| Commit message (Collapse) | Author | Age |
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btrfs_start_delalloc_inodes will just walk the list of delalloc inodes and
start writing them out, but it doesn't splice the list or anything so as
long as somebody is doing work on the box you could end up in this section
_forever_. So just remove it, it's not needed anyway since sync will start
writeback on all inodes anyway, all we need to do is wait for ordered
extents and then we can commit the transaction. In my horrible torture test
sync goes from taking 4 minutes to about 1.5 minutes. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
Signed-off-by: Chris Mason <chris.mason@oracle.com>
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The bitfield member mount_opt was too small by one bit to hold the mount
option that enabled to include data extents in the integrity checker.
Since the same issue happened when the BTRFS_MOUNT_PANIC_ON_FATAL_ERROR
option was added (git rebase silently merges so that the increase of the
size of the bitfield member is lost), the bit limit was removed entirely.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
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Each CRC or header error was counted twice, this is now fixed.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
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When a filesystem is mounted with the degraded option, it is
possible that some of the devices are not there.
btrfs_ioctl_dev_info() crashs in this case because the device
name is a NULL pointer. This ioctl was only used for scrub.
Signed-off-by: Stefan Behrens <sbehrens@giantdisaster.de>
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It is basically a good thing if we are interruptible when waiting for
free space, but the generality in which it is implemented currently
leads to system calls being interruptible that are not documented this
way. For example git can't handle interrupted unlink(), leading to
corrupt repos under space pressure.
Instead we raise the bar to only be interruptible by SIGKILL.
Thanks to David Sterba for suggesting this.
Signed-off-by: Arne Jansen <sensille@gmx.net>
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The caller expects this function to return with the lock held and
releases it immediately on error.
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
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A user reported a panic where we were trying to fix a bad mirror but the
mirror number we were giving was 0, which is invalid. This is because we
don't do the transid verification until after the read, so as far as the
read code is concerned the read was a success. So instead store the mirror
we read from so that if there is some failure post read we know which mirror
to try next and which mirror needs to be fixed if we find a good copy of the
block. Thanks,
Signed-off-by: Josef Bacik <josef@redhat.com>
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Free fs_devices as done in the error-handling code just below.
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
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Cc: Jeff Mahoney <jeffm@suse.com>
Cc: Chris Mason <chris.mason@oracle.com>
Cc: Josef Bacik <josef@redhat.com>
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
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Fix a bug, where in case we need to adjust stripe_size so that the
length of the resulting chunk is less than or equal to max_chunk_size,
DUP chunks turn out to be only half as big as they could be.
Cc: Arne Jansen <sensille@gmx.net>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
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iref_to_path and iterate_irefs both increment the eb's refcount to use it
after releasing the path. Both depend on consistent data remaining in the
extent buffer and need a read lock to protect it.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
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Avoid calling free_extent_buffer more than once when the iterator function
returns non-zero. The only code that uses this is scrub repair for corrupted
nodatasum blocks.
Signed-off-by: Jan Schmidt <list.btrfs@jan-o-sch.net>
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Make free_ipath() behave like most other freeing functions in the
kernel and gracefully do nothing when passed a NULL pointer.
Besides this making the bahaviour consistent with functions such as
kfree(), vfree(), btrfs_free_path() etc etc, it also fixes a real NULL
deref issue in fs/btrfs/ioctl.c::btrfs_ioctl_ino_to_path(). In that
function we have this code:
...
ipath = init_ipath(size, root, path);
if (IS_ERR(ipath)) {
ret = PTR_ERR(ipath);
ipath = NULL;
goto out;
}
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out:
btrfs_free_path(path);
free_ipath(ipath);
...
If we ever take the true branch of that 'if' statement we'll end up
passing a NULL pointer to free_ipath() which will subsequently
dereference it and we'll go "Boom" :-(
This patch will avoid that.
