicvf_send_msg_to_pf result check for set_rx_mode_task
nfp: bpf: fix code-gen bug on BPF_ALU | BPF_XOR | BPF_K
nfp: bpf: fix ALU32 high bits clearance bug
bnxt_en: Fix typo in firmware message timeout logic.
bnxt_en: Wait longer for the firmware message response to complete.
net: set static variable an initial value in atl2_probe()
selftests: fib_tests: sleep after changing carrier. again.
tmpfs: fix uninitialized return value in shmem_link
stm class: Prevent division by zero
nfit: acpi_nfit_ctl(): Check out_obj->type in the right place
acpi/nfit: Fix bus command validation
nfit/ars: Attempt a short-ARS whenever the ARS state is idle at boot
nfit/ars: Attempt short-ARS even in the no_init_ars case
libnvdimm/label: Clear 'updating' flag after label-set update
libnvdimm, pfn: Fix over-trim in trim_pfn_device()
libnvdimm/pmem: Honor force_raw for legacy pmem regions
libnvdimm: Fix altmap reservation size calculation
fix cgroup_do_mount() handling of failure exits
crypto: aead - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: aegis - fix handling chunked inputs
crypto: arm/crct10dif - revert to C code for short inputs
crypto: arm64/aes-neonbs - fix returning final keystream block
crypto: arm64/crct10dif - revert to C code for short inputs
crypto: hash - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: morus - fix handling chunked inputs
crypto: pcbc - remove bogus memcpy()s with src == dest
crypto: skcipher - set CRYPTO_TFM_NEED_KEY if ->setkey() fails
crypto: testmgr - skip crc32c context test for ahash algorithms
crypto: x86/aegis - fix handling chunked inputs and MAY_SLEEP
crypto: x86/aesni-gcm - fix crash on empty plaintext
crypto: x86/morus - fix handling chunked inputs and MAY_SLEEP
crypto: arm64/aes-ccm - fix logical bug in AAD MAC handling
crypto: arm64/aes-ccm - fix bugs in non-NEON fallback routine
CIFS: Do not reset lease state to NONE on lease break
CIFS: Do not skip SMB2 message IDs on send failures
CIFS: Fix read after write for files with read caching
tracing: Use strncpy instead of memcpy for string keys in hist triggers
tracing: Do not free iter->trace in fail path of tracing_open_pipe()
tracing/perf: Use strndup_user() instead of buggy open-coded version
xen: fix dom0 boot on huge systems
ACPI / device_sysfs: Avoid OF modalias creation for removed device
mmc: sdhci-esdhc-imx: fix HS400 timing issue
mmc:fix a bug when max_discard is 0
netfilter: ipt_CLUSTERIP: fix warning unused variable cn
spi: ti-qspi: Fix mmap read when more than one CS in use
spi: pxa2xx: Setup maximum supported DMA transfer length
regulator: s2mps11: Fix steps for buck7, buck8 and LDO35
regulator: max77620: Initialize values for DT properties
regulator: s2mpa01: Fix step values for some LDOs
clocksource/drivers/exynos_mct: Move one-shot check from tick clear to ISR
clocksource/drivers/exynos_mct: Clear timer interrupt when shutdown
clocksource/drivers/arch_timer: Workaround for Allwinner A64 timer instability
s390/setup: fix early warning messages
s390/virtio: handle find on invalid queue gracefully
scsi: virtio_scsi: don't send sc payload with tmfs
scsi: aacraid: Fix performance issue on logical drives
scsi: sd: Optimal I/O size should be a multiple of physical block size
scsi: target/iscsi: Avoid iscsit_release_commands_from_conn() deadlock
scsi: qla2xxx: Fix LUN discovery if loop id is not assigned yet by firmware
fs/devpts: always delete dcache dentry-s in dput()
splice: don't merge into linked buffers
ovl: During copy up, first copy up data and then xattrs
ovl: Do not lose security.capability xattr over metadata file copy-up
m68k: Add -ffreestanding to CFLAGS
Btrfs: setup a nofs context for memory allocation at btrfs_create_tree()
Btrfs: setup a nofs context for memory allocation at __btrfs_set_acl
btrfs: ensure that a DUP or RAID1 block group has exactly two stripes
Btrfs: fix corruption reading shared and compressed extents after hole punching
soc: qcom: rpmh: Avoid accessing freed memory from batch API
libertas_tf: don't set URB_ZERO_PACKET on IN USB transfer
irqchip/gic-v3-its: Avoid parsing _indirect_ twice for Device table
irqchip/brcmstb-l2: Use _irqsave locking variants in non-interrupt code
x86/kprobes: Prohibit probing on optprobe template code
cpufreq: kryo: Release OPP tables on module removal
cpufreq: tegra124: add missing of_node_put()
cpufreq: pxa2xx: remove incorrect __init annotation
ext4: fix check of inode in swap_inode_boot_loader
ext4: cleanup pagecache before swap i_data
ext4: update quota information while swapping boot loader inode
ext4: add mask of ext4 flags to swap
ext4: fix crash during online resizing
PCI/ASPM: Use LTR if already enabled by platform
PCI/DPC: Fix print AER status in DPC event handling
PCI: dwc: skip MSI init if MSIs have been explicitly disabled
IB/hfi1: Close race condition on user context disable and close
cxl: Wrap iterations over afu slices inside 'afu_list_lock'
ext2: Fix underflow in ext2_max_size()
clk: uniphier: Fix update register for CPU-gear
clk: clk-twl6040: Fix imprecise external abort for pdmclk
clk: samsung: exynos5: Fix possible NULL pointer exception on platform_device_alloc() failure
clk: samsung: exynos5: Fix kfree() of const memory on setting driver_override
clk: ingenic: Fix round_rate misbehaving with non-integer dividers
clk: ingenic: Fix doc of ingenic_cgu_div_info
usb: chipidea: tegra: Fix missed ci_hdrc_remove_device()
usb: typec: tps6598x: handle block writes separately with plain-I2C adapters
dmaengine: usb-dmac: Make DMAC system sleep callbacks explicit
mm: hwpoison: fix thp split handing in soft_offline_in_use_page()
mm/vmalloc: fix size check for remap_vmalloc_range_partial()
mm/memory.c: do_fault: avoid usage of stale vm_area_struct
kernel/sysctl.c: add missing range check in do_proc_dointvec_minmax_conv
device property: Fix the length used in PROPERTY_ENTRY_STRING()
intel_th: Don't reference unassigned outputs
parport_pc: fix find_superio io compare code, should use equal test.
