10 years agoNFS: Simplify nfs_wb_page_cancel()
Trond Myklebust [Sat, 20 Feb 2010 01:03:21 +0000]
NFS: Simplify nfs_wb_page_cancel()

In all cases we should be able to just remove the request and call
cancel_dirty_page().

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

10 years agoNFS: Ensure inode is always marked I_DIRTY_DATASYNC, if it has unstable pages
Trond Myklebust [Sat, 20 Feb 2010 01:03:18 +0000]
NFS: Ensure inode is always marked I_DIRTY_DATASYNC, if it has unstable pages

Since nfs_scan_list() doesn't wait for locked pages, we have a race in
which it is possible to end up with an inode that needs to send a COMMIT,
but which does not have the I_DIRTY_DATASYNC flag set.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

10 years agoNFS: Run COMMIT as an asynchronous RPC call when wbc->for_background is set
Trond Myklebust [Sat, 20 Feb 2010 01:02:24 +0000]
NFS: Run COMMIT as an asynchronous RPC call when wbc->for_background is set

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Wu Fengguang <fengguang.wu@intel.com>

10 years agoNFS: Reduce the number of unnecessary COMMIT calls
Trond Myklebust [Sat, 20 Feb 2010 01:00:02 +0000]
NFS: Reduce the number of unnecessary COMMIT calls

If the caller is doing a non-blocking flush, and there are still writebacks
pending on the wire, we can usually defer the COMMIT call until those
writes are done.

Also ensure that we honour the wbc->nonblocking flag.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

10 years agoNFS: Add a count of the number of unstable writes carried by an inode
Trond Myklebust [Sat, 20 Feb 2010 00:53:39 +0000]
NFS: Add a count of the number of unstable writes carried by an inode

In order to know when we should do opportunistic commits of the unstable
writes, when the VM is doing a background flush, we add a field to count
the number of unstable writes.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

10 years agoNFS: Cleanup - move nfs_write_inode() into fs/nfs/write.c
Trond Myklebust [Sat, 20 Feb 2010 00:46:56 +0000]
NFS: Cleanup - move nfs_write_inode() into fs/nfs/write.c

The sole purpose of nfs_write_inode is to commit unstable writes, so
move it into fs/nfs/write.c, and make nfs_commit_inode static.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

10 years agoMerge branch 'write_inode2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro...
Linus Torvalds [Fri, 5 Mar 2010 19:53:53 +0000]
Merge branch 'write_inode2' of git://git./linux/kernel/git/viro/vfs-2.6

* 'write_inode2' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
  pass writeback_control to ->write_inode
  make sure data is on disk before calling ->write_inode

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Fri, 5 Mar 2010 19:46:31 +0000]
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()

10 years agox86: fix mtrr missing kernel-doc
Randy Dunlap [Fri, 5 Mar 2010 17:52:52 +0000]
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>

10 years agoMerge branch 'perf-probes-for-linus-2' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 5 Mar 2010 18:50:22 +0000]
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

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Fri, 5 Mar 2010 18:47:57 +0000]
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

10 years agoMerge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Linus Torvalds [Fri, 5 Mar 2010 18:47:00 +0000]
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()
  ...

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/pkl/squashfs-linus
Linus Torvalds [Fri, 5 Mar 2010 18:46:04 +0000]
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

10 years agopass writeback_control to ->write_inode
Christoph Hellwig [Fri, 5 Mar 2010 08:21:37 +0000]
pass writeback_control to ->write_inode

This gives the filesystem more information about the writeback that
is happening.  Trond requested this for the NFS unstable write handling,
and other filesystems might benefit from this too by beeing able to
distinguish between the different callers in more detail.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agomake sure data is on disk before calling ->write_inode
Christoph Hellwig [Fri, 5 Mar 2010 08:21:21 +0000]
make sure data is on disk before calling ->write_inode

Similar to the fsync issue fixed a while ago in commit
2daea67e966dc0c42067ebea015ddac6834cef88 we need to write for data to
actually hit the disk before writing out the metadata to guarantee
data integrity for filesystems that modify the inode in the data I/O
completion path.  Currently XFS and NFS handle this manually, and AFS
has a write_inode method that does nothing but waiting for data, while
others are possibly missing out on this.

