If a delayed-allocation write happens before quota is enabled, the
kernel spits out a warning:
WARNING: at fs/quota/dquot.c:988 dquot_claim_space+0x77/0x112()
because the fact that user has some delayed allocation is not recorded
in quota structure.
Make dquot_initialize() update amount of reserved space for user if it sees
inode has some space reserved. Also make sure that reserved quota space does
not go negative and we warn about the filesystem bug just once.
Signed-off-by: Jan Kara <jack@suse.cz>
Since we implemented generic reserved space management interface,
then it is possible to account reserved space even when quota
is not active (similar to i_blocks/i_bytes).
Without this patch following testcase result in massive comlain from
WARN_ON in dquot_claim_space()
TEST_CASE:
mount /dev/sdb /mnt -oquota
dd if=/dev/zero of=/mnt/test bs=1M count=1
quotaon /mnt
# fs_reserved_spave == 1Mb
# quota_reserved_space == 0, because quota was disabled
dd if=/dev/zero of=/mnt/test seek=1 bs=1M count=1
# fs_reserved_spave == 2Mb
# quota_reserved_space == 1Mb
sync # ->dquot_claim_space() -> WARN_ON
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
CONFIG_BUFFER_DEBUG seems to have been removed from the documentation
somewhere around 2.4.15 and seemingly hasn't been available even
longer. It is, however, still referenced at one place from the jbd
code (one is a copy of the other header). Time to clean it up
Signed-off-by: Christoph Egger <siccegge@stud.informatik.uni-erlangen.de>
Signed-off-by: Jan Kara <jack@suse.cz>
The patch is aimed to reorganize and simplify quota code a bit.
Quota code is itself complex enouth, but we can make it more readable
in some places:
- Move quota option parsing to separate functions.
- Simplify old-quota and journaled-quota mix check.
Signed-off-by: Dmitry Monakhov <dmonakhov@openvz.org>
Signed-off-by: Jan Kara <jack@suse.cz>
At several places we modify EXT3_I(inode)->i_state without holding i_mutex
(ext3_release_file, ext3_bmap, ext3_journalled_writepage, ext3_do_update_inode,
...). These modifications are racy and we can lose updates to i_state. So
convert handling of i_state to use bitops which are atomic.
Signed-off-by: Jan Kara <jack@suse.cz>
Cleanup handling of S_NOQUOTA inode flag and document it a bit. The flag
does not have to be set under dqptr_sem. Only functions modifying inode's
dquot pointers have to check the flag under dqptr_sem before going forward
with the modification. This way we are sure that we cannot add new dquot
pointers to the inode which is just becoming a quota file.
The good thing about this cleanup is that there are no more places in quota
code which enforce i_mutex vs. dqptr_sem lock ordering (in particular that
dqptr_sem -> i_mutex of quota file). This should silence some (false) lockdep
warnings with ext4 + quota and generally make life of some filesystems easier.
Signed-off-by: Jan Kara <jack@suse.cz>
Erases for block devices were always just emulated by writing 0xff.
Some time back the write was removed and only the page cache was
changed to 0xff. Superficialy a good idea with two problems:
1. Touching the page cache isn't necessary either.
2. However, writing out 0xff _is_ necessary for the journal. As the
journal is scanned linearly, an old non-overwritten commit entry
can be used on next mount and cause havoc.
This should fix both aspects.
This patch converts the sh architecture to use the generic
read_persistent_clock and update_persistent_clock interfaces, reducing
the amount of arch specific code we have to maintain, and allowing for
further cleanups in the future.
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John Stultz <johnstul@us.ibm.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
The wireless core made a number of api changes that caused
the winbond driver to break. This patch fixes those errors by
making the needed changes to the driver.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
There were a number of patches that went into Linus's
tree already that conflicted with other changes in the
staging branch. This merge resolves those merge conflicts.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-linus' of git://git.open-osd.org/linux-open-osd:
exofs: groups support
exofs: Prepare for groups
exofs: Error recovery if object is missing from storage
exofs: convert io_state to use pages array instead of bio at input
exofs: RAID0 support
exofs: Define on-disk per-inode optional layout attribute
exofs: unindent exofs_sbi_read
exofs: Move layout related members to a layout structure
exofs: Recover in the case of read-passed-end-of-file
exofs: Micro-optimize exofs_i_info
exofs: debug print even less
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
sparc64: Make prom entry spinlock NMI safe.
sparc64: Kill off old sys_perfctr system call and state.
sparc: Update defconfigs.
sparc: Provide io{read,write}{16,32}be().