Signed-off-by: Jesper Juhl <jj@chaosbits.net>
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clear_extent_bit()
{
next_node = rb_next(&state->rb_node);
...
clear_state_bit(state); <-- this may free next_node
if (next_node) {
state = rb_entry(next_node);
...
}
}
clear_state_bit() calls merge_state() which may free the next node
of the passing extent_state, so clear_extent_bit() may end up
referencing freed memory.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
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Currently it returns a set of bits that were cleared, but this return
value is not used at all.
Moreover it doesn't seem to be useful, because we may clear the bits
of a few extent_states, but only the cleared bits of last one is
returned.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
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Added in commit 49b25e0540904be0bf558b84475c69d72e4de66e
("btrfs: enhance transaction abort infrastructure")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: David Sterba <dsterba@suse.cz>
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Our code is not ready to cope with a sectorsize that's not equal to PAGE_SIZE.
It will lead to hanging-on while writing something.
Signed-off-by: Liu Bo <liubo2009@cn.fujitsu.com>
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Normally when there are 2 copies of a block, we add both to the
reada extent tree and prefetch only the one that is easier to reach.
This way we can better utilize multiple devices.
In case of DUP this makes no sense as both copies reside on the
same device.
Signed-off-by: Arne Jansen <sensille@gmx.net>
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When inserting into the radix tree returns EEXIST, get the existing
entry without giving up the spinlock in between.
There was a race for both the zones trees and the extent tree.
Signed-off-by: Arne Jansen <sensille@gmx.net>
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Follow those instructions, and you'll trigger a warning in the
beginning of d_set_d_op():
# mkfs.btrfs /dev/loop3
# mount /dev/loop3 /mnt
# btrfs sub create /mnt/sub
# btrfs sub snap /mnt /mnt/snap
# touch /mnt/snap/sub
touch: cannot touch `tmp': Permission denied
__d_alloc() set d_op to sb->s_d_op (btrfs_dentry_operations), and
then simple_lookup() reset it to simple_dentry_operations, which
triggered the warning.
Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Nothing controversial, just another batch of fixes:
- Samsung/exynos fixes for more merge window fallout: build errors
and warnings mostly, but also some clock/device setup issues on
exynos4/5
- PXA bug and warning fixes related to gpio and pinmux
- IRQ domain conversion bugfixes for U300 and MSM
- A regulator setup fix for U300"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: PXA2xx: MFP: fix potential direction bug
ARM: PXA2xx: MFP: fix bug with MFP_LPM_KEEP_OUTPUT
arm/sa1100: fix sa1100-rtc memory resource
ARM: pxa: fix gpio wakeup setting
ARM: SAMSUNG: add missing MMC_CAP2_BROKEN_VOLTAGE capability
ARM: EXYNOS: Fix compilation error when CONFIG_OF is not defined
ARM: EXYNOS: Fix resource on dev-dwmci.c
ARM: S3C24XX: Fix build warning for S3C2410_PM
ARM: mini2440_defconfig: Fix build error
ARM: msm: Fix gic irqdomain support
ARM: EXYNOS: Fix incorrect initialization of GIC
ARM: EXYNOS: use 'exynos4-sdhci' as device name for sdhci controllers
ARM: u300: bump all IRQ numbers by one
ARM: ux300: Fix unimplementable regulation constraints
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git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung into fixes
* 'v3.4-samsung-fixes-3' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: SAMSUNG: add missing MMC_CAP2_BROKEN_VOLTAGE capability
ARM: EXYNOS: Fix compilation error when CONFIG_OF is not defined
ARM: EXYNOS: Fix resource on dev-dwmci.c
ARM: S3C24XX: Fix build warning for S3C2410_PM
ARM: mini2440_defconfig: Fix build error
ARM: EXYNOS: Fix incorrect initialization of GIC
ARM: EXYNOS: use 'exynos4-sdhci' as device name for sdhci controllers
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Commit 6e8201f57c935 "mmc: core: add the capability for broken voltage"
introduced a new quirk to indicate that MMC core should ignore voltage
change errors reported by the regulators core. This is required to get
SDHCI working on UniversalC210, NURI and GONI boards again after commit
ceb6143b2df81c ("mmc: sdhci: fix vmmc handling").