Fortunately this change has a lot less impact than the fsync change
as none of the write_inode methods starts data writeout of any form
by itself.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoSquashfs: get rid of obsolete definition in header file
Phillip Lougher [Thu, 25 Feb 2010 01:31:13 +0000]
Squashfs: get rid of obsolete definition in header file

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>

10 years agoSquashfs: get rid of obsolete variable in struct squashfs_sb_info
Phillip Lougher [Thu, 25 Feb 2010 00:54:48 +0000]
Squashfs: get rid of obsolete variable in struct squashfs_sb_info

Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk>

10 years agoSwitch !O_CREAT case to use of do_last()
Al Viro [Sat, 26 Dec 2009 15:56:19 +0000]
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>

10 years agoGet rid of symlink body copying
Al Viro [Sat, 26 Dec 2009 13:37:05 +0000]
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>

10 years agoFinish pulling of -ESTALE handling to upper level in do_filp_open()
Al Viro [Sat, 26 Dec 2009 12:21:48 +0000]
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>

10 years agoTurn do_link spaghetty into a normal loop
Al Viro [Sat, 26 Dec 2009 12:16:40 +0000]
Turn do_link spaghetty into a normal loop

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoUnify exits in O_CREAT handling
Al Viro [Sat, 26 Dec 2009 12:09:49 +0000]
Unify exits in O_CREAT handling

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoKill is_link argument of do_last()
Al Viro [Sat, 26 Dec 2009 12:04:50 +0000]
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>

10 years agoPull handling of LAST_BIND into do_last(), clean up ok: part in do_filp_open()
Al Viro [Sat, 26 Dec 2009 12:01:01 +0000]
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>

10 years agoLeave mangled flag only for setting nd.intent.open.flag
Al Viro [Thu, 24 Dec 2009 12:15:41 +0000]
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>

10 years agoGet rid of passing mangled flag to do_last()
Al Viro [Thu, 24 Dec 2009 11:51:13 +0000]
Get rid of passing mangled flag to do_last()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoDon't pass mangled open_flag to finish_open()
Al Viro [Thu, 24 Dec 2009 11:49:47 +0000]
Don't pass mangled open_flag to finish_open()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agopull more into do_last()
Al Viro [Thu, 24 Dec 2009 08:39:50 +0000]
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>

10 years agobail out with ELOOP earlier in do_link loop
Al Viro [Thu, 24 Dec 2009 07:27:30 +0000]
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>

10 years agopull the common predecessors into do_last()
Al Viro [Thu, 24 Dec 2009 07:12:06 +0000]
pull the common predecessors into do_last()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agopostpone __putname() until after do_last()
Al Viro [Thu, 24 Dec 2009 07:08:19 +0000]
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>

10 years agounroll do_last: loop in do_filp_open()
Al Viro [Thu, 24 Dec 2009 07:05:43 +0000]
unroll do_last: loop in do_filp_open()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoShift releasing nd->root from do_last() to its caller
Al Viro [Thu, 24 Dec 2009 07:02:38 +0000]
Shift releasing nd->root from do_last() to its caller

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agogut do_filp_open() a bit more (do_last separation)
Al Viro [Thu, 24 Dec 2009 06:58:28 +0000]
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>

10 years agobeginning to untangle do_filp_open()
Al Viro [Thu, 24 Dec 2009 06:26:48 +0000]
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>

10 years agoext4: fix up rb_root initializations to use RB_ROOT
Venkatesh Pallipadi [Fri, 5 Mar 2010 03:25:21 +0000]
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>

10 years agoMerge branch 'for-linus' of git://git.open-osd.org/linux-open-osd
Linus Torvalds [Thu, 4 Mar 2010 16:26:08 +0000]
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

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6
Linus Torvalds [Thu, 4 Mar 2010 16:24:47 +0000]
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().

