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Right now, depending on the first sector to which a process issues I/O,
the seek time may start out way out of whack. So make sure we start
with 0 sectors in seek, instead of the offset of the first request
issued.
Signed-off-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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There's nothing to do for those devices, since the timeout handling is
based on requests.
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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/proc/diskstats used to show stats for all disks whether they're
zero-sized or not and their non-zero partitions. Commit
074a7aca7afa6f230104e8e65eba3420263714a5 accidentally changed the
behavior such that it doesn't print out zero sized disks. This patch
implements DISK_PITER_INCL_EMPTY_PART0 flag to partition iterator and
uses it in diskstats_show() such that empty part0 is shown in
/proc/diskstats.
Reported and bisectd by Dianel Collins.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Daniel Collins <solemnwarning@solemnwarning.no-ip.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Impact: remove possible deadlock condition
There is no reason to use mempool backed allocation for map functions.
Also, because kern mapping is used inside LLDs (e.g. for EH), using
mempool backed allocation can lead to deadlock under extreme
conditions (mempool already consumed by the time a request reached EH
and requests are blocked on EH).
Switch copy/map functions to bio_kmalloc().
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Impact: fix bio_kmalloc() and its destruction path
bio_kmalloc() was broken in two ways.
* bvec_alloc_bs() first allocates bvec using kmalloc() and then
ignores it and allocates again like non-kmalloc bvecs.
* bio_kmalloc_destructor() didn't check for and free bio integrity
data.
This patch fixes the above problems. kmalloc patch is separated out
from bio_alloc_bioset() and allocates the requested number of bvecs as
inline bvecs.
* bio_alloc_bioset() no longer takes NULL @bs. None other than
bio_kmalloc() used it and outside users can't know how it was
allocated anyway.
* Define and use BIO_POOL_NONE so that pool index check in
bvec_free_bs() triggers if inline or kmalloc allocated bvec gets
there.
* Relocate destructors on top of each allocation function so that how
they're used is more clear.
Jens Axboe suggested allocating bvecs inline.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Impact: don't set GFP_DMA in q->bounce_gfp unnecessarily
All DMA address limits are expressed in terms of the last addressable
unit (byte or page) instead of one plus that. However, when
determining bounce_gfp for 64bit machines in blk_queue_bounce_limit(),
it compares the specified limit against 0x100000000UL to determine
whether it's below 4G ending up falsely setting GFP_DMA in
q->bounce_gfp.
As DMA zone is very small on x86_64, this makes larger SG_IO transfers
very eager to trigger OOM killer. Fix it. While at it, rename the
parameter to @dma_mask for clarity and convert comment to proper
winged style.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Impact: fix SG_IO behavior such that it matches the documentation
SG_IO howto says that if ->dxfer_len and sum of iovec disagress, the
shorter one wins. However, the current implementation returns -EINVAL
for such cases. Trim iovc if it's longer than ->dxfer_len.
This patch uses iov_*() helpers which take struct iovec * by casting
struct sg_iovec * to it. sg_iovec is always identical to iovec and
this will be further cleaned up with later patches.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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Impact: fix not-so-critical but annoying bug
sg_miter_next() returns 0 sized mapping if there is an zero sized sg
entry in the list or at the end of each iteration. As the users
always check the ->length field, this bug shouldn't be critical other
than causing unnecessary iteration.
Fix it.
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
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There is currently only one way for userspace to say "wait for my storage
device to get ready for the modules I just loaded": to load the
scsi_wait_scan module. Expectations of userspace are that once this
module is loaded, all the (storage) devices for which the drivers
were loaded before the module load are present.
Now, there are some issues with the implementation, and the async
stuff got caught in the middle of this: The existing code only
waits for the scsy async probing to finish, but it did not take
into account at all that probing might not have begun yet.
(Russell ran into this problem on his computer and the fix works for him)
This patch fixes this more thoroughly than the previous "fix", which
had some bad side effects (namely, for kernel code that wanted to wait for
the scsi scan it would also do an async sync, which would deadlock if you did
it from async context already.. there's a report about that on lkml):
The patch makes the module first wait for all device driver probes, and then it
will wait for the scsi parallel scan to finish.
Signed-off-by: Arjan van de Ven <arjan@linux.intel.com>
Tested-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fix a comment typo in slow-work.h
...a trivial mistake, but it will mess up kerneldoc if nothing else.
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Collect the DECLARE/DEFINE declarations together in linux/percpu-defs.h so
that they're in one place, and give them descriptive comments, particularly
the SHARED_ALIGNED variant.
It would be nice to collect these in linux/percpu.h, but that's not possible
without sorting out the severe #include recursion between the x86 arch headers
and the general headers (and possibly other arches too).
