fix the following 'make headers_check' warnings:
usr/include/linux/nfsd/syscall.h:12: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/linux/nfsd/syscall.h:104: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
The smp_call_function can be passed a wait parameter telling it to
wait for all the functions running on other CPUs to complete before
returning, or to return without waiting. Unfortunately, this is
currently just a suggestion and not manditory. That is, the
smp_call_function can decide not to return and wait instead.
The reason for this is because it uses kmalloc to allocate storage
to send to the called CPU and that CPU will free it when it is done.
But if we fail to allocate the storage, the stack is used instead.
This means we must wait for the called CPU to finish before
continuing.
Unfortunatly, some callers do no abide by this hint and act as if
the non-wait option is mandatory. The MTRR code for instance will
deadlock if the smp_call_function is set to wait. This is because
the smp_call_function will wait for the other CPUs to finish their
called functions, but those functions are waiting on the caller to
continue.
This patch changes the generic smp_call_function code to use per cpu
variables if the allocation of the data fails for a single CPU call. The
smp_call_function_many will fall back to the smp_call_function_single
if it fails its alloc. The smp_call_function_single is modified
to not force the wait state.
Since we now are using a single data per cpu we must synchronize the
callers to prevent a second caller modifying the data before the
first called IPI functions complete. To do so, I added a flag to
the call_single_data called CSD_FLAG_LOCK. When the single CPU is
called (which can be called when a many call fails an alloc), we
set the LOCK bit on this per cpu data. When the caller finishes
it clears the LOCK bit.
The caller must wait till the LOCK bit is cleared before setting
it. When it is cleared, there is no IPI function using it.
Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Jens Axboe <jens.axboe@oracle.com>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: Remove bogus BUG() check in ext4_bmap()
ext4: Fix building with EXT4FS_DEBUG
ext4: Initialize the new group descriptor when resizing the filesystem
ext4: Fix ext4_free_blocks() w/o a journal when files have indirect blocks
jbd2: On a __journal_expect() assertion failure printk "JBD2", not "EXT3-fs"
ext3: Add sanity check to make_indexed_dir
ext4: Add sanity check to make_indexed_dir
ext4: only use i_size_high for regular files
ext4: fix wrong use of do_div
* 'for-linus' of git://git.kernel.dk/linux-2.6-block:
cfq-iosched: Allow RT requests to pre-empt ongoing BE timeslice
block: add sysfs file for controlling io stats accounting
Mark mandatory elevator functions in the biodoc.txt
include/linux: Add bsg.h to the Kernel exported headers
block: silently error an unsupported barrier bio
block: Fix documentation for blkdev_issue_flush()
block: add bio_rw_flagged() for testing bio->bi_rw
block: seperate bio/request unplug and sync bits
block: export SSD/non-rotational queue flag through sysfs
Fix small typo in bio.h's documentation
block: get rid of the manual directory counting in blktrace
block: Allow empty integrity profile
block: Remove obsolete BUG_ON
block: Don't verify integrity metadata on read error
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (29 commits)
tulip: fix 21142 with 10Mbps without negotiation
drivers/net/skfp: if !capable(CAP_NET_ADMIN): inverted logic
gianfar: Fix Wake-on-LAN support
smsc911x: timeout reaches -1
smsc9420: fix interrupt signalling test failures
ucc_geth: Change uec phy id to the same format as gianfar's
wimax: fix build issue when debugfs is disabled
netxen: fix memory leak in drivers/net/netxen_nic_init.c
tun: Add some missing TUN compat ioctl translations.
ipv4: fix infinite retry loop in IP-Config
net: update documentation ip aliases
net: Fix OOPS in skb_seq_read().
net: Fix frag_list handling in skb_seq_read
netxen: revert jumbo ringsize
ath5k: fix locking in ath5k_config
cfg80211: print correct intersected regulatory domain
cfg80211: Fix sanity check on 5 GHz when processing country IE
iwlwifi: fix kernel oops when ucode DMA memory allocation failure
rtl8187: Fix error in setting OFDM power settings for RTL8187L
mac80211: remove Michael Wu as maintainer
...
This fixes a crash observed when non-existant enable_ms function is
called for jsm driver.
Signed-off-by: Scott Kilau <Scott.Kilau@digi.com>
Signed-off-by: Paul Larson <pl@linux.vnet.ibm.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch updates the mpc5200 binding documentation to match
actual usage conventions, to remove incorrect information, and
to remove topics which are more thoroughly described elsewhere.
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
Reviewed-by: Wolfram Sang <w.sang@pengutronix.de>
Impact: fix debug_smp_processor_id() for CONFIG_CPUMASK_OFFSTACK=y
The scheduler now uses the new cpumask API, which deals up to
nr_cpumask_bits, whereas the API used NR_CPUS bits.
If CONFIG_CPUMASK_OFFSTACK=y these two are not equal, so the top bits
are undefined. Leading to bug 12518 "BUG: using smp_processor_id() in
preemptible [00000000] code: dellWirelessCtl/..."