i2c: tegra: fix maximum transfer size
media: i2c: ov5640: Fix post-reset delay
gpio: pca953x: Fix dereference of irq data in shutdown
can: flexcan: FLEXCAN_IFLAG_MB: add () around macro argument
drm/i915: Relax mmap VMA check
bpf: only test gso type on gso packets
serial: uartps: Fix stuck ISR if RX disabled with non-empty FIFO
serial: 8250_of: assume reg-shift of 2 for mrvl,mmp-uart
serial: 8250_pci: Fix number of ports for ACCES serial cards
serial: 8250_pci: Have ACCES cards that use the four port Pericom PI7C9X7954 chip use the pci_pericom_setup()
jbd2: clear dirty flag when revoking a buffer from an older transaction
jbd2: fix compile warning when using JBUFFER_TRACE
selinux: add the missing walk_size + len check in selinux_sctp_bind_connect
security/selinux: fix SECURITY_LSM_NATIVE_LABELS on reused superblock
powerpc/32: Clear on-stack exception marker upon exception return
powerpc/wii: properly disable use of BATs when requested.
powerpc/powernv: Make opal log only readable by root
powerpc/83xx: Also save/restore SPRG4-7 during suspend
powerpc/powernv: Don't reprogram SLW image on every KVM guest entry/exit
powerpc: Fix 32-bit KVM-PR lockup and host crash with MacOS guest
powerpc/ptrace: Simplify vr_get/set() to avoid GCC warning
powerpc/hugetlb: Don't do runtime allocation of 16G pages in LPAR configuration
powerpc/traps: fix recoverability of machine check handling on book3s/32
powerpc/traps: Fix the message printed when stack overflows
ARM: s3c24xx: Fix boolean expressions in osiris_dvs_notify
arm64: Fix HCR.TGE status for NMI contexts
arm64: debug: Ensure debug handlers check triggering exception level
arm64: KVM: Fix architecturally invalid reset value for FPEXC32_EL2
ipmi_si: fix use-after-free of resource->name
dm: fix to_sector() for 32bit
dm integrity: limit the rate of error messages
mfd: sm501: Fix potential NULL pointer dereference
cpcap-charger: generate events for userspace
NFS: Fix I/O request leakages
NFS: Fix an I/O request leakage in nfs_do_recoalesce
NFS: Don't recoalesce on error in nfs_pageio_complete_mirror()
nfsd: fix performance-limiting session calculation
nfsd: fix memory corruption caused by readdir
nfsd: fix wrong check in write_v4_end_grace()
NFSv4.1: Reinitialise sequence results before retransmitting a request
svcrpc: fix UDP on servers with lots of threads
PM / wakeup: Rework wakeup source timer cancellation
bcache: never writeback a discard operation
stable-kernel-rules.rst: add link to networking patch queue
vt: perform safe console erase in the right order
x86/unwind/orc: Fix ORC unwind table alignment
perf intel-pt: Fix CYC timestamp calculation after OVF
perf tools: Fix split_kallsyms_for_kcore() for trampoline symbols
perf auxtrace: Define auxtrace record alignment
perf intel-pt: Fix overlap calculation for padding
perf/x86/intel/uncore: Fix client IMC events return huge result
perf intel-pt: Fix divide by zero when TSC is not available
md: Fix failed allocation of md_register_thread
tpm/tpm_crb: Avoid unaligned reads in crb_recv()
tpm: Unify the send callback behaviour
rcu: Do RCU GP kthread self-wakeup from softirq and interrupt
media: imx: prpencvf: Stop upstream before disabling IDMA channel
media: lgdt330x: fix lock status reporting
media: uvcvideo: Avoid NULL pointer dereference at the end of streaming
media: vimc: Add vimc-streamer for stream control
media: imx: csi: Disable CSI immediately after last EOF
media: imx: csi: Stop upstream before disabling IDMA channel
drm/fb-helper: generic: Fix drm_fbdev_client_restore()
drm/radeon/evergreen_cs: fix missing break in switch statement
drm/amd/powerplay: correct power reading on fiji
drm/amd/display: don't call dm_pp_ function from an fpu block
KVM: Call kvm_arch_memslots_updated() before updating memslots
KVM: x86/mmu: Detect MMIO generation wrap in any address space
KVM: x86/mmu: Do not cache MMIO accesses while memslots are in flux
KVM: nVMX: Sign extend displacements of VMX instr's mem operands
KVM: nVMX: Apply addr size mask to effective address for VMX instructions
KVM: nVMX: Ignore limit checks on VMX instructions using flat segments
bcache: use (REQ_META|REQ_PRIO) to indicate bio for metadata
s390/setup: fix boot crash for machine without EDAT-1
Linux 4.19.31
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
commit 399504e21a10be16dd1408ba0147367d9d82a10c upstream.
same story as with last May fixes in sysfs (7b745a4e40
"unfuck sysfs_mount()"); new_sb is left uninitialized
in case of early errors in kernfs_mount_ns() and papering
over it by treating any error from kernfs_mount_ns() as
equivalent to !new_ns ends up conflating the cases when
objects had never been transferred to a superblock with
ones when that has happened and resulting new superblock
had been dropped. Easily fixed (same way as in sysfs
case). Additionally, there's a superblock leak on
kernfs_node_dentry() failure *and* a dentry leak inside
kernfs_node_dentry() itself - the latter on probably
impossible errors, but the former not impossible to trigger
(as the matter of fact, injecting allocation failures
at that point *does* trigger it).
