Since bnx2fc_percpu_thread_create() creates percpu kthread, it makes
sense to use kthread_create_on_node() to get proper NUMA affinity for
kthread stack.
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
scsi_wait_scan was introduced with asynchronous host scanning as a hack
for distributions that weren't using proper udev based wait for root to
appear in their initramfs scripts. In 2.6.30 Commit
c751085943
Author: Rafael J. Wysocki <rjw@sisk.pl>
Date: Sun Apr 12 20:06:56 2009 +0200
PM/Hibernate: Wait for SCSI devices scan to complete during resume
Actually broke scsi_wait_scan because it renders
scsi_complete_async_scans() a nop for modular SCSI if you include
scsi_scans.h (which this module does).
The lack of bug reports is sufficient proof that this module is no
longer used.
Cc: Jeff Mahoney <jeffm@suse.de>
Cc: Dave Jones <davej@redhat.com>
Cc: maximilian attems <max@stro.at>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Updates newly added stats from fc_get_host_stats,
added new function fc_exch_update_stats to
update exches related stats from fc_exch.c
by going thru internal ema_list elements.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Acked-by : Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Adds stats to track FCP pkt and frame alloc
failure.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Acked-by : Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The libfc is used by fcoe but fcoe agnostic,
and therefore should not have any fcoe references.
So renaming fcoe_dev_stats from libfc as its for fc_stats.
After that libfc is fcoe string free except some strings for
Open-FCoE.org.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Acked-by : Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Acked-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
The libfc provides more flexibility and with that
we can monitor some more FC specific stats for
FC exches or FCP error cases, this patch add
such new FC stats.
The patch adds *only* FC specific new stats to
existing fc_host attribute container.
Added stats names are self explanatory as
existing FC stats already has, however anyway
still added commentary along their definition
to describe them.
Signed-off-by: Vasu Dev <vasu.dev@intel.com>
Acked-by : Robert Love <robert.w.love@intel.com>
Tested-by: Ross Brattain <ross.b.brattain@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Pull last minute Ceph fixes from Sage Weil:
"The important one fixes a bug in the socket failure handling behavior
that was turned up in some recent failure injection testing. The
other two are minor bug fixes."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client:
rbd: endian bug in rbd_req_cb()
rbd: Fix ceph_snap_context size calculation
libceph: fix messenger retry
One of the bugs was introduced in 3.5-rc1. Others have
been there for longer.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.18 (GNU/Linux)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=zpJG
-----END PGP SIGNATURE-----
Merge tag 'md-3.5-fixes' of git://neil.brown.name/md
Pull three md bugfixes from NeilBrown:
"One of the bugs was introduced in 3.5-rc1. Others have been there for
longer."
* tag 'md-3.5-fixes' of git://neil.brown.name/md:
md/raid1: close some possible races on write errors during resync
md: avoid crash when stopping md array races with closing other open fds.
md: fix bug in handling of new_data_offset
Pull networking changes from David Miller:
"Ok, we should be good to go now"
1) We have to statically initialize the init_net device list head rather
than do so in an initcall, otherwise netprio_cgroup crashes if it's
built statically rather than modular (Mark D. Rustad)
2) Fix SKB null oopser in CIPSO ipv4 option processing (Paul Moore)
3) Qlogic maintainers update (Anirban Chakraborty)
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net:
net: Statically initialize init_net.dev_base_head
MAINTAINERS: Changes in qlcnic and qlge maintainers list
cipso: don't follow a NULL pointer when setsockopt() is called
Pull HID update from Jiri Kosina:
"A final round of changes for HID for 3.5: just device ID additions."
* 'upstream-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: hid-multitouch: add support for Zytronic panels
HID: add Sennheiser BTD500USB device support
HID: add battery quirk for Apple Wireless ANSI
The strcpy was being used to set the name of the board. Since the
destination char* was read-only and the name is set statically at
compile time; this was both wrong and redundant.
The type of char* is changed to const char* to prevent future errors.
Reported-by: Radek Masin <radek@masin.eu>
Signed-off-by: Ezequiel Garcia <elezegarcia@gmail.com>
[ Taking directly due to vacations - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
commit 4367af5561
md/raid1: clear bad-block record when write succeeds.
Added a 'reschedule_retry' call possibility at the end of
end_sync_write, but didn't add matching code at the end of
sync_request_write. So if the writes complete very quickly, or
scheduling makes it seem that way, then we can miss rescheduling
the request and the resync could hang.
Also commit 73d5c38a95
md: avoid races when stopping resync.
Fix a race condition in this same code in end_sync_write but didn't
make the change in sync_request_write.