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Fixed following compile time error.
arch/arm/mach-exynos/common.c: In function 'exynos5_init_irq':
arch/arm/mach-exynos/common.c:539:2: error: implicit declaration of function 'of_irq_init'
arch/arm/mach-exynos/common.c:539:14: error: 'exynos4_dt_irq_match' undeclared (first use in this function)
arch/arm/mach-exynos/common.c:539:14: note: each undeclared identifier is reported only once for each function it appears in
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Should be EXYNOS4_IRQ_DWMCI instead of IRQ_DWMCI,
and use DEFINE_RES_{MEM,IRQ}.
Reported-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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warning: (CPU_S3C2440 && CPU_S3C2442) selects S3C2410_PM which has unmet direct dependencies (ARCH_S3C24XX && CPU_S3C2410)
warning: (CPU_S3C2440 && CPU_S3C2442) selects S3C2410_PM which has unmet direct dependencies (ARCH_S3C24XX && CPU_S3C2410)
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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This is needed to fix mini2440_defconfig after the platform
files have been moved around.
arm-none-linux-gnueabi-ld: no machine record defined
arm-none-linux-gnueabi-ld: no machine record defined
arm-none-linux-gnueabi-ld: no machine record defined
make: *** [.tmp_vmlinux1] Error 1
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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Use the of_irq_init() call to setup the gic which also properly
registers the gic device node pointer with gic irq domain,
without which all interrupt specifier translations for gic fail.
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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With the addition of platform specific driver data in the sdhci driver
for EXYNOS4 and EXYNOS5, the device name of sdhci controllers on EXYNOS4
and EXYNOS5 are changed accordingly.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
[kgene.kim@samsung.com: re-worked on top of v3.4-rc2]
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
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* 'fixes' of git://github.com/hzhuang1/linux:
ARM: PXA2xx: MFP: fix potential direction bug
ARM: PXA2xx: MFP: fix bug with MFP_LPM_KEEP_OUTPUT
arm/sa1100: fix sa1100-rtc memory resource
ARM: pxa: fix gpio wakeup setting
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Pins configured as input and have MFP_LPM_DRIVE_* flag set, can have a
wrong output value for some period of time (spike) during the suspend
sequence.
This can happen because the direction of the pins (GPDR) is set by
software and the output level is set by hardware (PGSR) at a later
stage.
Fix the above potential bug by setting the output levels first.
Also save the actual levels of the pins before the suspend and restore
them after the resume, but before the direction settings take place, so
the same bug as described above will not happen in the resume sequence.
Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
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Pins that have MFP_LPM_KEEP_OUTPUT set and are configured for output
must retain the output state in low power mode.
Currently, the pin direction configuration is overrided with values
in gpdr_lpm[] array and do not obey the MFP_LPM_KEEP_OUTPUT setting.
Fix the above bug and add some documentation to clarify the
MFP_LPM_KEEP_OUTPUT setting purpose.
Reported-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
Tested-by: Paul Parsons <lost.distance@yahoo.com>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
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DEFINE_RES_MEM() takes the size of resource as a second argument,
not the end address. Passing end address leads to following error
in runtime during device registration:
sa1100-rtc: failed to claim resource 0
Fix it.
Signed-off-by: Dmitry Artamonow <mad_soft@inbox.ru>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
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In 3.3, gpio wakeup setting was broken. The call
enable_irq_wake() didn't set up the PXA gpio registers
(PWER, ...) anymore.
Fix it at least for pxa27x. The driver doesn't seem to be
used in pxa25x (weird ...), and the fix doesn't extend to
pxa3xx and pxa95x (which don't have a gpio_set_wake()
available).