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6: (49 commits)
drivers/ide: Fix continuation line formats
ide: fixed section mismatch warning in cmd640.c
ide: ide_timing_compute() fixup
ide: make ide_get_best_pio_mode() static
via82cxxx: use ->pio_mode value to determine pair device speed
tx493xide: use ->pio_mode value to determine pair device speed
siimage: use ->pio_mode value to determine pair device speed
palm_bk3710: use ->pio_mode value to determine pair device speed
it821x: use ->pio_mode value to determine pair device speed
cs5536: use ->pio_mode value to determine pair device speed
cs5535: use ->pio_mode value to determine pair device speed
cmd64x: fix handling of address setup timings
amd74xx: use ->pio_mode value to determine pair device speed
alim15x3: fix handling of UDMA enable bit
alim15x3: fix handling of DMA timings
alim15x3: fix handling of command timings
alim15x3: fix handling of address setup timings
ide-timings: use ->pio_mode value to determine fastest PIO speed
ide: change ->set_dma_mode method parameters
ide: change ->set_pio_mode method parameters
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6: (52 commits)
init: Open /dev/console from rootfs
mqueue: fix typo "failues" -> "failures"
mqueue: only set error codes if they are really necessary
mqueue: simplify do_open() error handling
mqueue: apply mathematics distributivity on mq_bytes calculation
mqueue: remove unneeded info->messages initialization
mqueue: fix mq_open() file descriptor leak on user-space processes
fix race in d_splice_alias()
set S_DEAD on unlink() and non-directory rename() victims
vfs: add NOFOLLOW flag to umount(2)
get rid of ->mnt_parent in tomoyo/realpath
hppfs can use existing proc_mnt, no need for do_kern_mount() in there
Mirror MS_KERNMOUNT in ->mnt_flags
get rid of useless vfsmount_lock use in put_mnt_ns()
Take vfsmount_lock to fs/internal.h
get rid of insanity with namespace roots in tomoyo
take check for new events in namespace (guts of mounts_poll()) to namespace.c
Don't mess with generic_permission() under ->d_lock in hpfs
sanitize const/signedness for udf
nilfs: sanitize const/signedness in dealing with ->d_name.name
...
Fix up fairly trivial (famous last words...) conflicts in
drivers/infiniband/core/uverbs_main.c and security/tomoyo/realpath.c
Turns out that multiple people sent pretty much the same patch
for the same staging drivers. Commit these in two different
branches and merge them together to get a more complete coverage
of the cleanup and properly credit everyone for the work that they
did.
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
... so the "sh_debugfs_root" is already available. Previously it
wasn't and in result its path was "/sys/kernel/debug/pmb" instead of
"/sys/kernel/debug/sh/pmb".
Signed-off-by: Pawel Moll <pawel.moll@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* git://git.infradead.org/battery-2.6:
power_supply: bq27x00: fix voltage and current units
power_supply: bq27x00: add status and time properties
power_supply: bq27x00: add BQ27500 support
power_supply: bq27x00: fix temperature conversion
power_supply: bq27x00: remove unused struct fields
power_supply: bq27x00: remove double endian swap
da9030_battery: fix spelling in comment
wm97xx_battery: Clean up some warnings
This fixes some code style issues about assignments in if conditions.
Signed-off-by: Chihau Chau <chihau@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes some code style issues like to add one space after a while or
switch statement and before a open parenthesis '(', and to include KERN_
facility level in the printk() functions.
Signed-off-by: Chihau Chau <chihau@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
ERROR: do not initialise externals to 0 or NULL
+int comedi_num_legacy_minors = 0;
WARNING: braces {} are not necessary for single statement blocks
+ if (s->subdev_flags & SDF_CMD_READ) {
+ kill_fasync(&dev->async_queue, SIGIO, POLL_IN);
+ }
WARNING: braces {} are not necessary for single statement blocks
+ if (s->subdev_flags & SDF_CMD_WRITE) {
+ kill_fasync(&dev->async_queue, SIGIO, POLL_OUT);
+ }
Signed-off-by: Andrea Gelmini <andrea.gelmini@gelma.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the ni_labpc.c file that fixes suspect code indent for
conditional statements found by the checkpatch.pl tool
Signed-off-by: Stewart Robertson <stewart_r@aliencamel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the ni_labpc.c file that fixes up all the brace
warnings found by the checkpatch.pl tool
Signed-off-by: Maurice Dawson <mauricedawson2699@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the ni_labpc.c file that fixes up a brace warning
found by the checkpatch.pl tool
Signed-off-by: Maurice Dawson <mauricedawson2699@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the ni_labpc.c file that fixes up a brace warning
found by the checkpatch.pl tool.
Signed-off-by: Maurice Dawson <maurice2699@btinternet.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes some coding style issues like include KERN_ facility levels
in some printk() and one trailing whitespace error.
Signed-off-by: Chihau Chau <chihau@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes some code style issues like else staments after the close
braces '}' and to use __func__ instead of __FUNCTION__.