Cc: stable@kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Psi monitor aims to provide a low-latency short-term pressure
detection mechanism configurable by users. It allows users to
monitor psi metrics growth and trigger events whenever a metric
raises above user-defined threshold within user-defined time window.
Time window and threshold are both expressed in usecs. Multiple psi
resources with different thresholds and window sizes can be monitored
concurrently.
Psi monitors activate when system enters stall state for the monitored
psi metric and deactivate upon exit from the stall state. While system
is in the stall state psi signal growth is monitored at a rate of 10 times
per tracking window. Min window size is 500ms, therefore the min monitoring
interval is 50ms. Max window size is 10s with monitoring interval of 1s.
When activated psi monitor stays active for at least the duration of one
tracking window to avoid repeated activations/deactivations when psi
signal is bouncing.
Notifications to the users are rate-limited to one per tracking window.
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
(not upstream yet, latest version published at: https://lore.kernel.org/patchwork/patch/1052418/)
Bug: 127712811
Bug: 129157727
Test: lmkd in PSI mode
Change-Id: I860049d32420485346ad545c4650f990fe0c08e3
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cgroup has a standardized poll/notification mechanism for waking all
pollers on all fds when a filesystem node changes. To allow polling for
custom events, add a .poll callback that can override the default.
This is in preparation for pollable cgroup pressure files which have
per-fd trigger configurations.
Link: http://lkml.kernel.org/r/20190124211518.244221-3-surenb@google.com
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Cc: Dennis Zhou <dennis@kernel.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
(cherry picked from commit: dc50537bdd1a0804fa2cbc990565ee9a944e66fa)
Bug: 127712811
Test: lmkd in PSI mode
Change-Id: Idc648e7b7b7bd5fc00c7b32163e55a93b0f49a98
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
On a system that executes multiple cgrouped jobs and independent
workloads, we don't just care about the health of the overall system, but
also that of individual jobs, so that we can ensure individual job health,
fairness between jobs, or prioritize some jobs over others.
This patch implements pressure stall tracking for cgroups. In kernels
with CONFIG_PSI=y, cgroup2 groups will have cpu.pressure, memory.pressure,
and io.pressure files that track aggregate pressure stall times for only
the tasks inside the cgroup.
Link: http://lkml.kernel.org/r/20180828172258.3185-10-hannes@cmpxchg.org
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Tejun Heo <tj@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Tested-by: Daniel Drake <drake@endlessm.com>
Tested-by: Suren Baghdasaryan <surenb@google.com>
Cc: Christopher Lameter <cl@linux.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Johannes Weiner <jweiner@fb.com>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Enderborg <peter.enderborg@sony.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Shakeel Butt <shakeelb@google.com>
Cc: Vinayak Menon <vinmenon@codeaurora.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
(cherry picked from commit 2ce7135adc9ad081aa3c49744144376ac74fea60)
Bug: 127712811
Test: lmkd in PSI mode
Change-Id: I163e6657aaa60aa5aab9372616a3bce2a65e90ec
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
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Merge 4.19.21 into android-4.19
Changes in 4.19.21
devres: Align data[] to ARCH_KMALLOC_MINALIGN
drm/bufs: Fix Spectre v1 vulnerability
staging: iio: adc: ad7280a: handle error from __ad7280_read32()
drm/vgem: Fix vgem_init to get drm device available.
pinctrl: bcm2835: Use raw spinlock for RT compatibility
ASoC: Intel: mrfld: fix uninitialized variable access
gpiolib: Fix possible use after free on label
drm/sun4i: Initialize registers in tcon-top driver
genirq/affinity: Spread IRQs to all available NUMA nodes
gpu: ipu-v3: image-convert: Prevent race between run and unprepare
nds32: Fix gcc 8.0 compiler option incompatible.
wil6210: fix reset flow for Talyn-mb
wil6210: fix memory leak in wil_find_tx_bcast_2
ath10k: assign 'n_cipher_suites' for WCN3990
ath9k: dynack: use authentication messages for 'late' ack
scsi: lpfc: Correct LCB RJT handling
scsi: mpt3sas: Call sas_remove_host before removing the target devices
scsi: lpfc: Fix LOGO/PLOGI handling when triggerd by ABTS Timeout event
ARM: 8808/1: kexec:offline panic_smp_self_stop CPU
clk: boston: fix possible memory leak in clk_boston_setup()
dlm: Don't swamp the CPU with callbacks queued during recovery
x86/PCI: Fix Broadcom CNB20LE unintended sign extension (redux)
powerpc/pseries: add of_node_put() in dlpar_detach_node()
crypto: aes_ti - disable interrupts while accessing S-box
drm/vc4: ->x_scaling[1] should never be set to VC4_SCALING_NONE
serial: fsl_lpuart: clear parity enable bit when disable parity
ptp: check gettime64 return code in PTP_SYS_OFFSET ioctl
MIPS: Boston: Disable EG20T prefetch
dpaa2-ptp: defer probe when portal allocation failed
iwlwifi: fw: do not set sgi bits for HE connection
staging:iio:ad2s90: Make probe handle spi_setup failure
fpga: altera-cvp: Fix registration for CvP incapable devices
Tools: hv: kvp: Fix a warning of buffer overflow with gcc 8.0.1
fpga: altera-cvp: fix 'bad IO access' on x86_64
vbox: fix link error with 'gcc -Og'
platform/chrome: don't report EC_MKBP_EVENT_SENSOR_FIFO as wakeup
i40e: prevent overlapping tx_timeout recover
scsi: hisi_sas: change the time of SAS SSP connection
staging: iio: ad7780: update voltage on read
usbnet: smsc95xx: fix rx packet alignment
drm/rockchip: fix for mailbox read size
ARM: OMAP2+: hwmod: Fix some section annotations
drm/amd/display: fix gamma not being applied correctly
drm/amd/display: calculate stream->phy_pix_clk before clock mapping
bpf: libbpf: retry map creation without the name
net/mlx5: EQ, Use the right place to store/read IRQ affinity hint