The fix is simple: use the modern API in the check.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Mike Travis <travis@sgi.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
fix the following 'make headers_check' warnings:
usr/include/linux/nfsd/nfsfh.h:17: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/linux/nfsd/nfsfh.h:28: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
fix the following 'make headers_check' warning:
usr/include/linux/nfsd/export.h:13: include of <linux/types.h> is preferred over <asm/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
fix the following 'make headers_check' warning:
usr/include/linux/netfilter/xt_conntrack.h:40: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
fix the following 'make headers_check' warnings:
usr/include/linux/dvb/video.h:29: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/linux/dvb/video.h:102: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
fix the following 'make headers_check' warnings:
usr/include/linux/dvb/net.h:27: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/linux/dvb/net.h:31: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
fix the following 'make headers_check' warnings:
usr/include/linux/dvb/frontend.h:29: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/linux/dvb/frontend.h:76: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
fix the following 'make headers_check' warnings:
usr/include/linux/dvb/dmx.h:27: include of <linux/types.h> is preferred over <asm/types.h>
usr/include/linux/dvb/dmx.h:90: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
fix the following 'make headers_check' warning:
usr/include/linux/dvb/audio.h:133: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
fix the following 'make headers_check' warning:
usr/include/linux/can/bcm.h:29: found __[us]{8,16,32,64} type without #include <linux/types.h>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
This patch adds the ability to pre-empt an ongoing BE timeslice when a RT
request is waiting for the current timeslice to complete. This reduces the
wait time to disk for RT requests from an upper bound of 4 (current value
of cfq_quantum) to 1 disk request.
Applied Jens' suggeested changes to avoid the rb lookup and use !cfq_class_rt()
and retested.
Latency(secs) for the RT task when doing sequential reads from 10G file.
| only RT | RT + BE | RT + BE + this patch
small (512 byte) reads | 143 | 163 | 145
large (1Mb) reads | 142 | 158 | 146
Signed-off-by: Divyesh Shah <dpshah@google.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This allows us to turn off disk stat accounting completely, for the cases
where the 0.5-1% reduction in system time is important.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
biodoc.txt mentions that elevator functions marked with * are mandatory, but
no function is marked with *. Mark the 3 functions which should be
implemented by any io scheduler.
Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
bsg.h in current form is perfectly suitable for user-mode
consumption. It is needed together with scsi/sg.h for applications
that want to interface with the bsg driver.
Currently the few projects that use it would copy it over into
the projects. But that is not acceptable for projects that need
to provide source and devel packages for distros.
This should also be submitted to stable 2.6.28 and 2.6.27 since bsg had
a stable API since these Kernels and distro users will need the header
for these kernels a swell
Signed-off-by: Boaz Harrosh <bharrosh@panasas.com>
Acked-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
CC: stable@kernel.org
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
This fixes a "regression" from 2.6.28, where the barrier probes that file
systems may do would trigger additional end request warnings in dmesg.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
The existing functions for checking bio->bi_rw are badly named. So lets
mirror what we do for bio->bi_flags testing, use a properly named
function so that it's immediately obvious what is being tested.
Maintain compatability names for the old macros, eventually we'll get
rid of these.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
For some devices (i.e. CFA ATA) we can't reliably detect whether
the device is of rotational or non-rotational type so we need to
leave the final decision about this setting to the user-space.
As a bonus do a minor CodingStyle fixup in queue_nomerges_store().
Suggested-by: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Allow a block device to allocate and register an integrity profile
without providing a template. This allows DM to preallocate a profile
to avoid deadlocks during table reconfiguration.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
Now that bio_vecs are no longer cleared in bvec_alloc_bs() the following
BUG_ON must go.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
If we get an I/O error on a read request there is no point in doing a
verify pass on the integrity buffer. Adjust the completion path
accordingly.
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
The code to support journal-less ext4 operation added a BUG to
ext4_bmap() which fired if there was no journal and the
EXT4_STATE_JDATA bit was set in the i_state field. This caused
running the filefrag program (which uses the FIMBAP ioctl) to trigger
a BUG().
The EXT4_STATE_JDATA bit is only used for ext4_bmap(), and it's
harmless for the bit to be set. We could add a check in
__ext4_journalled_writepage() and ext4_journalled_write_end() to only
set the EXT4_STATE_JDATA bit if the journal is present, but that adds
an extra test and jump instruction. It's easier to simply remove the
BUG check.
http://bugzilla.kernel.org/show_bug.cgi?id=12568
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org
* git://git.kernel.org/pub/scm/linux/kernel/git/sfrench/cifs-2.6:
cifs: make sure we allocate enough storage for socket address
[CIFS] Make socket retry timeouts consistent between blocking and nonblocking cases
[CIFS] some cleanup to dir.c prior to addition of posix_open
[CIFS] revalidate parent inode when rmdir done within that directory
[CIFS] Rename md5 functions to avoid collision with new rt modules
cifs: turn smb_send into a wrapper around smb_sendv
Commit e57db7b (SATA Sil: Blacklist system that spins off disks during ACPI power off)
breaks build like the following, in both cases when CONFIG_DMI set or not.
drivers/ata/sata_sil.c: In function 'sil_broken_system_poweroff':
drivers/ata/sata_sil.c:713: error: implicit declaration of function 'dmi_first_match'
drivers/ata/sata_sil.c:713: warning: initialization makes pointer from integer without a cast
sata_sil.c should include dmi.h
Signed-off-by: Alexander Beregalov <a.beregalov@gmail.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
btrfs requires version 0.18 of its tools, and squashfs requires 4.0.
ext3 should use and ext4 requires v1.41.4 of e2fsprogs.