This patch updates sync_request_write to fix both of those.
Patch is suitable for 3.1 and later kernels.
Reported-by: Alexander Lyakas <alex.bolshoy@gmail.com>
Original-version-by: Alexander Lyakas <alex.bolshoy@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: NeilBrown <neilb@suse.de>
md will refuse to stop an array if any other fd (or mounted fs) is
using it.
When any fs is unmounted of when the last open fd is closed all
pending IO will be flushed (e.g. sync_blockdev call in __blkdev_put)
so there will be no pending IO to worry about when the array is
stopped.
However in order to send the STOP_ARRAY ioctl to stop the array one
must first get and open fd on the block device.
If some fd is being used to write to the block device and it is closed
after mdadm open the block device, but before mdadm issues the
STOP_ARRAY ioctl, then there will be no last-close on the md device so
__blkdev_put will not call sync_blockdev.
If this happens, then IO can still be in-flight while md tears down
the array and bad things can happen (use-after-free and subsequent
havoc).
So in the case where do_md_stop is being called from an open file
descriptor, call sync_block after taking the mutex to ensure there
will be no new openers.
This is needed when setting a read-write device to read-only too.
Cc: stable@vger.kernel.org
Reported-by: majianpeng <majianpeng@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
commit c6563a8c38
md: add possibility to change data-offset for devices.
introduced a 'new_data_offset' attribute which should normally
be the same as 'data_offset', but can be explicitly set to a different
value to allow a reshape operation to move the data.
Unfortunately when the 'data_offset' is explicitly set through
sysfs, the new_data_offset is not also set, so the two would become
out-of-sync incorrectly.
One result of this is that trying to set the 'size' after the
'data_offset' would fail because it is not permitted to set the size
when the 'data_offset' and 'new_data_offset' are different - as that
can be confusing.
Consequently when mdadm tried to do this while assembling an IMSM
array it would fail.
This bug was introduced in 3.5-rc1.
Reported-by: Brian Downing <bdowning@lavos.net>
Bisected-by: Brian Downing <bdowning@lavos.net>
Tested-by: Brian Downing <bdowning@lavos.net>
Signed-off-by: NeilBrown <neilb@suse.de>
Pull target fixes from Nicholas Bellinger:
"This includes a bugfix from MDR to address a NULL pointer OOPs with
FCoE aborts, along with a WRITE_SAME emulation bugfix for NOLB=0
cases, and persistent reservation return cleanups from Roland.
All three patches are CC'ed to stable."
* git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending:
target: Fix range calculation in WRITE SAME emulation when num blocks == 0
target: Clean up returning errors in PR handling code
tcm_fc: Fix crash seen with aborts and large reads
The referenced html file does not exist anymore. Replace the URL with
the current project homepage.
Signed-off-by: Olaf Hering <olaf@aepfle.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit 377780887 ("bug.h: need linux/kernel.h for TAINT_WARN.") broke
all MIPS builds:
CC arch/mips/kernel/machine_kexec.o
include/linux/log2.h: In function '__ilog2_u32':
include/linux/log2.h:34:2: error: implicit declaration of function 'fls' [-Werror=implicit-function-declaration]
include/linux/log2.h: In function '__ilog2_u64':
include/linux/log2.h:42:2: error: implicit declaration of function 'fls64' [-Werror=implicit-function-declaration]
...
Signed-off-by: Yoichi Yuasa <yuasa@linux-mips.org>
Tested-by: John Crispin <blogic@openwrt.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: David Daney <ddaney@caviumnetworks.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit a7a20d1039 ("sd: limit the scope of the async probe domain")
make the SCSI device probing run device discovery in it's own async
domain.
However, as a result, the partition detection was no longer synchronized
by async_synchronize_full() (which, despite the name, only synchronizes
the global async space, not all of them). Which in turn meant that
"wait_for_device_probe()" would not wait for the SCSI partitions to be
parsed.
And "wait_for_device_probe()" was what the boot time init code relied on
for mounting the root filesystem.
Now, most people never noticed this, because not only is it
timing-dependent, but modern distributions all use initrd. So the root
filesystem isn't actually on a disk at all. And then before they
actually mount the final disk filesystem, they will have loaded the
scsi-wait-scan module, which not only does the expected
wait_for_device_probe(), but also does scsi_complete_async_scans().
[ Side note: scsi_complete_async_scans() had also been partially broken,
but that was fixed in commit 43a8d39d01 ("fix async probe
regression"), so that same commit a7a20d1039 had actually broken
setups even if you used scsi-wait-scan explicitly ]
Solve this problem by just moving the scsi_complete_async_scans() call
into wait_for_device_probe(). Everybody who wants to wait for device
probing to finish really wants the SCSI probing to complete, so there's
no reason not to do this.
