Linus Torvalds [Fri, 5 Mar 2010 19:46:31 +0000 (11:46 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
Switch !O_CREAT case to use of do_last()
Get rid of symlink body copying
Finish pulling of -ESTALE handling to upper level in do_filp_open()
Turn do_link spaghetty into a normal loop
Unify exits in O_CREAT handling
Kill is_link argument of do_last()
Pull handling of LAST_BIND into do_last(), clean up ok: part in do_filp_open()
Leave mangled flag only for setting nd.intent.open.flag
Get rid of passing mangled flag to do_last()
Don't pass mangled open_flag to finish_open()
pull more into do_last()
bail out with ELOOP earlier in do_link loop
pull the common predecessors into do_last()
postpone __putname() until after do_last()
unroll do_last: loop in do_filp_open()
Shift releasing nd->root from do_last() to its caller
gut do_filp_open() a bit more (do_last separation)
beginning to untangle do_filp_open()
Randy Dunlap [Fri, 5 Mar 2010 17:52:52 +0000 (09:52 -0800)]
x86: fix mtrr missing kernel-doc
Fix missing kernel-doc notation in mtrr/main.c:
Warning(arch/x86/kernel/cpu/mtrr/main.c:152): No description found for parameter 'info'
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Fri, 5 Mar 2010 18:50:22 +0000 (10:50 -0800)]
Merge branch 'perf-probes-for-linus-2' of git://git./linux/kernel/git/tip/linux-2.6-tip
* 'perf-probes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86: Issue at least one memory barrier in stop_machine_text_poke()
perf probe: Correct probe syntax on command line help
perf probe: Add lazy line matching support
perf probe: Show more lines after last line
perf probe: Check function address range strictly in line finder
perf probe: Use libdw callback routines
perf probe: Use elfutils-libdw for analyzing debuginfo
perf probe: Rename probe finder functions
perf probe: Fix bugs in line range finder
perf probe: Update perf probe document
perf probe: Do not show --line option without dwarf support
kprobes: Add documents of jump optimization
kprobes/x86: Support kprobes jump optimization on x86
x86: Add text_poke_smp for SMP cross modifying code
kprobes/x86: Cleanup save/restore registers
kprobes/x86: Boost probes when reentering
kprobes: Jump optimization sysctl interface
kprobes: Introduce kprobes jump optimization
kprobes: Introduce generic insn_slot framework
kprobes/x86: Cleanup RELATIVEJUMP_INSTRUCTION to RELATIVEJUMP_OPCODE
Linus Torvalds [Fri, 5 Mar 2010 18:47:57 +0000 (10:47 -0800)]
Merge git://git./linux/kernel/git/herbert/crypto-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
padata: Allocate the cpumask for the padata instance
crypto: authenc - Move saved IV in front of the ablkcipher request
crypto: hash - Fix handling of unaligned buffers
crypto: authenc - Use correct ahash complete functions
crypto: md5 - Set statesize
Linus Torvalds [Fri, 5 Mar 2010 18:47:00 +0000 (10:47 -0800)]
Merge branch 'for_linus' of git://git./linux/kernel/git/tytso/ext4
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (36 commits)
ext4: fix up rb_root initializations to use RB_ROOT
ext4: Code cleanup for EXT4_IOC_MOVE_EXT ioctl
ext4: Fix the NULL reference in double_down_write_data_sem()
ext4: Fix insertion point of extent in mext_insert_across_blocks()
ext4: consolidate in_range() definitions
ext4: cleanup to use ext4_grp_offs_to_block()
ext4: cleanup to use ext4_group_first_block_no()
ext4: Release page references acquired in ext4_da_block_invalidatepages
ext4: Fix ext4_quota_write cross block boundary behaviour
ext4: Convert BUG_ON checks to use ext4_error() instead
ext4: Use direct_IO_no_locking in ext4 dio read
ext4: use ext4_get_block_write in buffer write
ext4: mechanical rename some of the direct I/O get_block's identifiers
ext4: make "offset" consistent in ext4_check_dir_entry()
ext4: Handle non empty on-disk orphan link
ext4: explicitly remove inode from orphan list after failed direct io
ext4: fix error handling in migrate
ext4: deprecate obsoleted mount options
ext4: Fix fencepost error in chosing choosing group vs file preallocation.
jbd2: clean up an assertion in jbd2_journal_commit_transaction()
...