Signed-off-by: Bill Nottingham <notting@redhat.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
cc: Ted Tso <tytso@mit.edu>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
I don't think emacs understands tilde expansion, so use
"expand-file-name" to do that.
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
With the previous Emacs tips example the kernel style was made available
for files in the kernel-tree only. This patch updates the tip to add a
separate cc-mode indent style ("linux-tabs-only"). This makes it easy to
switch between different indent styles and also makes the kernel style
easily available for any filetype mode (c++, awk, ...) that is managed
by the Emacs cc-mode.
Signed-off-by: Teemu Likonen <tlikonen@iki.fi>
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move DMA-mapping.txt to Documentation/PCI/.
DMA-mapping.txt was supposed to be moved from Documentation/ to
Documentation/PCI/. The 00-INDEX files in those two directories
were updated, along with a few other text files, but the file
itself somehow escaped being moved, so move it and update more
text files and source files with its new location.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Greg Kroah-Hartman <gregkh@suse.de>
cc: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core-2.6:
driver-core: fix kernel-doc parameter name
UIO: Add missing documentation of features added recently
Sync patch for jp_JP/stable_kernel_rules.txt
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ASoC: OMAP: Initialize XCCR and RCCR registers in McBSP DAI driver
ASoC: Fix null string usage with WM8753 DAIs
ALSA: hda - add another MacBook Pro 4, 1 subsystem ID
ALSA: hda - Fix compile warning with CONFIG_SND_JACK=n
ALSA: hda - Add quirk for HP DV6700 laptop
ALSA: hda - Fix PCM reference NID for STAC/IDT analog outputs
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: document difference between hid_blacklist and hid_ignore_list
HID: add antec-branded soundgraph imon devices to blacklist
HID: fix reversed logic in disconnect testing of hiddev
HID: adjust report descriptor fixup for MS 1028 receiver
* git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux-2.6-for-linus:
lguest: Fix a memory leak with the lg object during launcher close
lguest: disable the FORTIFY for lguest.
lguest: typos fix
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6:
ieee1394: sbp2: add workarounds for 2nd and 3rd generation iPods
firewire: sbp2: add workarounds for 2nd and 3rd generation iPods
firewire: sbp2: fix DMA mapping leak on the failure path
firewire: sbp2: define some magic numbers as macros
firewire: sbp2: fix payload limit at S1600 and S3200
ieee1394: sbp2: don't assume zero model_id or firmware_revision if there is none
ieee1394: sbp2: fix payload limit at S1600 and S3200
ieee1394: sbp2: update a help string
ieee1394: support for speeds greater than S800
firewire: core: optimize card shutdown
ieee1394: ohci1394: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others
firewire: ohci: increase AT req. retries, fix ack_busy_X from Panasonic camcorders and others
firewire: ohci: change "context_stop: still active" log message
firewire: keep highlevel drivers attached during brief connection loss
firewire: unnecessary BM delay after generation rollover
firewire: insist on successive self ID complete events
Linus suggested to put limits where the money is, and max_user_watches
already does that w/out the need of max_user_instances. That has the
advantage to mitigate the potential DoS while allowing pretty generous
default behavior.
Allowing top 4% of low memory (per user) to be allocated in epoll watches,
we have:
LOMEM MAX_WATCHES (per user)
512MB ~178000
1GB ~356000
2GB ~712000
A box with 512MB of lomem, will meet some challenge in hitting 180K
watches, socket buffers math teaches us. No more max_user_instances
limits then.
Signed-off-by: Davide Libenzi <davidel@xmailserver.org>
Cc: Willy Tarreau <w@1wt.eu>
Cc: Michael Kerrisk <mtk.manpages@googlemail.com>
Cc: Bron Gondwana <brong@fastmail.fm>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
If the initial state is not set when the input device is set up, the first
docking event after the module is loaded will be lost.
Signed-off-by: Frans Pop <elendil@planet.nl>
Acked-by: Matthew Garrett <mjg59@srcf.ucam.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
MacPro 3 have more temperature sensors than the previous MacPro's also the
sensor THTG has been removed. This patch add supports for the newer
temperature sensors in the MacPro3.
Signed-off-by: Bharath Ramesh <bramesh@vt.edu>
Signed-off-by: Henrik Rydberg <rydberg@euromail.se>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Bump hpilo module version to indicate that the open/close bug is fixed.
Signed-off-by: David Altobelli <david.altobelli@hp.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