modpost: validate symbol names also in find_elf_symbol
perf tools: Add Hygon Dhyana support
soc/tegra: Don't leak device tree node reference
media: rc: ensure close() is called on rc_unregister_device
media: video-i2c: avoid accessing released memory area when removing driver
media: mtk-vcodec: Release device nodes in mtk_vcodec_init_enc_pm()
staging: erofs: fix the definition of DBG_BUGON
clk: meson: meson8b: do not use cpu_div3 for cpu_scale_out_sel
clk: meson: meson8b: fix the width of the cpu_scale_div clock
clk: meson: meson8b: mark the CPU clock as CLK_IS_CRITICAL
ptp: Fix pass zero to ERR_PTR() in ptp_clock_register
dmaengine: xilinx_dma: Remove __aligned attribute on zynqmp_dma_desc_ll
powerpc/32: Add .data..Lubsan_data*/.data..Lubsan_type* sections explicitly
iio: adc: meson-saradc: check for devm_kasprintf failure
iio: adc: meson-saradc: fix internal clock names
iio: accel: kxcjk1013: Add KIOX010A ACPI Hardware-ID
media: adv*/tc358743/ths8200: fill in min width/height/pixelclock
ACPI: SPCR: Consider baud rate 0 as preconfigured state
staging: pi433: fix potential null dereference
f2fs: move dir data flush to write checkpoint process
f2fs: fix race between write_checkpoint and write_begin
f2fs: fix wrong return value of f2fs_acl_create
i2c: sh_mobile: add support for r8a77990 (R-Car E3)
arm64: io: Ensure calls to delay routines are ordered against prior readX()
net: aquantia: return 'err' if set MPI_DEINIT state fails
sunvdc: Do not spin in an infinite loop when vio_ldc_send() returns EAGAIN
soc: bcm: brcmstb: Don't leak device tree node reference
nfsd4: fix crash on writing v4_end_grace before nfsd startup
drm: Clear state->acquire_ctx before leaving drm_atomic_helper_commit_duplicated_state()
perf: arm_spe: handle devm_kasprintf() failure
arm64: io: Ensure value passed to __iormb() is held in a 64-bit register
Thermal: do not clear passive state during system sleep
thermal: Fix locking in cooling device sysfs update cur_state
firmware/efi: Add NULL pointer checks in efivars API functions
s390/zcrypt: improve special ap message cmd handling
mt76x0: dfs: fix IBI_R11 configuration on non-radar channels
arm64: ftrace: don't adjust the LR value
drm/v3d: Fix prime imports of buffers from other drivers.
ARM: dts: mmp2: fix TWSI2
ARM: dts: aspeed: add missing memory unit-address
x86/fpu: Add might_fault() to user_insn()
media: i2c: TDA1997x: select CONFIG_HDMI
media: DaVinci-VPBE: fix error handling in vpbe_initialize()
smack: fix access permissions for keyring
xtensa: xtfpga.dtsi: fix dtc warnings about SPI
usb: dwc3: Correct the logic for checking TRB full in __dwc3_prepare_one_trb()
usb: dwc2: Disable power down feature on Samsung SoCs
usb: hub: delay hub autosuspend if USB3 port is still link training
timekeeping: Use proper seqcount initializer
usb: mtu3: fix the issue about SetFeature(U1/U2_Enable)
clk: sunxi-ng: a33: Set CLK_SET_RATE_PARENT for all audio module clocks
media: imx274: select REGMAP_I2C
drm/amdgpu/powerplay: fix clock stretcher limits on polaris (v2)
tipc: fix node keep alive interval calculation
driver core: Move async_synchronize_full call
kobject: return error code if writing /sys/.../uevent fails
IB/hfi1: Unreserve a reserved request when it is completed
usb: dwc3: trace: add missing break statement to make compiler happy
gpio: mt7621: report failure of devm_kasprintf()
gpio: mt7621: pass mediatek_gpio_bank_probe() failure up the stack
pinctrl: sx150x: handle failure case of devm_kstrdup
iommu/amd: Fix amd_iommu=force_isolation
ARM: dts: Fix OMAP4430 SDP Ethernet startup
mips: bpf: fix encoding bug for mm_srlv32_op
media: coda: fix H.264 deblocking filter controls
ARM: dts: Fix up the D-Link DIR-685 MTD partition info
watchdog: renesas_wdt: don't set divider while watchdog is running
ARM: dts: imx51-zii-rdu1: Do not specify "power-gpio" for hpa1
usb: dwc3: gadget: Disable CSP for stream OUT ep
iommu/arm-smmu-v3: Avoid memory corruption from Hisilicon MSI payloads
iommu/arm-smmu: Add support for qcom,smmu-v2 variant
iommu/arm-smmu-v3: Use explicit mb() when moving cons pointer
sata_rcar: fix deferred probing
clk: imx6sl: ensure MMDC CH0 handshake is bypassed
platform/x86: mlx-platform: Fix tachometer registers
cpuidle: big.LITTLE: fix refcount leak
OPP: Use opp_table->regulators to verify no regulator case
tee: optee: avoid possible double list_del()
drm/msm/dsi: fix dsi clock names in DSI 10nm PLL driver
drm/msm: dpu: Only check flush register against pending flushes
lightnvm: pblk: fix resubmission of overwritten write err lbas
lightnvm: pblk: add lock protection to list operations
i2c-axxia: check for error conditions first
phy: sun4i-usb: add support for missing USB PHY index
mlxsw: spectrum_acl: Limit priority value
udf: Fix BUG on corrupted inode
switchtec: Fix SWITCHTEC_IOCTL_EVENT_IDX_ALL flags overwrite
selftests/bpf: use __bpf_constant_htons in test_prog.c
ARM: pxa: avoid section mismatch warning
ASoC: fsl: Fix SND_SOC_EUKREA_TLV320 build error on i.MX8M
KVM: PPC: Book3S: Only report KVM_CAP_SPAPR_TCE_VFIO on powernv machines
mmc: bcm2835: Recover from MMC_SEND_EXT_CSD
mmc: bcm2835: reset host on timeout
mmc: meson-mx-sdio: check devm_kasprintf for failure
memstick: Prevent memstick host from getting runtime suspended during card detection
mmc: sdhci-of-esdhc: Fix timeout checks
mmc: sdhci-omap: Fix timeout checks
mmc: sdhci-xenon: Fix timeout checks
mmc: jz4740: Get CD/WP GPIOs from descriptors
usb: renesas_usbhs: add support for RZ/G2E
btrfs: harden agaist duplicate fsid on scanned devices
serial: sh-sci: Fix locking in sci_submit_rx()
serial: sh-sci: Resume PIO in sci_rx_interrupt() on DMA failure
tty: serial: samsung: Properly set flags in autoCTS mode
perf test: Fix perf_event_attr test failure
perf dso: Fix unchecked usage of strncpy()
perf header: Fix unchecked usage of strncpy()
btrfs: use tagged writepage to mitigate livelock of snapshot
perf probe: Fix unchecked usage of strncpy()
i2c: sh_mobile: Add support for r8a774c0 (RZ/G2E)
bnxt_en: Disable MSIX before re-reserving NQs/CMPL rings.