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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In non-SMP mode, the variable section attribute specified by DECLARE_PER_CPU()
does not agree with that specified by DEFINE_PER_CPU(). This means that
architectures that have a small data section references relative to a base
register may throw up linkage errors due to too great a displacement between
where the base register points and the per-CPU variable.
On FRV, the .h declaration says that the variable is in the .sdata section, but
the .c definition says it's actually in the .data section. The linker throws
up the following errors:
kernel/built-in.o: In function `release_task':
kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o
kernel/exit.c:78: relocation truncated to fit: R_FRV_GPREL12 against symbol `per_cpu__process_counts' defined in .data section in kernel/built-in.o
To fix this, DECLARE_PER_CPU() should simply apply the same section attribute
as does DEFINE_PER_CPU(). However, this is made slightly more complex by
virtue of the fact that there are several variants on DEFINE, so these need to
be matched by variants on DECLARE.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable:
Btrfs: fix btrfs fallocate oops and deadlock
Btrfs: use the right node in reada_for_balance
Btrfs: fix oops on page->mapping->host during writepage
Btrfs: add a priority queue to the async thread helpers
Btrfs: use WRITE_SYNC for synchronous writes
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* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
go7007: Convert to the new i2c device binding model
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`!' has a higher precedence than `&', parentheses are misplaced.
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Acked-by: Sonic Zhang <sonic.zhang@analog.com>
Cc: Bryan Wu <cooloney@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit a6dc60f8975ad96d162915e07703a4439c80dcf0 ("vmscan: rename
sc.may_swap to may_unmap") removed the may_swap flag, but memcg had used
it as a flag for "we need to use swap?", as the name indicate.
And in the current implementation, memcg cannot reclaim mapped file
caches when mem+swap hits the limit.
re-introduce may_swap flag and handle it at get_scan_ratio(). This
patch doesn't influence any scan_control users other than memcg.
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Daisuke Nishimura <nishimura@mxp.nes.nec.co.jp>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Cc: Balbir Singh <balbir@linux.vnet.ibm.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Error found by Jeff Haran.
The error detect register is 0s when no errors are detected. The check
code is incorrect, so reverse check sense.
Reported-by: Jeff Haran <jharan@Brocade.COM>
Signed-off-by: Dave Jiang <djiang@mvista.com>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Addresses http://bugzilla.kernel.org/show_bug.cgi?id=13133
ODEBUG: object is on stack, but not annotated
------------[ cut here ]------------
WARNING: at lib/debugobjects.c:253 __debug_object_init+0x1f3/0x276()
Hardware name: VMware Virtual Platform
Modules linked in: mptspi(+) mptscsih mptbase scsi_transport_spi ext3 jbd mbcache
Pid: 540, comm: insmod Not tainted 2.6.28-mm1 #2
Call Trace:
[<c042c51c>] warn_slowpath+0x74/0x8a
[<c0469600>] ? start_critical_timing+0x96/0xb7
[<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<c0446fad>] ? trace_hardirqs_off_caller+0x18/0xaf
[<c044704f>] ? trace_hardirqs_off+0xb/0xd
[<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<c042cb84>] ? release_console_sem+0x1a5/0x1ad
[<c05013e6>] __debug_object_init+0x1f3/0x276
[<c0501494>] debug_object_init+0x13/0x17
[<c0433c56>] init_timer+0x10/0x1a
[<e08e5b54>] mpt_config+0x1c1/0x2b7 [mptbase]
[<e08e3b82>] ? kmalloc+0x8/0xa [mptbase]
[<e08e3b82>] ? kmalloc+0x8/0xa [mptbase]
[<e08e6fa2>] mpt_do_ioc_recovery+0x950/0x1212 [mptbase]
[<c04496c2>] ? __lock_acquire+0xa69/0xacc
[<c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c
[<c060c3af>] ? _spin_unlock_irq+0x22/0x26
[<c04f2d8b>] ? string+0x2b/0x76
[<c04f310e>] ? vsnprintf+0x338/0x7b3
[<c04496c2>] ? __lock_acquire+0xa69/0xacc
[<c060c8ea>] ? _spin_unlock_irqrestore+0x2f/0x3c
[<c04496c2>] ? __lock_acquire+0xa69/0xacc
[<c044897d>] ? debug_check_no_locks_freed+0xeb/0x105
[<c060c8f1>] ? _spin_unlock_irqrestore+0x36/0x3c
[<c04488bc>] ? debug_check_no_locks_freed+0x2a/0x105
[<c0446b8c>] ? lock_release_holdtime+0x43/0x48
[<c043f742>] ? up_read+0x16/0x29
[<c05076f8>] ? pci_get_slot+0x66/0x72
[<e08e89ca>] mpt_attach+0x881/0x9b1 [mptbase]
[<e091c8e5>] mptspi_probe+0x11/0x354 [mptspi]
Noticing that every caller of mpt_config has its CONFIGPARMS struct
declared on the stack and thus the &pCfg->timer is always on the stack I
changed init_timer() to init_timer_on_stack() and it seems to have shut
up.....