Linus Torvalds [Fri, 5 Mar 2010 18:46:04 +0000 (10:46 -0800)]
Merge git://git./linux/kernel/git/pkl/squashfs-linus
* git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus:
Squashfs: get rid of obsolete definition in header file
Squashfs: get rid of obsolete variable in struct squashfs_sb_info
Squashfs: add decompressor entries for lzma and lzo
Squashfs: add a decompressor framework
Squashfs: factor out remaining zlib dependencies into separate wrapper file
Squashfs: move zlib decompression wrapper code into a separate file
Phillip Lougher [Thu, 25 Feb 2010 01:31:13 +0000 (01:31 +0000)]
Squashfs: get rid of obsolete definition in header file
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Phillip Lougher [Thu, 25 Feb 2010 00:54:48 +0000 (00:54 +0000)]
Squashfs: get rid of obsolete variable in struct squashfs_sb_info
Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>
Al Viro [Sat, 26 Dec 2009 15:56:19 +0000 (10:56 -0500)]
Switch !O_CREAT case to use of do_last()
... and now we have all intents crap well localized
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 26 Dec 2009 13:37:05 +0000 (08:37 -0500)]
Get rid of symlink body copying
Now that nd->last stays around until ->put_link() is called, we can
just postpone that ->put_link() in do_filp_open() a bit and don't
bother with copying.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 26 Dec 2009 12:21:48 +0000 (07:21 -0500)]
Finish pulling of -ESTALE handling to upper level in do_filp_open()
Don't bother with path_walk() (and its retry loop); link_path_walk()
will do it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 26 Dec 2009 12:16:40 +0000 (07:16 -0500)]
Turn do_link spaghetty into a normal loop
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 26 Dec 2009 12:09:49 +0000 (07:09 -0500)]
Unify exits in O_CREAT handling
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 26 Dec 2009 12:04:50 +0000 (07:04 -0500)]
Kill is_link argument of do_last()
We set it to 1 iff we return NULL
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 26 Dec 2009 12:01:01 +0000 (07:01 -0500)]
Pull handling of LAST_BIND into do_last(), clean up ok: part in do_filp_open()
Note that in case of !O_CREAT we know that nd.root has already been given up
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 12:15:41 +0000 (07:15 -0500)]
Leave mangled flag only for setting nd.intent.open.flag
Nothing else uses it anymore
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 11:51:13 +0000 (06:51 -0500)]
Get rid of passing mangled flag to do_last()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 11:49:47 +0000 (06:49 -0500)]
Don't pass mangled open_flag to finish_open()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 08:39:50 +0000 (03:39 -0500)]
pull more into do_last()
Handling of LAST_DOT/LAST_ROOT/LAST_DOTDOT/terminating slash
can be pulled in as well
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 07:27:30 +0000 (02:27 -0500)]
bail out with ELOOP earlier in do_link loop
If we'd passed through 32 trailing symlinks already, there's
no sense following the 33rd - we'll bail out anyway. Better
bugger off earlier.
It *does* change behaviour, after a fashion - if the 33rd happens
to be a procfs-style symlink, original code *would* allow it.
This one will not. Cry me a river if that hurts you. Please, do.
And post a video of that, while you are at it.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 07:12:06 +0000 (02:12 -0500)]
pull the common predecessors into do_last()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 07:08:19 +0000 (02:08 -0500)]
postpone __putname() until after do_last()
Since do_last() doesn't mangle nd->last_name, we can safely postpone
__putname() done in handling of trailing symlinks until after the
call of do_last()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 07:05:43 +0000 (02:05 -0500)]
unroll do_last: loop in do_filp_open()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 07:02:38 +0000 (02:02 -0500)]
Shift releasing nd->root from do_last() to its caller
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 06:58:28 +0000 (01:58 -0500)]
gut do_filp_open() a bit more (do_last separation)
Brute-force separation of stuff reachable from do_last: with
the exception of do_link:; just take all that crap to a helper
function as-is and have it tell the caller if it has to go
to do_link.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 06:26:48 +0000 (01:26 -0500)]
beginning to untangle do_filp_open()
That's going to be a long and painful series. The first step:
take the stuff reachable from 'ok' label in do_filp_open() into
a new helper (finish_open()).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Venkatesh Pallipadi [Fri, 5 Mar 2010 03:25:21 +0000 (22:25 -0500)]
ext4: fix up rb_root initializations to use RB_ROOT
ext4 uses rb_node = NULL; to zero rb_root at few places. Using
RB_ROOT as the initializer is more portable in case the underlying
implementation of rbtrees changes in the future.
Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Eric Paris <eparis@redhat.com>
Linus Torvalds [Thu, 4 Mar 2010 16:26:08 +0000 (08:26 -0800)]
Merge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
* '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
Linus Torvalds [Thu, 4 Mar 2010 16:24:47 +0000 (08:24 -0800)]
Merge git://git./linux/kernel/git/davem/sparc-2.6
* 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().
Linus Torvalds [Thu, 4 Mar 2010 16:24:06 +0000 (08:24 -0800)]
Merge git://git./linux/kernel/git/davem/ide-next-2.6
* 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
...
Linus Torvalds [Thu, 4 Mar 2010 16:20:14 +0000 (08:20 -0800)]
Merge branch 'next' of git://git./linux/kernel/git/djbw/async_tx
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx: (28 commits)
ioat: cleanup ->timer_fn() and ->cleanup_fn() prototypes
ioat3: interrupt coalescing
ioat: close potential BUG_ON race in the descriptor cleanup path
ioat2: kill pending flag
ioat3: use ioat2_quiesce()
ioat3: cleanup, don't enable DCA completion writes
DMAENGINE: COH 901 318 lli sg offset fix
DMAENGINE: COH 901 318 configure channel direction
DMAENGINE: COH 901 318 remove irq counting
DMAENGINE: COH 901 318 descriptor pool refactoring
DMAENGINE: COH 901 318 cleanups
dma: Add MPC512x DMA driver
Debugging options for the DMA engine subsystem
iop-adma: redundant/wrong tests in iop_*_count()?
dmatest: fix handling of an even number of xor_sources
dmatest: correct raid6 PQ test
fsldma: Fix cookie issues
fsldma: Fix cookie issues
dma: cases IPU_PIX_FMT_BGRA32, BGR32 and ABGR32 are the same in ipu_ch_param_set_size()
dma: make Open Firmware device id constant
...
Linus Torvalds [Thu, 4 Mar 2010 16:15:33 +0000 (08:15 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs-2.6
* '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
Linus Torvalds [Thu, 4 Mar 2010 16:04:22 +0000 (08:04 -0800)]
Merge git://git.infradead.org/battery-2.6
* 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
Linus Torvalds [Thu, 4 Mar 2010 15:52:06 +0000 (07:52 -0800)]
Merge branch 'for-linus' of git://git./linux/kernel/git/lrg/voltage-2.6
* '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
...
Linus Torvalds [Thu, 4 Mar 2010 15:51:36 +0000 (07:51 -0800)]
Merge git://git./linux/kernel/git/brodo/pcmcia-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6:
pcmcia: disable pcmcia ioctl for !ARM, prepare for removal
pcmcia: CodingStyle fixes
pcmcia: alchemy: fixup wrong comments
pcmcia: remove irq_list parameter from pd6729
yenta_socket: ENE CB712 CardBus bridge needs special treatment with Echo Audio Indigo soundcards
Linus Torvalds [Thu, 4 Mar 2010 15:49:37 +0000 (07:49 -0800)]
Merge branch 'drm-linus' of git://git./linux/kernel/git/airlied/drm-2.6
* '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
Masami Hiramatsu [Thu, 4 Mar 2010 03:38:50 +0000 (22:38 -0500)]
x86: Issue at least one memory barrier in stop_machine_text_poke()
Fix stop_machine_text_poke() to issue smp_mb() before exiting
waiting loop, and use cpu_relax() for waiting.
Changes in v2:
- Don't use ACCESS_ONCE().