tools/power/x86/intel_pstate_tracer: Fix non root execution for post processing a trace file
livepatch: check kzalloc return values
arm64: KVM: Skip MMIO insn after emulation
usb: musb: dsps: fix otg state machine
usb: musb: dsps: fix runtime pm for peripheral mode
perf header: Fix up argument to ctime()
perf tools: Cast off_t to s64 to avoid warning on bionic libc
percpu: convert spin_lock_irq to spin_lock_irqsave.
net: hns3: fix incomplete uninitialization of IRQ in the hns3_nic_uninit_vector_data()
drm/amd/display: Add retry to read ddc_clock pin
Bluetooth: hci_bcm: Handle deferred probing for the clock supply
drm/amd/display: fix YCbCr420 blank color
powerpc/uaccess: fix warning/error with access_ok()
mac80211: fix radiotap vendor presence bitmap handling
xfrm6_tunnel: Fix spi check in __xfrm6_tunnel_alloc_spi
mlxsw: spectrum: Properly cleanup LAG uppers when removing port from LAG
scsi: smartpqi: correct host serial num for ssa
scsi: smartpqi: correct volume status
scsi: smartpqi: increase fw status register read timeout
cw1200: Fix concurrency use-after-free bugs in cw1200_hw_scan()
net: hns3: add max vector number check for pf
powerpc/perf: Fix thresholding counter data for unknown type
iwlwifi: mvm: fix setting HE ppe FW config
powerpc/powernv/ioda: Allocate indirect TCE levels of cached userspace addresses on demand
mlx5: update timecounter at least twice per counter overflow
drbd: narrow rcu_read_lock in drbd_sync_handshake
drbd: disconnect, if the wrong UUIDs are attached on a connected peer
drbd: skip spurious timeout (ping-timeo) when failing promote
drbd: Avoid Clang warning about pointless switch statment
drm/amd/display: validate extended dongle caps
video: clps711x-fb: release disp device node in probe()
md: fix raid10 hang issue caused by barrier
fbdev: fbmem: behave better with small rotated displays and many CPUs
i40e: define proper net_device::neigh_priv_len
ice: Do not enable NAPI on q_vectors that have no rings
igb: Fix an issue that PME is not enabled during runtime suspend
ACPI/APEI: Clear GHES block_status before panic()
fbdev: fbcon: Fix unregister crash when more than one framebuffer
powerpc/mm: Fix reporting of kernel execute faults on the 8xx
pinctrl: meson: meson8: fix the GPIO function for the GPIOAO pins
pinctrl: meson: meson8b: fix the GPIO function for the GPIOAO pins
KVM: x86: svm: report MSR_IA32_MCG_EXT_CTL as unsupported
powerpc/fadump: Do not allow hot-remove memory from fadump reserved area.
kvm: Change offset in kvm_write_guest_offset_cached to unsigned
NFS: nfs_compare_mount_options always compare auth flavors.