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/davem/ide-next-2.6
Linus Torvalds [Thu, 4 Mar 2010 16:24:06 +0000]
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
  ...

10 years agoMerge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw/async_tx
Linus Torvalds [Thu, 4 Mar 2010 16:20:14 +0000]
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
  ...

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6
Linus Torvalds [Thu, 4 Mar 2010 16:15:33 +0000]
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

10 years agoMerge git://git.infradead.org/battery-2.6
Linus Torvalds [Thu, 4 Mar 2010 16:04:22 +0000]
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

10 years agoMerge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/lrg/voltage-2.6
Linus Torvalds [Thu, 4 Mar 2010 15:52:06 +0000]
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
  ...

10 years agoMerge git://git.kernel.org/pub/scm/linux/kernel/git/brodo/pcmcia-2.6
Linus Torvalds [Thu, 4 Mar 2010 15:51:36 +0000]
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

10 years agoMerge branch 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied...
Linus Torvalds [Thu, 4 Mar 2010 15:49:37 +0000]
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

10 years agox86: Issue at least one memory barrier in stop_machine_text_poke()
Masami Hiramatsu [Thu, 4 Mar 2010 03:38:50 +0000]
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>

10 years agoperf probe: Correct probe syntax on command line help
Masami Hiramatsu [Thu, 4 Mar 2010 03:38:43 +0000]
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>

10 years agoext4: Code cleanup for EXT4_IOC_MOVE_EXT ioctl
Akira Fujita [Thu, 4 Mar 2010 05:39:24 +0000]
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>

10 years agoext4: Fix the NULL reference in double_down_write_data_sem()
Akira Fujita [Thu, 4 Mar 2010 05:34:58 +0000]
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>

10 years agoext4: Fix insertion point of extent in mext_insert_across_blocks()
Akira Fujita [Thu, 4 Mar 2010 05:31:06 +0000]
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>

10 years agopadata: Allocate the cpumask for the padata instance
Steffen Klassert [Thu, 4 Mar 2010 05:30:22 +0000]
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>

10 years agoext4: consolidate in_range() definitions
Akinobu Mita [Thu, 4 Mar 2010 04:55:01 +0000]
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>

10 years agoext4: cleanup to use ext4_grp_offs_to_block()
Akinobu Mita [Thu, 4 Mar 2010 04:53:25 +0000]
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>

10 years agoext4: cleanup to use ext4_group_first_block_no()
Akinobu Mita [Thu, 4 Mar 2010 04:53:39 +0000]
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>

10 years agoMerge branch 'coh' into dmaengine
Dan Williams [Thu, 4 Mar 2010 04:22:21 +0000]
Merge branch 'coh' into dmaengine

10 years agoioat: cleanup ->timer_fn() and ->cleanup_fn() prototypes
Dan Williams [Thu, 4 Mar 2010 04:21:13 +0000]
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>

10 years agoioat3: interrupt coalescing
Dan Williams [Thu, 4 Mar 2010 04:21:13 +0000]
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>

10 years agoioat: close potential BUG_ON race in the descriptor cleanup path
Dan Williams [Thu, 4 Mar 2010 04:21:10 +0000]
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>

10 years agoPrioritize synchronous signals over 'normal' signals
Linus Torvalds [Tue, 2 Mar 2010 16:36:46 +0000]
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>

10 years agoMerge branch 'for-fsnotify' into for-linus
Al Viro [Wed, 3 Mar 2010 22:12:40 +0000]
Merge branch 'for-fsnotify' into for-linus

10 years agoext4: Release page references acquired in ext4_da_block_invalidatepages
Jan Kara [Wed, 3 Mar 2010 21:19:32 +0000]
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>

10 years agoinit: Open /dev/console from rootfs
Eric W. Biederman [Wed, 3 Mar 2010 07:53:19 +0000]
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>

10 years agomqueue: fix typo "failues" -> "failures"
André Goddard Rosa [Tue, 23 Feb 2010 07:04:27 +0000]
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>