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Acked-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Jason Baron <jbaron@redhat.com>
LKML-Reference: <
20100304033850.3819.74590.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Masami Hiramatsu [Thu, 4 Mar 2010 03:38:43 +0000 (22:38 -0500)]
perf probe: Correct probe syntax on command line help
Move @SRC right after FUNC in syntax according to syntax change
on command line help.
Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com>
Cc: systemtap <systemtap@sources.redhat.com>
Cc: DLE <dle-develop@lists.sourceforge.net>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: K.Prasad <prasad@linux.vnet.ibm.com>
LKML-Reference: <
20100304033843.3819.10087.stgit@localhost6.localdomain6>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Akira Fujita [Thu, 4 Mar 2010 05:39:24 +0000 (00:39 -0500)]
ext4: Code cleanup for EXT4_IOC_MOVE_EXT ioctl
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>
Akira Fujita [Thu, 4 Mar 2010 05:34:58 +0000 (00:34 -0500)]
ext4: Fix the NULL reference in double_down_write_data_sem()
If EXT4_IOC_MOVE_EXT ioctl is called with NULL donor_fd, fget() in
ext4_ioctl() gets inappropriate file structure for donor; so we need
to do this check earlier, before calling double_down_write_data_sem().
Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Akira Fujita [Thu, 4 Mar 2010 05:31:06 +0000 (00:31 -0500)]
ext4: Fix insertion point of extent in mext_insert_across_blocks()
If the leaf node has 2 extent space or fewer and EXT4_IOC_MOVE_EXT
ioctl is called with the file offset where after the 2nd extent
covers, mext_insert_across_blocks() always tries to insert extent into
the first extent. As a result, the file gets corrupted because of
wrong extent order. The patch fixes this problem.
Signed-off-by: Akira Fujita <a-fujita@rs.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Steffen Klassert [Thu, 4 Mar 2010 05:30:22 +0000 (13:30 +0800)]
padata: Allocate the cpumask for the padata instance
The cpumask of the padata instance was used without allocated.
This caused boot crashes if CONFIG_CPUMASK_OFFSTACK is enabled.
This patch fixes this by doing proper allocation for this cpumask.
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Akinobu Mita [Thu, 4 Mar 2010 04:55:01 +0000 (23:55 -0500)]
ext4: consolidate in_range() definitions
There are duplicate macro definitions of in_range() in mballoc.h and
balloc.c. This consolidates these two definitions into ext4.h, and
changes extents.c to use in_range() as well.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger@sun.com>
Akinobu Mita [Thu, 4 Mar 2010 04:53:25 +0000 (23:53 -0500)]
ext4: cleanup to use ext4_grp_offs_to_block()
More cleanup to convert open-coded calculations of the first block
number of a free extent to use ext4_grp_offs_to_block() instead.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger@sun.com>
Akinobu Mita [Thu, 4 Mar 2010 04:53:39 +0000 (23:53 -0500)]
ext4: cleanup to use ext4_group_first_block_no()
This is a cleanup and simplification patch which takes some open-coded
calculations to calculate the first block number of a group and
converts them to use the (already defined) ext4_group_first_block_no()
function.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: Andreas Dilger <adilger@sun.com>
Dan Williams [Thu, 4 Mar 2010 04:22:21 +0000 (21:22 -0700)]
Merge branch 'coh' into dmaengine
Dan Williams [Thu, 4 Mar 2010 04:21:13 +0000 (21:21 -0700)]
ioat: cleanup ->timer_fn() and ->cleanup_fn() prototypes
If the calling convention of ->timer_fn() and ->cleanup_fn() are unified
across hardware versions we can drop parameters to ioat_init_channel() and
unify ioat_is_dma_complete() implementations.
Both ->timer_fn() and ->cleanup_fn() are modified to expect a struct
dma_chan pointer.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Williams [Thu, 4 Mar 2010 04:21:13 +0000 (21:21 -0700)]
ioat3: interrupt coalescing
The hardware automatically disables further interrupts after each event
until rearmed. This allows a delay to be injected between the occurence
of the interrupt and the running of the cleanup routine. The delay is
scaled by the descriptor backlog and then written to the INTRDELAY
register which specifies the number of microseconds to hold off
interrupt delivery after an interrupt event occurs. According to
powertop this reduces the interrupt rate from ~5000 intr/s to ~150
intr/s per without affecting throughput (simple dd to a raid6 array).