perf build: Don't unconditionally link the libbfd feature test to -liberty and -lz
hwmon: (lm80) fix a missing check of the status of SMBus read
hwmon: (lm80) fix a missing check of bus read in lm80 probe
seq_buf: Make seq_buf_puts() null-terminate the buffer
crypto: ux500 - Use proper enum in cryp_set_dma_transfer
crypto: ux500 - Use proper enum in hash_set_dma_transfer
MIPS: ralink: Select CONFIG_CPU_MIPSR2_IRQ_VI on MT7620/8
cifs: check ntwrk_buf_start for NULL before dereferencing it
f2fs: fix use-after-free issue when accessing sbi->stat_info
um: Avoid marking pages with "changed protection"
niu: fix missing checks of niu_pci_eeprom_read
f2fs: fix sbi->extent_list corruption issue
cgroup: fix parsing empty mount option string
perf python: Do not force closing original perf descriptor in evlist.get_pollfd()
scripts/decode_stacktrace: only strip base path when a prefix of the path
arch/sh/boards/mach-kfr2r09/setup.c: fix struct mtd_oob_ops build warning
ocfs2: don't clear bh uptodate for block read
ocfs2: improve ocfs2 Makefile
mm/page_alloc.c: don't call kasan_free_pages() at deferred mem init
zram: fix lockdep warning of free block handling
isdn: hisax: hfc_pci: Fix a possible concurrency use-after-free bug in HFCPCI_l1hw()
gdrom: fix a memory leak bug
fsl/fman: Use GFP_ATOMIC in {memac,tgec}_add_hash_mac_address()
block/swim3: Fix -EBUSY error when re-opening device after unmount
thermal: bcm2835: enable hwmon explicitly
kdb: Don't back trace on a cpu that didn't round up
PCI: imx: Enable MSI from downstream components
thermal: generic-adc: Fix adc to temp interpolation
HID: lenovo: Add checks to fix of_led_classdev_register
arm64/sve: ptrace: Fix SVE_PT_REGS_OFFSET definition
kernel/hung_task.c: break RCU locks based on jiffies
proc/sysctl: fix return error for proc_doulongvec_minmax()
kernel/hung_task.c: force console verbose before panic
fs/epoll: drop ovflist branch prediction
exec: load_script: don't blindly truncate shebang string
kernel/kcov.c: mark write_comp_data() as notrace
scripts/gdb: fix lx-version string output
xfs: Fix xqmstats offsets in /proc/fs/xfs/xqmstat
xfs: cancel COW blocks before swapext
xfs: Fix error code in 'xfs_ioc_getbmap()'
xfs: fix overflow in xfs_attr3_leaf_verify
xfs: fix shared extent data corruption due to missing cow reservation
xfs: fix transient reference count error in xfs_buf_resubmit_failed_buffers
xfs: delalloc -> unwritten COW fork allocation can go wrong
fs/xfs: fix f_ffree value for statfs when project quota is set
xfs: fix PAGE_MASK usage in xfs_free_file_space
xfs: fix inverted return from xfs_btree_sblock_verify_crc
thermal: hwmon: inline helpers when CONFIG_THERMAL_HWMON is not set
dccp: fool proof ccid_hc_[rt]x_parse_options()
enic: fix checksum validation for IPv6
lib/test_rhashtable: Make test_insert_dup() allocate its hash table dynamically
net: dp83640: expire old TX-skb
net: dsa: Fix lockdep false positive splat
net: dsa: Fix NULL checking in dsa_slave_set_eee()
net: dsa: mv88e6xxx: Fix counting of ATU violations
net: dsa: slave: Don't propagate flag changes on down slave interfaces
net/mlx5e: Force CHECKSUM_UNNECESSARY for short ethernet frames
net: systemport: Fix WoL with password after deep sleep
rds: fix refcount bug in rds_sock_addref
Revert "net: phy: marvell: avoid pause mode on SGMII-to-Copper for 88e151x"
rxrpc: bad unlock balance in rxrpc_recvmsg
sctp: check and update stream->out_curr when allocating stream_out
sctp: walk the list of asoc safely
skge: potential memory corruption in skge_get_regs()
virtio_net: Account for tx bytes and packets on sending xdp_frames
net/mlx5e: FPGA, fix Innova IPsec TX offload data path performance
xfs: eof trim writeback mapping as soon as it is cached
ALSA: compress: Fix stop handling on compressed capture streams
ALSA: usb-audio: Add support for new T+A USB DAC
ALSA: hda - Serialize codec registrations
ALSA: hda/realtek - Fix lose hp_pins for disable auto mute
ALSA: hda/realtek - Use a common helper for hp pin reference
ALSA: hda/realtek - Headset microphone support for System76 darp5
fuse: call pipe_buf_release() under pipe lock
fuse: decrement NR_WRITEBACK_TEMP on the right page
fuse: handle zero sized retrieve correctly
HID: debug: fix the ring buffer implementation
dmaengine: bcm2835: Fix interrupt race on RT
dmaengine: bcm2835: Fix abort of transactions
dmaengine: imx-dma: fix wrong callback invoke
futex: Handle early deadlock return correctly
irqchip/gic-v3-its: Plug allocation race for devices sharing a DevID
usb: phy: am335x: fix race condition in _probe
usb: dwc3: gadget: Handle 0 xfer length for OUT EP
usb: gadget: udc: net2272: Fix bitwise and boolean operations
usb: gadget: musb: fix short isoc packets with inventra dma
staging: speakup: fix tty-operation NULL derefs
scsi: cxlflash: Prevent deadlock when adapter probe fails
scsi: aic94xx: fix module loading
KVM: x86: work around leak of uninitialized stack contents (CVE-2019-7222)
kvm: fix kvm_ioctl_create_device() reference counting (CVE-2019-6974)
KVM: nVMX: unconditionally cancel preemption timer in free_nested (CVE-2019-7221)
cpu/hotplug: Fix "SMT disabled by BIOS" detection for KVM
perf/x86/intel/uncore: Add Node ID mask
x86/MCE: Initialize mce.bank in the case of a fatal error in mce_no_way_out()
perf/core: Don't WARN() for impossible ring-buffer sizes
perf tests evsel-tp-sched: Fix bitwise operator
serial: fix race between flush_to_ldisc and tty_open
serial: 8250_pci: Make PCI class test non fatal
serial: sh-sci: Do not free irqs that have already been freed
cacheinfo: Keep the old value if of_property_read_u32 fails
IB/hfi1: Add limit test for RC/UC send via loopback
perf/x86/intel: Delay memory deallocation until x86_pmu_dead_cpu()
ath9k: dynack: make ewma estimation faster
ath9k: dynack: check da->enabled first in sampling routines
Linux 4.19.21
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
[ Upstream commit e250d91d65750a0c0c62483ac4f9f357e7317617 ]
This fixes the case where all mount options specified are consumed by an
LSM and all that's left is an empty string. In this case cgroupfs should
accept the string and not fail.
How to reproduce (with SELinux enabled):
# umount /sys/fs/cgroup/unified
# mount -o context=system_u:object_r:cgroup_t:s0 -t cgroup2 cgroup2 /sys/fs/cgroup/unified
mount: /sys/fs/cgroup/unified: wrong fs type, bad option, bad superblock on cgroup2, missing codepage or helper program, or other error.