So now "wait_for_device_probe()" really does what the name implies, and
properly waits for device probing to finish. This also removes the now
unnecessary extra calls to scsi_complete_async_scans().
Reported-and-tested-by: Artem S. Tashkinov <t.artem@mailcity.com>
Cc: Dan Williams <dan.j.williams@gmail.com>
Cc: Alan Stern <stern@rowland.harvard.edu>
Cc: James Bottomley <jbottomley@parallels.com>
Cc: Borislav Petkov <bp@amd64.org>
Cc: linux-scsi <linux-scsi@vger.kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Pull SELinux regression fixes from James Morris.
Andrew Morton has a box that hit that open perms problem.
I also renamed the "epollwakeup" selinux name for the new capability to
be "block_suspend", to match the rename done by commit d9914cf661
("PM: Rename CAP_EPOLLWAKEUP to CAP_BLOCK_SUSPEND").
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
SELinux: do not check open perms if they are not known to policy
SELinux: include definition of new capabilities
This change eliminates an initialization-order hazard most
recently seen when netprio_cgroup is built into the kernel.
With thanks to Eric Dumazet for catching a bug.
Signed-off-by: Mark Rustad <mark.d.rustad@intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
One more time/ntp fix pulled from Ingo Molnar.
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
ntp: Fix STA_INS/DEL clearing bug
The VIDIOC_DV_TIMINGS_CAP ioctl check wasn't added to determine_valid_ioctls().
This caused this ioctl to always return -ENOTTY.
The cause for this was that for 3.5 two patch series were merged, one
changing V4L2 core ioctl handling and one adding new functionality, and
some of the new functionality wasn't handled by the new V4L2 core code.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
[ Taking it directly due to vacations - Linus ]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
These are arriving very late in the release cycle, but there has been
a change of maintainers on the SPEAr platform and they have needed a
while to get going.
The patch count is higher than I would like at this point, but they're
all relevant fixes and well-contained in their own platform code. I still
think it's suitable 3.5 material and I don't think it should increase
the need for a -rc8 since they are so contained.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)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=cBuT
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes for SPEAr from Olof Johansson:
"These are arriving very late in the release cycle, but there has been
a change of maintainers on the SPEAr platform and they have needed a
while to get going.
The patch count is higher than I would like at this point, but they're
all relevant fixes and well-contained in their own platform code. I
still think it's suitable 3.5 material and I don't think it should
increase the need for a -rc8 since they are so contained."
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: SPEAr600: Fix timer interrupt definition in spear600.dtsi
ARM: dts: SPEAr320: Boot the board in EXTENDED_MODE
ARM: dts: SPEAr320: Fix compatible string
Clk: SPEAr1340: Update sys clock parent array
clk: SPEAr1340: Fix clk enable register for uart1 and i2c1.
ARM: SPEAr13xx: Fix Interrupt bindings
Clk:spear6xx:Fix: Rename clk ids within predefined limit
Clk:spear3xx:Fix: Rename clk ids within predefined limit
clk:spear1310:Fix: Rename clk ids within predefined limit
clk:spear1340:Fix: Rename clk ids within predefined limit
Pull CIFS fixes from Steve French.
* git://git.samba.org/sfrench/cifs-2.6:
cifs: always update the inode cache with the results from a FIND_*
cifs: when CONFIG_HIGHMEM is set, serialize the read/write kmaps
cifs: on CONFIG_HIGHMEM machines, limit the rsize/wsize to the kmap space
Initialise mid_q_entry before putting it on the pending queue
As reported by Alan Cox, and verified by Lin Ming, when a user
attempts to add a CIPSO option to a socket using the CIPSO_V4_TAG_LOCAL
tag the kernel dies a terrible death when it attempts to follow a NULL
pointer (the skb argument to cipso_v4_validate() is NULL when called via
the setsockopt() syscall).
This patch fixes this by first checking to ensure that the skb is
non-NULL before using it to find the incoming network interface. In
the unlikely case where the skb is NULL and the user attempts to add
a CIPSO option with the _TAG_LOCAL tag we return an error as this is
not something we want to allow.