Signed-off-by: Chihau Chau <chihau@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This patch fixes all the errors and the majority of the warnings found with
checkpatch.pl script in hfa384x.h, following Gábor Stefanik hints
Signed-off-by: Alessandro Ghedini <al3xbio@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes some coding style issues like to use __func__ instead
__FUNCTION__, "foo *bar" instead "foo* bar" and a initial comment with
"/* */" instead "//"
Signed-off-by: Chihau Chau <chihau@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the ni_660x.c file that fixes up the brace and 80
character issues found by the checkpatch tool
Signed-off-by: Graham M Howe <gmhowe@btopenworld.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This is a patch to the ni_65xx.c file that fixes up a brace
warning found by the checkpatch.pl tool
Signed-off-by: Graham M Howe <gmhowe@btopenworld.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes all checkpatch issues in the pcmad comedi driver.
Signed-off-by: Benjamin Adolphi <b.adolphi@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This fixes a line over 80 characters and a brace warnings.
Signed-off-by: Chihau Chau <chihau@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6: (27 commits)
Regulators: wm8400 - cleanup platform driver data handling
Regulators: wm8994 - clean up driver data after removal
Regulators: wm831x-xxx - clean up driver data after removal
Regulators: pcap-regulator - clean up driver data after removal
Regulators: max8660 - annotate probe and remove methods
Regulators: max1586 - annotate probe and remove methods
Regulators: lp3971 - fail if platform data was not supplied
Regulators: tps6507x-regulator - mark probe method as __devinit
Regulators: tps65023-regulator - mark probe method as __devinit
Regulators: twl-regulator - mark probe function as __devinit
Regulators: fixed - annotate probe and remove methods
Regulators: ab3100 - fix probe and remove annotations
Regulators: virtual - use sysfs attribute groups
twl6030: regulator: Configure STATE register instead of REMAP
regulator: Provide optional dummy regulator for consumers
regulator: Assume regulators are enabled if they don't report anything
regulator: Convert fixed voltage regulator to use enable_time()
regulator: Add WM8994 regulator support
regulator: enable max8649 regulator driver
regulator: trivial: fix typos in user-visible Kconfig text
...
* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (151 commits)
vga_switcheroo: disable default y by new rules.
drm/nouveau: fix *staging* driver build with switcheroo off.
drm/radeon: fix typo in Makefile
vga_switcheroo: fix build on platforms with no ACPI
drm/radeon: Fix printf type warning in 64bit system.
drm/radeon/kms: bump the KMS version number for square tiling support.
vga_switcheroo: initial implementation (v15)
drm/radeon/kms: do not disable audio engine twice
Revert "drm/radeon/kms: disable HDMI audio for now on rv710/rv730"
drm/radeon/kms: do not preset audio stuff and start timer when not using audio
drm/radeon: r100/r200 ums: block ability for userspace app to trash 0 page and beyond
drm/ttm: fix function prototype to match implementation
drm/radeon: use ALIGN instead of open coding it
drm/radeon/kms: initialize set_surface_reg reg for rs600 asic
drm/i915: Use a dmi quirk to skip a broken SDVO TV output.
drm/i915: enable/disable LVDS port at DPMS time
drm/i915: check for multiple write domains in pin_and_relocate
drm/i915: clean-up i915_gem_flush_gpu_write_domain
drm/i915: reuse i915_gpu_idle helper
drm/i915: ensure lru ordering of fence_list
...
Fixed trivial conflicts in drivers/gpu/vga/Kconfig
The slab tree adds a percpu variable usage case (commit
9dfc6e68bf "SLUB: Use this_cpu operations in
slub"), but the percpu tree removes the prefixing of percpu variables (commit
dd17c8f729 "percpu: remove per_cpu__ prefix"),
thus causing the following compilation error:
CC mm/slub.o
mm/slub.c: In function ‘alloc_kmem_cache_cpus’:
mm/slub.c:2078: error: implicit declaration of function ‘per_cpu_var’
mm/slub.c:2078: warning: assignment makes pointer from integer without a cast
make[1]: *** [mm/slub.o] Error 1
Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
We want to keep track of the number of buffers added to a vq. Use
nr_added_bufs instead of 'ret'.
Also, the users of fill_queue() overloaded a local 'err' variable to
check the numbers of buffers allocated. Use nr_added_bufs instead of
err.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reported-by: Juan Quintela <quintela@redhat.com>
We declare 'len' as int type but it should be 'unsigned int', as
get_buf() wants it to be.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Reported-by: Juan Quintela <quintela@redhat.com>
flush_cache_all() uses broadcast IPIs, so we can't wrap in to that when
IRQs are disabled. The local cache flush manages to do what we need here
anyways, so just switch to that.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Presently we run in to issues with the MMU resetting the CPU when
variable sized mappings are employed. This takes a slightly more
aggressive approach to keeping the TLB and cache state sane before
establishing the mappings in order to cut down on races observed on
SMP configurations.
At the same time, we bump the VMA range up to the 0xb000...0xc000 range,
as there still seems to be some undocumented behaviour in setting up
variable mappings in the 0xa000...0xb000 range, resulting in reset by the
TLB.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
a) Fix sparse warning in ext4_ioctl()
b) Remove unneeded variable in mext_leaf_block()
c) Fix spelling typo in mext_check_arguments()
Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