# dmesg | tail -n 1
[ 31.575952] cgroup: cgroup2: unknown option ""
Fixes: 67e9c74b8a ("cgroup: replace __DEVEL__sane_behavior with cgroup2 fs type")
[NOTE: should apply on top of commit 5136f6365c ("cgroup: implement "nsdelegate" mount option"), older versions need manual rebase]
Suggested-by: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
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Merge 4.19.14 into android-4.19
Changes in 4.19.14
ax25: fix a use-after-free in ax25_fillin_cb()
gro_cell: add napi_disable in gro_cells_destroy
ibmveth: fix DMA unmap error in ibmveth_xmit_start error path
ieee802154: lowpan_header_create check must check daddr
ip6mr: Fix potential Spectre v1 vulnerability
ipv4: Fix potential Spectre v1 vulnerability
ipv6: explicitly initialize udp6_addr in udp_sock_create6()
ipv6: tunnels: fix two use-after-free
ip: validate header length on virtual device xmit
isdn: fix kernel-infoleak in capi_unlocked_ioctl
net: clear skb->tstamp in forwarding paths
net/hamradio/6pack: use mod_timer() to rearm timers
net: ipv4: do not handle duplicate fragments as overlapping
net: macb: restart tx after tx used bit read
net: mvpp2: 10G modes aren't supported on all ports
net: phy: Fix the issue that netif always links up after resuming
netrom: fix locking in nr_find_socket()
net/smc: fix TCP fallback socket release
net: stmmac: Fix an error code in probe()
net/tls: allocate tls context using GFP_ATOMIC
net/wan: fix a double free in x25_asy_open_tty()
packet: validate address length
packet: validate address length if non-zero
ptr_ring: wrap back ->producer in __ptr_ring_swap_queue()
qmi_wwan: Added support for Fibocom NL668 series
qmi_wwan: Added support for Telit LN940 series
qmi_wwan: Add support for Fibocom NL678 series
sctp: initialize sin6_flowinfo for ipv6 addrs in sctp_inet6addr_event
sock: Make sock->sk_stamp thread-safe
tcp: fix a race in inet_diag_dump_icsk()
tipc: check tsk->group in tipc_wait_for_cond()
tipc: compare remote and local protocols in tipc_udp_enable()
tipc: fix a double free in tipc_enable_bearer()
tipc: fix a double kfree_skb()
tipc: use lock_sock() in tipc_sk_reinit()
vhost: make sure used idx is seen before log in vhost_add_used_n()
VSOCK: Send reset control packet when socket is partially bound
xen/netfront: tolerate frags with no data
net/mlx5: Typo fix in del_sw_hw_rule
tipc: check group dests after tipc_wait_for_cond()
net/mlx5e: Remove the false indication of software timestamping support
ipv6: frags: Fix bogus skb->sk in reassembled packets
net/ipv6: Fix a test against 'ipv6_find_idev()' return value
nfp: flower: ensure TCP flags can be placed in IPv6 frame
ipv6: route: Fix return value of ip6_neigh_lookup() on neigh_create() error
mscc: Configured MAC entries should be locked.
net/mlx5e: Cancel DIM work on close SQ
net/mlx5e: RX, Verify MPWQE stride size is in range
net: mvpp2: fix the phylink mode validation
qed: Fix command number mismatch between driver and the mfw
mlxsw: core: Increase timeout during firmware flash process
net/mlx5e: Remove unused UDP GSO remaining counter
net/mlx5e: RX, Fix wrong early return in receive queue poll
net: mvneta: fix operation for 64K PAGE_SIZE
net: Use __kernel_clockid_t in uapi net_stamp.h
r8169: fix WoL device wakeup enable
IB/hfi1: Incorrect sizing of sge for PIO will OOPs
ALSA: rme9652: Fix potential Spectre v1 vulnerability
ALSA: emu10k1: Fix potential Spectre v1 vulnerabilities
ALSA: pcm: Fix potential Spectre v1 vulnerability
ALSA: emux: Fix potential Spectre v1 vulnerabilities
powerpc/fsl: Fix spectre_v2 mitigations reporting
mtd: atmel-quadspi: disallow building on ebsa110
mtd: rawnand: marvell: prevent timeouts on a loaded machine
mtd: rawnand: omap2: Pass the parent of pdev to dma_request_chan()
ALSA: hda: add mute LED support for HP EliteBook 840 G4
ALSA: hda/realtek: Enable audio jacks of ASUS UX391UA with ALC294
ALSA: fireface: fix for state to fetch PCM frames
ALSA: firewire-lib: fix wrong handling payload_length as payload_quadlet
ALSA: firewire-lib: fix wrong assignment for 'out_packet_without_header' tracepoint
ALSA: firewire-lib: use the same print format for 'without_header' tracepoints
ALSA: hda/realtek: Enable the headset mic auto detection for ASUS laptops
ALSA: hda/tegra: clear pending irq handlers
usb: dwc2: host: use hrtimer for NAK retries
USB: serial: pl2303: add ids for Hewlett-Packard HP POS pole displays
USB: serial: option: add Fibocom NL678 series
usb: r8a66597: Fix a possible concurrency use-after-free bug in r8a66597_endpoint_disable()
usb: dwc2: disable power_down on Amlogic devices
Revert "usb: dwc3: pci: Use devm functions to get the phy GPIOs"
usb: roles: Add a description for the class to Kconfig
media: dvb-usb-v2: Fix incorrect use of transfer_flags URB_FREE_BUFFER
staging: wilc1000: fix missing read_write setting when reading data
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Clapper
ASoC: intel: cht_bsw_max98090_ti: Add pmc_plt_clk_0 quirk for Chromebook Gnawty
s390/pci: fix sleeping in atomic during hotplug
Input: atmel_mxt_ts - don't try to free unallocated kernel memory
Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G
x86/speculation/l1tf: Drop the swap storage limit restriction when l1tf=off
x86/mm: Drop usage of __flush_tlb_all() in kernel_physical_mapping_init()
KVM: x86: Use jmp to invoke kvm_spurious_fault() from .fixup
arm64: KVM: Make VHE Stage-2 TLB invalidation operations non-interruptible
KVM: nVMX: Free the VMREAD/VMWRITE bitmaps if alloc_kvm_area() fails
platform-msi: Free descriptors in platform_msi_domain_free()
drm/v3d: Skip debugfs dumping GCA on platforms without GCA.