A simple reproducer, kindly supplied by Lin Ming, although you must
have the CIPSO DOI #3 configure on the system first or you will be
caught early in cipso_v4_validate():
#include <sys/types.h>
#include <sys/socket.h>
#include <linux/ip.h>
#include <linux/in.h>
#include <string.h>
struct local_tag {
char type;
char length;
char info[4];
};
struct cipso {
char type;
char length;
char doi[4];
struct local_tag local;
};
int main(int argc, char **argv)
{
int sockfd;
struct cipso cipso = {
.type = IPOPT_CIPSO,
.length = sizeof(struct cipso),
.local = {
.type = 128,
.length = sizeof(struct local_tag),
},
};
memset(cipso.doi, 0, 4);
cipso.doi[3] = 3;
sockfd = socket(AF_INET, SOCK_DGRAM, 0);
#define SOL_IP 0
setsockopt(sockfd, SOL_IP, IP_OPTIONS,
&cipso, sizeof(struct cipso));
return 0;
}
CC: Lin Ming <mlin@ss.pku.edu.cn>
Reported-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
On spear320 device supported mode are:
* AUTO_NET_SMII_MODE
* AUTO_NET_MII_MODE
* AUTO_EXP_MODE
* SMALL_PRINTERS_MODE
* EXTENDED_MODE
spear320-evb board is designed for EXTENDED_MODE only, hence it does not
boot correctly in current form where pinctrl part for some devices fail.
Configure and boot the SPEAr320 evaluation board in EXTENDED_MODE.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
sys_clk has multiple parents and selection of parent depends on sys_clk_ctrl
register bit no. 23:25, with following possibilities
0XX: pll1_clk
10X: sys_synth_clk
110: pll2_clk
111: pll3_clk
Out of several possibilities (h/w wise) to select same clock parent for
sys_clk, current clock implementation was considering just one value.
When bootloader programmed different (valid) value to select a clock
parent then Linux breaks.
Here, we try to include all possibilities which can lead to same
clock selection thus making Linux independent of bootloader selection
values.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
This patch is to fix typing mistake of clk enable register of i2c1 and
uart1.
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
The max limit of con_id is 16 and dev_id is 20. As of now for spear6xx, many clk
ids are exceeding this predefined limit.
This patch is intended to rename clk ids like:
mux_clk -> _mclk
gate_clk -> _gclk
synth_clk -> syn_clk
ras_gen1_synth_gate_clk -> ras_syn1_gclk
pll3_48m -> pll3_
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
The max limit of con_id is 16 and dev_id is 20. As of now for spear3xx, many clk
ids are exceeding this predefined limit.
This patch is intended to rename clk ids like:
mux_clk -> _mclk
gate_clk -> _gclk
synth_clk -> syn_clk
ras_gen1_synth_gate_clk -> ras_syn1_gclk
ras_pll3_48m -> ras_pll3_
pll3_48m -> pll3_
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
The max limit of con_id is 16 and dev_id is 20. As of now for spear1310, many
clk ids are exceeding this predefined limit.
This patch is intended to rename clk ids like:
mux_clk -> _mclk
gate_clk -> _gclk
synth_clk -> syn_clk
gmac_phy -> phy_
gmii_125m_pad -> gmii_pad
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
The max limit of con_id is 16 and dev_id is 20. As of now for spear1340, many
clk ids are exceeding this predefined limit.
This patch rename clk ids like:
mux_clk -> _mclk
gate_clk -> _gclk
synth_clk -> syn_clk
gmac_phy -> phy_
gmii_125m_pad_ -> gmii_pad
Signed-off-by: Vipul Kumar Samar <vipulkumar.samar@st.com>
Signed-off-by: Shiraz Hashim <shiraz.hashim@st.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Sparse complains about this because:
drivers/block/rbd.c:996:20: warning: cast to restricted __le32
drivers/block/rbd.c:996:20: warning: cast from restricted __le16
These are set in osd_req_encode_op() and they are le16.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Alex Elder <elder@inktank.com>
(cherry picked from commit 895cfcc810)
ceph_snap_context->snaps is an u64 array
Signed-off-by: Zheng Yan <zheng.z.yan@intel.com>
Reviewed-by: Alex Elder <elder@inktank.com>
(cherry picked from commit f9f9a19044)
In ancient times, the messenger could both initiate and accept connections.
An artifact if that was data structures to store/process an incoming
ceph_msg_connect request and send an outgoing ceph_msg_connect_reply.
Sadly, the negotiation code was referencing those structures and ignoring
important information (like the peer's connect_seq) from the correct ones.
Among other things, this fixes tight reconnect loops where the server sends
RETRY_SESSION and we (the client) retries with the same connect_seq as last
time. This bug pretty easily triggered by injecting socket failures on the
MDS and running some fs workload like workunits/direct_io/test_sync_io.