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Williams [Thu, 4 Mar 2010 04:21:10 +0000 (21:21 -0700)]
ioat: close potential BUG_ON race in the descriptor cleanup path
Since ioat_cleanup_preamble() and the update of the last completed
descriptor are not synchronized there is a chance that two cleanup threads
can see descriptors to clean. If the first cleans up all pending
descriptors then the second will trigger the BUG_ON.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Linus Torvalds [Tue, 2 Mar 2010 16:36:46 +0000 (08:36 -0800)]
Prioritize synchronous signals over 'normal' signals
This makes sure that we pick the synchronous signals caused by a
processor fault over any pending regular asynchronous signals sent to
use by [t]kill().
This is not strictly required semantics, but it makes it _much_ easier
for programs like Wine that expect to find the fault information in the
signal stack.
Without this, if a non-synchronous signal gets picked first, the delayed
asynchronous signal will have its signal context pointing to the new
signal invocation, rather than the instruction that caused the SIGSEGV
or SIGBUS in the first place.
This is not all that pretty, and we're discussing making the synchronous
signals more explicit rather than have these kinds of implicit
preferences of SIGSEGV and friends. See for example
http://bugzilla.kernel.org/show_bug.cgi?id=15395
for some of the discussion. But in the meantime this is a simple and
fairly straightforward work-around, and the whole
if (x & Y)
x &= Y;
thing can be compiled into (and gcc does do it) just three instructions:
movq %rdx, %rax
andl $Y, %eax
cmovne %rax, %rdx
so it is at least a simple solution to a subtle issue.
Reported-and-tested-by: Pavel Vilim <wylda@volny.cz>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Al Viro [Wed, 3 Mar 2010 22:12:40 +0000 (17:12 -0500)]
Merge branch 'for-fsnotify' into for-linus
Jan Kara [Wed, 3 Mar 2010 21:19:32 +0000 (16:19 -0500)]
ext4: Release page references acquired in ext4_da_block_invalidatepages
We forget to release page references we acquire in
ext4_da_block_invalidatepages. Luckily, this function gets called only if we
are not able to allocate blocks for delay-allocated data so that function
should better never be called.
Also cleanup handling of index variable.
Reported-by: Wu Fengguang <fengguang.wu@intel.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Eric W. Biederman [Wed, 3 Mar 2010 07:53:19 +0000 (23:53 -0800)]
init: Open /dev/console from rootfs
To avoid potential problems with an empty /dev open /dev/console
from rootfs instead of waiting to mount our root filesystem and
mounting it there. This effectively guarantees that there will
be a device node, and it won't be on a filesystem that we will
ever unmount, so there are no issues with leaving /dev/console
open and pinning the filesystem.
This is actually more effective than automatically mounting
devtmpfs on /dev because it removes removes the occasionally
problematic assumption that /dev/console exists from the boot
code.
With this patch I was able to throw busybox on my /boot partition
(which has no /dev directory) and boot into userspace without
problems.
The only possible negative consequence I can think of is that
someone out there deliberately used did not use a character device
that is major 5 minor 2 for /dev/console. Does anyone know of a
situation in which that could make sense?
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
André Goddard Rosa [Tue, 23 Feb 2010 07:04:27 +0000 (04:04 -0300)]
mqueue: fix typo "failues" -> "failures"
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
André Goddard Rosa [Tue, 23 Feb 2010 07:04:26 +0000 (04:04 -0300)]
mqueue: only set error codes if they are really necessary
... postponing assignments until they're needed. Doesn't change code size.
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
André Goddard Rosa [Tue, 23 Feb 2010 07:04:25 +0000 (04:04 -0300)]
mqueue: simplify do_open() error handling
It reduces code size:
text data bss dec hex filename
9925 72 16 10013 271d ipc/mqueue-BEFORE.o
9885 72 16 9973 26f5 ipc/mqueue-AFTER.o
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
André Goddard Rosa [Tue, 23 Feb 2010 07:04:24 +0000 (04:04 -0300)]
mqueue: apply mathematics distributivity on mq_bytes calculation
Code size reduction:
text data bss dec hex filename
9941 72 16 10029 272d ipc/mqueue-BEFORE.o
9925 72 16 10013 271d ipc/mqueue-AFTER.o
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
André Goddard Rosa [Tue, 23 Feb 2010 07:04:23 +0000 (04:04 -0300)]
mqueue: remove unneeded info->messages initialization
... and abort earlier if we couldn't allocate the message pointers array,
avoiding the u->mq_bytes accounting logic.