Cc: "Moore, Eric Dean" <Eric.Moore@lsil.com>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Acked-by: "Desai, Kashyap" <Kashyap.Desai@lsi.com>
Cc: <stable@kernel.org> [2.6.29.x]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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For an upcoming distro release, we need to have the xp kernel module
loadable even when not on UV equipment. The xpc module will not load.
This will allow one set of modules dependent upon xp to work on either UV
or non-UV equipment.
Signed-off-by: Robin Holt <holt@sgi.com>
Signed-off-by: Jack Steiner <steiner@sgi.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Got this warning from Kconfig:
boolean symbol INPUT tested for 'm'? test forced to 'n'
because INPUT is tristate, not bool.
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Sam Ravnborg <sam@ravnborg.org>
Cc: Jeff Dike <jdike@addtoit.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Insert PCI root bus resources for the FRV-based MB93090 development kit
motherboard. This is required because the CPU's window onto the PCI bus
address space is considerably smaller than the CPU's full address space
and non-PCI devices lie outside of the PCI window that we might want to
access.
Without this patch, the PCI root bus uses the platform-level bus
resources, and these are then confined to the PCI window, thus making
platform_device_add() reject devices outside of this window.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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With no IRQ available/defined, RTC-CMOS driver prints something like:
rtc0: alarms up to one no, y3k, 114 bytes nvram
^^^^
I guess the following is a bit easier to understand:
rtc0: no alarms, y3k, 114 bytes nvram
Signed-off-by: Krzysztof Halasa <khc@pm.waw.pl>
Cc: David Brownell <david-b@pacbell.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This is a doc-only patch which I hope will reduce the number of
spi_master controller driver patches starting out with a common
implementation bug.
(As in: almost every spi_master driver I see starts out with its
version of this bug. Sigh.)
It just re-emphasizes that the setup() method may be called for one
device while a transfer is active on another ... which means that most
driver implementations shouldn't touch any registers.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add a parenthesized string of "H8300" for more convenient searchability
in the MAINTAINERS file.
Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Impact: make more work for myself
Signed-off-by: Matt Mackall <mpm@selenic.com>
Cc: David Woodhouse <dwmw2@infradead.org>
Acked-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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On line 944 the return value of flush() is considered as a boolean,
but limit reaches -1 upon timeout which evaluates to true.
On 540, 594, 720 the same occurs for wait_ssp_rx_stall()
On 536 the same occurs for wait_dma_channel_stop()
Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Acked-by: Eric Miao <eric.miao@marvell.com>
Cc: David Brownell <david-b@pacbell.net>
Cc: Russell King <rmk@arm.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Signed-off-by: Joe Perches <joe@perches.com>
Acked-by: Pekka Enberg <penberg@cs.helsinki.fi>
Acked-by: Eduard - Gabriel Munteanu <eduard.munteanu@linux360.ro>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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There are no more arches with suspend support using these directories.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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If DMA is enabled, any spi_sync call after suspend/resume would block
forever, because DRCMR is lost on suspend. This patch restores DRCMR to
the same values set by probe.
Signed-off-by: Daniel Ribeiro <drwyrm@gmail.com>
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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On parisc machines, which don't have HIL, removing the hp_sdc module
panics the kernel. Fix this by returning early in hp_sdc_exit() if no HP
SDC controller was found.
Add functionality to probe for the hp_sdc_mlc kernel module (which takes
care of the upper layer HIL functionality on parisc) after two seconds.
This is needed to get all the other HIL drivers (keyboard / mouse/ ..)
drivers automatically loaded by udev later as well.
Signed-off-by: Helge Deller <deller@gmx.de>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Frans Pop <elendil@planet.nl>
Cc: Kyle McMartin <kyle@mcmartin.ca>
Cc: Grant Grundler <grundler@parisc-linux.org>
Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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mm->owner should be accessed with rcu_dereference().
Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Acked-by: Balbir Singh <balbir@linux.vnet.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This fixes the following BUG:
# mount -o size=MM -t hugetlbfs none /huge
hugetlbfs: Bad value 'MM' for mount option 'size=MM'
------------[ cut here ]------------
kernel BUG at fs/super.c:996!
Due to
BUG_ON(!mnt->mnt_sb);
in vfs_kern_mount().
Also, remove unused #include <linux/quotaops.h>
Cc: William Irwin <wli@holomorphy.com>
Cc: <stable@kernel.org>
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Enable userspace to receive messages that a BMC transmits using an OEM
medium. This is used by the HP iLO2.
Based on code originally written by Patrick Schoeller.