Signed-off-by: Sage Weil <sage@inktank.com>
Merge Andrew's remaining patches for 3.5:
"Nine fixes"
* Merge emailed patches from Andrew Morton <akpm@linux-foundation.org>: (9 commits)
mm: fix lost kswapd wakeup in kswapd_stop()
m32r: make memset() global for CONFIG_KERNEL_BZIP2=y
m32r: add memcpy() for CONFIG_KERNEL_GZIP=y
m32r: consistently use "suffix-$(...)"
m32r: fix 'fix breakage from "m32r: use generic ptrace_resume code"' fallout
m32r: fix pull clearing RESTORE_SIGMASK into block_sigmask() fallout
m32r: remove duplicate definition of PTRACE_O_TRACESYSGOOD
mn10300: fix "pull clearing RESTORE_SIGMASK into block_sigmask()" fallout
bootmem: make ___alloc_bootmem_node_nopanic() really nopanic
Offlining memory may block forever, waiting for kswapd() to wake up
because kswapd() does not check the event kthread->should_stop before
sleeping.
The proper pattern, from Documentation/memory-barriers.txt, is:
--- waker ---
event_indicated = 1;
wake_up_process(event_daemon);
--- sleeper ---
for (;;) {
set_current_state(TASK_UNINTERRUPTIBLE);
if (event_indicated)
break;
schedule();
}
set_current_state() may be wrapped by:
prepare_to_wait();
In the kswapd() case, event_indicated is kthread->should_stop.
=== offlining memory (waker) ===
kswapd_stop()
kthread_stop()
kthread->should_stop = 1
wake_up_process()
wait_for_completion()
=== kswapd_try_to_sleep (sleeper) ===
kswapd_try_to_sleep()
prepare_to_wait()
.
.
schedule()
.
.
finish_wait()
The schedule() needs to be protected by a test of kthread->should_stop,
which is wrapped by kthread_should_stop().
Reproducer:
Do heavy file I/O in background.
Do a memory offline/online in a tight loop
Signed-off-by: Aaditya Kumar <aaditya.kumar@ap.sony.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reviewed-by: Minchan Kim <minchan@kernel.org>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the m32r link error:
LD arch/m32r/boot/compressed/vmlinux
arch/m32r/boot/compressed/misc.o: In function `zlib_updatewindow':
misc.c:(.text+0x190): undefined reference to `memcpy'
misc.c:(.text+0x190): relocation truncated to fit: R_M32R_26_PLTREL against undefined symbol `memcpy'
make[5]: *** [arch/m32r/boot/compressed/vmlinux] Error 1
by adding our own implementation of memcpy().
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit a556bec995 ("m32r: fix arch/m32r/boot/compressed/Makefile")
changed "$(suffix_y)" to "$(suffix-y)", but didn't update any location
where "suffix_y" is set, causing:
make[5]: *** No rule to make target `arch/m32r/boot/compressed/vmlinux.bin.', needed by `arch/m32r/boot/compressed/piggy.o'. Stop.
make[4]: *** [arch/m32r/boot/compressed/vmlinux] Error 2
make[3]: *** [zImage] Error 2
Correct the other locations to fix this.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit acdc0d5ef9 ('m32r: fix breakage from "m32r: use generic
ptrace_resume code"') tried to fix a problem in commit e34112e396
("m32r: use generic ptrace_resume code") by returning values in a
function returning void, causing:
arch/m32r/kernel/ptrace.c: In function 'user_enable_single_step':
arch/m32r/kernel/ptrace.c:594:3: warning: 'return' with a value, in function returning void [enabled by default]
arch/m32r/kernel/ptrace.c:598:3: warning: 'return' with a value, in function returning void [enabled by default]
arch/m32r/kernel/ptrace.c:601:3: warning: 'return' with a value, in function returning void [enabled by default]
arch/m32r/kernel/ptrace.c:604:2: warning: 'return' with a value, in function returning void [enabled by default]
Remove the unneeded return values.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Commit a610d6e672 ("pull clearing RESTORE_SIGMASK into
block_sigmask()") caused:
arch/m32r/kernel/signal.c: In function 'handle_signal':
arch/m32r/kernel/signal.c:289:6: warning: 'return' with a value, in function returning void [enabled by default]
Remove the return value it forgot to remove.
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the m32r build warning:
include/linux/ptrace.h:66:0: warning: "PTRACE_O_TRACESYSGOOD" redefined [enabled by default]
arch/m32r/include/asm/ptrace.h:117:0: note: this is the location of the previous definition
We already have it in <linux/ptrace.h>, so remove it from <asm/ptrace.h>
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