Signed-off-by: Robert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson into fixes
* 'u300-fixes-for-arm-soc' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: u300: bump all IRQ numbers by one
ARM: ux300: Fix unimplementable regulation constraints
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Since the VIC was converted to use generic IRQ domains IRQ 0
is silently ignored. This IRQ is used on the U300 so we're
missing it now. Bump all IRQ numbers by one since they are
now decoupled from the hardware IRQ numbers.
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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It doesn't make sense to grant permission to change the status of a
regulator that is also set as always on and similarly it doesn't make
sense to allow a driver to change the voltage of a regulator which can
only be set to a single voltage.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm into fixes
* 'msm-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/davidb/linux-msm:
ARM: msm: Fix gic irqdomain support
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As of
commit 75294957be1dee7d22dd7d90bd31334ba410e836
Author: Grant Likely <grant.likely@secretlab.ca>
Date: Tue Feb 14 14:06:57 2012 -0700
irq_domain: Remove 'new' irq_domain in favour of the ppc one
the ARM gic controller uses proper irq domains. Fix the MSM gic
initialization and DT so that it works again.
Signed-off-by: David Brown <davidb@codeaurora.org>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
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Pull drm fixes from Dave Airlie:
"As soon as I sent the non-urgent stack, two important fixes come in:
- i915: fixes SNB GPU hangs in a number of 3D apps
- radeon: initial fix for VGA on LLano system, 3 or 4 of us have
spent time debugging this, and Jerome finally figured out the magic
bit the BIOS/fglrx set that we didn't. This at least should get
things working, there may be future reliability fixes."
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/i915: Set the Stencil Cache eviction policy to non-LRA mode.
drm/radeon/kms: need to set up ss on DP bridges as well
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Clearing bit 5 of CACHE_MODE_0 is necessary to prevent GPU hangs in
OpenGL programs such as Google MapsGL, Google Earth, and gzdoom when
using separate stencil buffers. Without it, the GPU tries to use the
LRA eviction policy, which isn't supported. This was supposed to be off
by default, but seems to be on for many machines.
This cannot be done in gen6_init_clock_gating with most of the other
workaround bits; the render ring needs to exist. Otherwise, the
register write gets dropped on the floor (one printk will show it
changed, but a second printk immediately following shows the value
reverts to the old one).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=47535
Cc: stable@vger.kernel.org
Cc: Rob Castle <futuredub@gmail.com>
Cc: Eric Appleman <erappleman@gmail.com>
Cc: aaron667@gmx.net
Cc: Keith Packard <keithp@keithp.com>
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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Makes Nutmeg DP to VGA bridges work for me.
Fixes:
https://bugs.freedesktop.org/show_bug.cgi?id=42490
Noticed by Jerome Glisse (after weeks of debugging).
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
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This reverts commit a32744d4abae24572eff7269bc17895c41bd0085.
While that commit was technically the right thing to do, and made the
x86-64 compat mode work identically to native 32-bit mode (and thus
fixing the problem with a 32-bit systemd install on a 64-bit kernel), it
turns out that the automount binaries had workarounds for this compat
problem.
Now, the workarounds are disgusting: doing an "uname()" to find out the
architecture of the kernel, and then comparing it for the 64-bit cases
and fixing up the size of the read() in automount for those. And they
were confused: it's not actually a generic 64-bit issue at all, it's
very much tied to just x86-64, which has different alignment for an
'u64' in 64-bit mode than in 32-bit mode.
But the end result is that fixing the compat layer actually breaks the
case of a 32-bit automount on a x86-64 kernel.
There are various approaches to fix this (including just doing a
"strcmp()" on current->comm and comparing it to "automount"), but I
think that I will do the one that teaches pipes about a special "packet
mode", which will allow user space to not have to care too deeply about
the padding at the end of the autofs packet.