Signed-off-by: dann frazier <dannf@hp.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Bela Lubkin noticed that the statistics for send IPMB and LAN commands
in the IPMI driver could be incremented even if an error occurred. Move
the increments to the proper place to avoid this.
Also add some statistics for retransmissions that failed, and some little
helper functions to neaten up the code a little.
Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Bela Lubkin <blubkin@vmware.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The IPMI driver would attempt to use the event buffer even if that
didn't exist on the BMC. This patch modified the IPMI driver to check
for the event buffer's existence before trying to use it.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The wrong return value is being tested when allocating a platform device
in the IPMI SI code. Check the right value.
Signed-off-by: Corey Minyard <minyard@acm.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add enable() and disable() callbacks for clocksources.
This allows us to put unused clocksources in power save mode. The
functions clocksource_enable() and clocksource_disable() wrap the
callbacks and are inserted in the timekeeping code to enable before use
and disable after switching to a new clocksource.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pass clocksource pointer to the read() callback for clocksources. This
allows us to share the callback between multiple instances.
[hugh@veritas.com: fix powerpc build of clocksource pass clocksource mods]
[akpm@linux-foundation.org: cleanup]
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Acked-by: John Stultz <johnstul@us.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Fixes the warning:
drivers/video/pxafb.c: In function 'pxafb_handle_irq':
drivers/video/pxafb.c:1442: warning: unused variable 'lcsr1'
[akpm@linux-foundation.org: save an ifdef]
Signed-off-by: Denis V. Lunev <den@openvz.org>
Cc: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit 032220ba (asiliantfb: fix cmap memory leaks) changed the function
init_asiliant from void to int, resulting in the following compile warning:
drivers/video/asiliantfb.c: In function `init_asiliant':
drivers/video/asiliantfb.c:536: warning: control reaches end of non-void function
Fix the warning by returning 0.
Signed-off-by: Vlada Peric <vlada.peric@gmail.com>
Cc: Andres Salomon <dilinger@debian.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Move the go7007 driver away from the legacy i2c binding model, which
is going away really soon now.
The I2C addresses of the audio and video chips in s2250-board didn't
look quite right, apparently they were left-aligned values when Linux
wants right-aligned values, so I fixed them too.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Greg Kroah-Hartman <gregkh@suse.de>
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Btrfs fallocate was incorrectly starting a transaction with a lock held
on the extent_io tree for the file, which could deadlock. Strictly
speaking it was using join_transaction which would be safe, but it is better
to move the transaction outside of the lock.
When preallocated extents are overwritten, btrfs_mark_buffer_dirty was
being called on an unlocked buffer. This was triggering an assertion and
oops because the lock is supposed to be held.
The bug was calling btrfs_mark_buffer_dirty on a leaf after btrfs_del_item had
been run. btrfs_del_item takes care of dirtying things, so the solution is a
to skip the btrfs_mark_buffer_dirty call in this case.
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
GFS2: Fix page_mkwrite() return code
GFS2: Clear dirty bit at end of inode glock sync
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.30' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Fix mmap2 for handling differing PAGE_SIZEs.
sh: sh7723: Don't default enable the RTC clock.
sh: sh7722: Don't default enable the RTC clock.
rtc: rtc-sh: clock framework support.
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git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
reiserfs: fix j_last_flush_trans_id type
fs: Mark get_filesystem_list() as __init function.
kill vfs_stat_fd / vfs_lstat_fd
Separate out common fstatat code into vfs_fstatat
ecryptfs: use memdup_user()
ncpfs: use memdup_user()
xfs: use memdup_user()
sysfs: use memdup_user()
btrfs: use memdup_user()
xattr: use memdup_user()
autofs4: use memchr() in invalid_string()
Documentation/filesystems: remove out of date reference to BKL being held
Fix i_mutex vs. readdir handling in nfsd
fs/compat_ioctl: fix build when !BLOCK
Fix autofs_expire()
No need for crossing to mountpoint in audit_tag_tree()
Safer nfsd_cross_mnt()
Touch all affected namespaces on propagation of mount
Fix AUTOFS_DEV_IOCTL_REQUESTER_CMD
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Older MIPS assembler don't support .set for defining aliases.
Using = works for old and new assembers.
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Commit ae46141ff08f1965b17c531b571953c39ce8b9e2 (NFSv3: Fix posix ACL code)
introduces a bug in the calculation of the XDR header iovec. In the case
where we are inlining the acls, we need to adjust the length of the iovec
req->rq_svec, in addition to adjusting the total buffer length.
Tested-by: Leonardo Chiquitto <leonardo.lists@gmail.com>
Tested-by: Suresh Jayaraman <sjayaraman@suse.de>
Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Conversion in commit 600ed41675d8c384519d8f0b3c76afed39ef2f4b had missed
that one, but converted format from %lu to %u. As the result,
/proc/..../journal got buggered on 64bit boxen.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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