DRM: UDL: get rid of useless vblank initialization
clocksource/drivers/arc_timer: Utilize generic sched_clock
perf machine: Record if a arch has a single user/kernel address space
perf thread: Add fallback functions for cases where cpumode is insufficient
perf tools: Use fallback for sample_addr_correlates_sym() cases
perf script: Use fallbacks for branch stacks
perf pmu: Suppress potential format-truncation warning
perf env: Also consider env->arch == NULL as local operation
ocxl: Fix endiannes bug in ocxl_link_update_pe()
ocxl: Fix endiannes bug in read_afu_name()
ext4: add ext4_sb_bread() to disambiguate ENOMEM cases
ext4: fix possible use after free in ext4_quota_enable
ext4: missing unlock/put_page() in ext4_try_to_write_inline_data()
ext4: fix EXT4_IOC_GROUP_ADD ioctl
ext4: include terminating u32 in size of xattr entries when expanding inodes
ext4: avoid declaring fs inconsistent due to invalid file handles
ext4: force inode writes when nfsd calls commit_metadata()
ext4: check for shutdown and r/o file system in ext4_write_inode()
spi: bcm2835: Fix race on DMA termination
spi: bcm2835: Fix book-keeping of DMA termination
spi: bcm2835: Avoid finishing transfer prematurely in IRQ mode
clk: rockchip: fix typo in rk3188 spdif_frac parent
clk: sunxi-ng: Use u64 for calculation of NM rate
crypto: cavium/nitrox - fix a DMA pool free failure
crypto: chcr - small packet Tx stalls the queue
crypto: testmgr - add AES-CFB tests
crypto: cfb - fix decryption
cgroup: fix CSS_TASK_ITER_PROCS
cdc-acm: fix abnormal DATA RX issue for Mediatek Preloader.
btrfs: dev-replace: go back to suspended state if target device is missing
btrfs: dev-replace: go back to suspend state if another EXCL_OP is running
btrfs: skip file_extent generation check for free_space_inode in run_delalloc_nocow
Btrfs: fix fsync of files with multiple hard links in new directories
btrfs: run delayed items before dropping the snapshot
Btrfs: send, fix race with transaction commits that create snapshots
brcmfmac: fix roamoff=1 modparam
brcmfmac: Fix out of bounds memory access during fw load
powerpc/tm: Unset MSR[TS] if not recheckpointing
dax: Don't access a freed inode
dax: Use non-exclusive wait in wait_entry_unlocked()
f2fs: read page index before freeing
f2fs: fix validation of the block count in sanity_check_raw_super
f2fs: sanity check of xattr entry size
serial: uartps: Fix interrupt mask issue to handle the RX interrupts properly
media: cec: keep track of outstanding transmits
media: cec-pin: fix broken tx_ignore_nack_until_eom error injection
media: rc: cec devices do not have a lirc chardev
media: imx274: fix stack corruption in imx274_read_reg
media: vivid: free bitmap_cap when updating std/timings/etc.
media: vb2: check memory model for VIDIOC_CREATE_BUFS
media: v4l2-tpg: array index could become negative
tools lib traceevent: Fix processing of dereferenced args in bprintk events
MIPS: math-emu: Write-protect delay slot emulation pages
MIPS: c-r4k: Add r4k_blast_scache_node for Loongson-3
MIPS: Ensure pmd_present() returns false after pmd_mknotpresent()
MIPS: Align kernel load address to 64KB
MIPS: Expand MIPS32 ASIDs to 64 bits
MIPS: OCTEON: mark RGMII interface disabled on OCTEON III
MIPS: Fix a R10000_LLSC_WAR logic in atomic.h
CIFS: Fix error mapping for SMB2_LOCK command which caused OFD lock problem
smb3: fix large reads on encrypted connections
arm64: KVM: Avoid setting the upper 32 bits of VTCR_EL2 to 1
arm/arm64: KVM: vgic: Force VM halt when changing the active state of GICv3 PPIs/SGIs
ARM: dts: exynos: Specify I2S assigned clocks in proper node
rtc: m41t80: Correct alarm month range with RTC reads
KVM: arm/arm64: vgic: Do not cond_resched_lock() with IRQs disabled
KVM: arm/arm64: vgic: Cap SPIs to the VM-defined maximum
KVM: arm/arm64: vgic-v2: Set active_source to 0 when restoring state
KVM: arm/arm64: vgic: Fix off-by-one bug in vgic_get_irq()
iommu/arm-smmu-v3: Fix big-endian CMD_SYNC writes
arm64: compat: Avoid sending SIGILL for unallocated syscall numbers
tpm: tpm_try_transmit() refactor error flow.
tpm: tpm_i2c_nuvoton: use correct command duration for TPM 2.x
spi: bcm2835: Unbreak the build of esoteric configs
MIPS: Only include mmzone.h when CONFIG_NEED_MULTIPLE_NODES=y
Linux 4.19.14
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
Shaokun Zhang
Roman Gushchin
Shakeel Butt
Al Viro
Tejun Heo
Yangtao Li
Greg Kroah-Hartman
Yang Yingliang
Cong Wang
Tycho Andersen
Vasily Averin
Michal Koutný
Aleksa Sarai
Joel Savitz
Roman Kiryanov
Oleg Nesterov
Suren Baghdasaryan
Johannes Weiner
Ondrej Mosnacek