That change will make the compat workaround unnecessary, so let's revert
it first, and get automount working again in compat mode. The
packetized pipes will then fix autofs for systemd.
Reported-and-requested-by: Michael Tokarev <mjt@tls.msk.ru>
Cc: Ian Kent <raven@themaw.net>
Cc: stable@kernel.org # for 3.3
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Pull CIFS fixes from Steve French.
* git://git.samba.org/sfrench/cifs-2.6:
Use correct conversion specifiers in cifs_show_options
CIFS: Show backupuid/gid in /proc/mounts
cifs: fix offset handling in cifs_iovec_write
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cifs_show_options uses the wrong conversion specifier for uid, gid,
rsize & wsize. Correct this to %u to match it to the variable type
'unsigned integer'.
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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Show backupuid/backupgid in /proc/mounts for cifs shares mounted with
the backupuid/backupgid feature.
Also consolidate the two separate checks for
pvolume_info->backupuid_specified into a single if condition in
cifs_setup_cifs_sb().
Signed-off-by: Sachin Prabhu <sprabhu@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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In the recent update of the cifs_iovec_write code to use async writes,
the handling of the file position was broken. That patch added a local
"offset" variable to handle the offset, and then only updated the
original "*poffset" before exiting.
Unfortunately, it copied off the original offset from the beginning,
instead of doing so after generic_write_checks had been called. Fix
this by moving the initialization of "offset" after that in the
function.
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
Pull Xen fixes from Konrad Rzeszutek Wilk:
"Some of these had been in existence since the 2.6.27 days, some since
3.0 - and some due to new features added in v3.4.
The one that is most interesting is David's one - in the low-level
assembler code we had be checking events needlessly. With his patch
now we do it when the appropriate flag is set - with the added benefit
that we can process events faster. Stefano's is fixing a mistake
where the Linux IRQ numbers were ACK-ed instead of the Xen IRQ,
resulting in missing interrupts. The other ones are bootup related
that can show up on various hardware."
- In the low-level assembler code we would jump to check events even if
none were present. This incorrect behavior had been there since
2.6.27 days!
- When using the fast-path for ACK-ing interrupts we were using the
Linux IRQ numbers instead of the Xen ones (and they can differ) and
missing interrupts in process.
- Fix bootup crashes when ACPI hotplug CPUs were present and they would
expand past the set number of CPUs we were allocated.
- Deal with broken BIOSes when uploading C-states to the hypervisor.
- Disable the cpuid check for MWAIT_LEAF if the ACPI PAD driver is
loaded. If the ACPI PAD driver is used it will crash, so lets not
export the functionality so the ACPI PAD driver won't load.
* tag 'stable/for-linus-3.4-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: correctly check for pending events when restoring irq flags
xen/acpi: Workaround broken BIOSes exporting non-existing C-states.
xen/smp: Fix crash when booting with ACPI hotplug CPUs.
xen: use the pirq number to check the pirq_eoi_map
xen/enlighten: Disable MWAIT_LEAF so that acpi-pad won't be loaded.
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In xen_restore_fl_direct(), xen_force_evtchn_callback() was being
called even if no events were pending. This resulted in (depending on
workload) about a 100 times as many xen_version hypercalls as
necessary.
Fix this by correcting the sense of the conditional jump.
This seems to give a significant performance benefit for some
workloads.
There is some subtle tricksy "..since the check here is trying to
check both pending and masked in a single cmpw, but I think this is
correct. It will call check_events now only when the combined
mask+pending word is 0x0001 (aka unmasked, pending)." (Ian)
CC: stable@kernel.org
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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We did a similar check for the P-states but did not do it for
the C-states. What we want to do is ignore cases where the DSDT
has definition for sixteen CPUs, but the machine only has eight
CPUs and we get:
xen-acpi-processor: (CX): Hypervisor error (-22) for ACPI CPU14
Reported-by: Tobias Geiger <tobias.geiger@vido.info>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
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