It reduces code size:
text data bss dec hex filename
9949 72 16 10037 2735 ipc/mqueue-BEFORE.o
9941 72 16 10029 272d ipc/mqueue-AFTER.o
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
André Goddard Rosa [Tue, 23 Feb 2010 07:04:28 +0000 (04:04 -0300)]
mqueue: fix mq_open() file descriptor leak on user-space processes
We leak fd on lookup_one_len() failure
Signed-off-by: André Goddard Rosa <andre.goddard@gmail.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Wed, 3 Mar 2010 19:13:08 +0000 (14:13 -0500)]
fix race in d_splice_alias()
rehashing the negative placeholder opens a race with d_lookup();
we unhash it almost immediately (by d_move()), but the race
window is there. Since d_move() doesn't rely on target being
hashed, we don't need that d_rehash() at all.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Wed, 3 Mar 2010 19:12:08 +0000 (14:12 -0500)]
set S_DEAD on unlink() and non-directory rename() victims
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Miklos Szeredi [Wed, 10 Feb 2010 11:15:53 +0000 (12:15 +0100)]
vfs: add NOFOLLOW flag to umount(2)
Add a new UMOUNT_NOFOLLOW flag to umount(2). This is needed to prevent
symlink attacks in unprivileged unmounts (fuse, samba, ncpfs).
Additionally, return -EINVAL if an unknown flag is used (and specify
an explicitly unused flag: UMOUNT_UNUSED). This makes it possible for
the caller to determine if a flag is supported or not.
CC: Eugene Teo <eugene@redhat.com>
CC: Michael Kerrisk <mtk.manpages@gmail.com>
Signed-off-by: Miklos Szeredi <mszeredi@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 5 Feb 2010 14:37:21 +0000 (09:37 -0500)]
get rid of ->mnt_parent in tomoyo/realpath
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 5 Feb 2010 14:34:36 +0000 (09:34 -0500)]
hppfs can use existing proc_mnt, no need for do_kern_mount() in there
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 5 Feb 2010 14:30:46 +0000 (09:30 -0500)]
Mirror MS_KERNMOUNT in ->mnt_flags
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 5 Feb 2010 07:21:06 +0000 (02:21 -0500)]
get rid of useless vfsmount_lock use in put_mnt_ns()
It hadn't been needed since we'd sanitized the logics in
mark_mounts_for_expiry() (which, in turn, used to be a
rudiment of bad old times when namespace_sem was per-ns).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 5 Feb 2010 07:01:14 +0000 (02:01 -0500)]
Take vfsmount_lock to fs/internal.h
no more users left outside of fs/*.c (and very few outside of
fs/namespace.c, actually)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 5 Feb 2010 06:41:33 +0000 (01:41 -0500)]
get rid of insanity with namespace roots in tomoyo
passing *any* namespace root to __d_path() as root is equivalent
to just passing it {NULL, NULL}; no need to bother with finding
the root of our namespace in there.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Fri, 5 Feb 2010 05:40:25 +0000 (00:40 -0500)]
take check for new events in namespace (guts of mounts_poll()) to namespace.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 1 Feb 2010 16:05:16 +0000 (11:05 -0500)]
Don't mess with generic_permission() under ->d_lock in hpfs
Just use dentry_unhash() there
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 1 Feb 2010 02:28:48 +0000 (21:28 -0500)]
sanitize const/signedness for udf
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 1 Feb 2010 02:03:58 +0000 (21:03 -0500)]
nilfs: sanitize const/signedness in dealing with ->d_name.name
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 1 Feb 2010 02:02:09 +0000 (21:02 -0500)]
nilfs really shouldn't slap struct dentry on stack...
... especially when it only needs (and initializes) .d_name of it
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 1 Feb 2010 01:49:54 +0000 (20:49 -0500)]
sanitize const/signedness of ufs a bit
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 31 Jan 2010 22:09:29 +0000 (17:09 -0500)]
sanitize signedness/const for pointers to char in hpfs a bit
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 31 Jan 2010 03:51:25 +0000 (22:51 -0500)]
new helper: iterate_mounts()
apply function to vfsmounts in set returned by collect_mounts(),
stop if it returns non-zero.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 30 Jan 2010 21:11:21 +0000 (16:11 -0500)]
fix NFS4 handling of mountpoint stat
RFC says we need to follow the chain of mounts if there's more
than one stacked on that point.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 30 Jan 2010 20:47:29 +0000 (15:47 -0500)]
Clean follow_dotdot() up a bit
No need to open-code follow_up() in it and locking can be lighter.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 30 Jan 2010 20:27:27 +0000 (15:27 -0500)]
fix mnt_mountpoint abuse in smack
(mnt,mnt_mountpoint) pair is conceptually wrong; if you want
to use it for generating pathname and for nothing else *and*
if you know that vfsmount tree is unchanging, you can get
away with that, but the right solution for that is (mnt,mnt_root).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 30 Jan 2010 18:51:04 +0000 (13:51 -0500)]
a couple of mntget+dget -> path_get in nfs4proc
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 30 Jan 2010 18:44:07 +0000 (13:44 -0500)]
Switch alloc_nfs_open_context() to struct path
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 30 Jan 2010 18:16:21 +0000 (13:16 -0500)]
New helper: path_is_under(path1, path2)
Analog of is_subdir for vfsmount,dentry pairs, moved from audit_tree.c
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Valerie Aurora [Tue, 26 Jan 2010 19:20:47 +0000 (14:20 -0500)]
VFS: Clean up shared mount flag propagation
The handling of mount flags in set_mnt_shared() got a little tangled
up during previous cleanups, with the following problems:
* MNT_PNODE_MASK is defined as a literal constant when it should be a
bitwise xor of other MNT_* flags
* set_mnt_shared() clears and then sets MNT_SHARED (part of MNT_PNODE_MASK)
* MNT_PNODE_MASK could use a comment in mount.h
* MNT_PNODE_MASK is a terrible name, change to MNT_SHARED_MASK
This patch fixes these problems.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Christoph Hellwig [Tue, 26 Jan 2010 16:27:20 +0000 (17:27 +0100)]
kill unused invalidate_inode_pages helper
No one is calling this anymore as everyone has switched to
invalidate_mapping_pages long time ago. Also update a few
references to it in comments. nfs has two more, but I can't
easily figure what they are actually referring to, so I left
them as-is.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Richard Kennedy [Tue, 26 Jan 2010 14:12:43 +0000 (14:12 +0000)]
fs: re-order super_block to remove 16 bytes of padding on 64bit builds
re-order structure super_block to remove 16 bytes of alignment padding
on 64bit builds.
This shrinks the size of super_block from 712 to 696 bytes so requiring
one fewer 64 byte cache lines.
Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
-----
patch against 2.6.33-rc5
compiled & tested on x86_64 AMDX2 desktop machine.
I've been running with this patch applied for several weeks with no
problems.
regards
Richard
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 25 Jan 2010 23:36:07 +0000 (18:36 -0500)]
Simplify failure exits in s390/hypfs fill_super()
->kill_sb() will be called after any failure exit, so no need
to duplicate what it can do.
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 25 Jan 2010 23:30:38 +0000 (18:30 -0500)]
Don't bother with d_genocide in rpc_pipe
kill_litter_super() from ->kill_sb() will take care of the junk
Al Viro [Sun, 24 Jan 2010 05:28:52 +0000 (00:28 -0500)]
Use kill_litter_super() in autofs4 ->kill_sb()
... and get rid of open-coding its guts (i.e. RIP autofs4_force_release())
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 24 Jan 2010 01:10:29 +0000 (20:10 -0500)]
Get rid of mnt_mountpoint abuses in ext4
path to mnt/mnt->mnt_root is no worse than that to
mnt->mnt_parent/mnt->mnt_mountpoint *and* needs no
pinning the sucker down (mnt is not going away and
mnt->mnt_root won't change)
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sun, 24 Jan 2010 01:08:53 +0000 (20:08 -0500)]
Sanitize autofs_dev_ioctl_ismountpoint()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Mon, 18 Jan 2010 06:38:00 +0000 (01:38 -0500)]
switch infiniband uverbs to anon_inodes
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Dan Williams [Wed, 3 Mar 2010 18:47:43 +0000 (11:47 -0700)]
ioat2: kill pending flag
The pending == 2 case no longer exists in the driver so, we can use
ioat2_ring_pending() outside the lock to determine if there might be any
descriptors in the ring that the hardware has not seen.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Williams [Wed, 3 Mar 2010 18:47:42 +0000 (11:47 -0700)]
ioat3: use ioat2_quiesce()
Replace open coded ioat2_quiesce() call in ioat3_restart_channel
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Dan Williams [Wed, 3 Mar 2010 18:47:42 +0000 (11:47 -0700)]
ioat3: cleanup, don't enable DCA completion writes
We already disallow raid operations while DCA is globally enabled, so
having it locally enabled is a nop and confusing when reading the code.
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Al Viro [Sat, 16 Jan 2010 19:10:21 +0000 (14:10 -0500)]
add several pieces to shared subtree documentation
* document locking
* add the missing part of data structure invariants (relationship
between mnt_share and mnt_slave lists in case of a peer group
among slaves).
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Sat, 16 Jan 2010 18:28:47 +0000 (13:28 -0500)]
Kill CL_PROPAGATION, sanitize fs/pnode.c:get_source()
First of all, get_source() never results in CL_PROPAGATION
alone. We either get CL_MAKE_SHARED (for the continuation
of peer group) or CL_SLAVE (slave that is not shared) or both
(beginning of peer group among slaves). Massage the code to
make that explicit, kill CL_PROPAGATION test in clone_mnt()
(nothing sets CL_MAKE_SHARED without CL_PROPAGATION and in
clone_mnt() we are checking CL_PROPAGATION after we'd found
that there's no CL_SLAVE, so the check for CL_MAKE_SHARED
would do just as well).
Fix comments, while we are at it...
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 14 Jan 2010 05:59:16 +0000 (00:59 -0500)]
Switch gfs2 to nd_set_link()
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 24 Dec 2009 11:47:55 +0000 (06:47 -0500)]
Switch may_open() and break_lease() to passing O_...
... instead of mixing FMODE_ and O_
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Nick Piggin [Tue, 22 Dec 2009 00:28:53 +0000 (16:28 -0800)]
fs: improve remount,ro vs buffercache coherency
Invalidate sb->s_bdev on remount,ro.
Fixes a problem reported by Jorge Boncompte who is seeing corruption
trying to snapshot a minix filesystem image. Some filesystems modify
their metadata via a path other than the bdev buffer cache (eg. they may
use a private linear mapping for their metadata, or implement directories
in pagecache, etc). Also, file data modifications usually go to the bdev
via their own mappings.
These updates are not coherent with buffercache IO (eg. via /dev/bdev)
and never have been. However there could be a reasonable expectation that
after a mount -oremount,ro operation then the buffercache should
subsequently be coherent with previous filesystem modifications.
So invalidate the bdev mappings on a remount,ro operation to provide a
coherency point.
The problem was exposed when we switched the old rd to brd because old rd
didn't really function like a normal block device and updates to rd via
mappings other than the buffercache would still end up going into its
buffercache. But the same problem has always affected other "normal"
block devices, including loop.
[akpm@linux-foundation.org: repair comment layout]
Reported-by: "Jorge Boncompte [DTI2]" <jorge@dti2.net>
Tested-by: "Jorge Boncompte [DTI2]" <jorge@dti2.net>
Signed-off-by: Nick Piggin <npiggin@suse.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
H Hartley Sweeten [Tue, 5 Jan 2010 20:45:18 +0000 (13:45 -0700)]
fs/dcache.c: CodingStyle cleanup
Cleanup EXPORT* macros according to Documantation/CodingStyle.
Move EXPORT* macros to the line immediately after the closing
function brace.
Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
projects / linux-2.6-microblaze.git / log