10 years agomqueue: only set error codes if they are really necessary
André Goddard Rosa [Tue, 23 Feb 2010 07:04:26 +0000]
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>

10 years agomqueue: simplify do_open() error handling
André Goddard Rosa [Tue, 23 Feb 2010 07:04:25 +0000]
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>

10 years agomqueue: apply mathematics distributivity on mq_bytes calculation
André Goddard Rosa [Tue, 23 Feb 2010 07:04:24 +0000]
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>

10 years agomqueue: remove unneeded info->messages initialization
André Goddard Rosa [Tue, 23 Feb 2010 07:04:23 +0000]
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>

10 years agomqueue: fix mq_open() file descriptor leak on user-space processes
André Goddard Rosa [Tue, 23 Feb 2010 07:04:28 +0000]
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>

10 years agofix race in d_splice_alias()
Al Viro [Wed, 3 Mar 2010 19:13:08 +0000]
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>

10 years agoset S_DEAD on unlink() and non-directory rename() victims
Al Viro [Wed, 3 Mar 2010 19:12:08 +0000]
set S_DEAD on unlink() and non-directory rename() victims

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agovfs: add NOFOLLOW flag to umount(2)
Miklos Szeredi [Wed, 10 Feb 2010 11:15:53 +0000]
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>

10 years agoget rid of ->mnt_parent in tomoyo/realpath
Al Viro [Fri, 5 Feb 2010 14:37:21 +0000]
get rid of ->mnt_parent in tomoyo/realpath

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agohppfs can use existing proc_mnt, no need for do_kern_mount() in there
Al Viro [Fri, 5 Feb 2010 14:34:36 +0000]
hppfs can use existing proc_mnt, no need for do_kern_mount() in there

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoMirror MS_KERNMOUNT in ->mnt_flags
Al Viro [Fri, 5 Feb 2010 14:30:46 +0000]
Mirror MS_KERNMOUNT in ->mnt_flags

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoget rid of useless vfsmount_lock use in put_mnt_ns()
Al Viro [Fri, 5 Feb 2010 07:21:06 +0000]
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>

10 years agoTake vfsmount_lock to fs/internal.h
Al Viro [Fri, 5 Feb 2010 07:01:14 +0000]
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>

10 years agoget rid of insanity with namespace roots in tomoyo
Al Viro [Fri, 5 Feb 2010 06:41:33 +0000]
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>

10 years agotake check for new events in namespace (guts of mounts_poll()) to namespace.c
Al Viro [Fri, 5 Feb 2010 05:40:25 +0000]
take check for new events in namespace (guts of mounts_poll()) to namespace.c

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoDon't mess with generic_permission() under ->d_lock in hpfs
Al Viro [Mon, 1 Feb 2010 16:05:16 +0000]
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>

10 years agosanitize const/signedness for udf
Al Viro [Mon, 1 Feb 2010 02:28:48 +0000]
sanitize const/signedness for udf

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agonilfs: sanitize const/signedness in dealing with ->d_name.name
Al Viro [Mon, 1 Feb 2010 02:03:58 +0000]
nilfs: sanitize const/signedness in dealing with ->d_name.name

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agonilfs really shouldn't slap struct dentry on stack...
Al Viro [Mon, 1 Feb 2010 02:02:09 +0000]
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>

10 years agosanitize const/signedness of ufs a bit
Al Viro [Mon, 1 Feb 2010 01:49:54 +0000]
sanitize const/signedness of ufs a bit

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agosanitize signedness/const for pointers to char in hpfs a bit
Al Viro [Sun, 31 Jan 2010 22:09:29 +0000]
sanitize signedness/const for pointers to char in hpfs a bit

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agonew helper: iterate_mounts()
Al Viro [Sun, 31 Jan 2010 03:51:25 +0000]
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>

10 years agofix NFS4 handling of mountpoint stat
Al Viro [Sat, 30 Jan 2010 21:11:21 +0000]
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>

10 years agoClean follow_dotdot() up a bit
Al Viro [Sat, 30 Jan 2010 20:47:29 +0000]
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>

10 years agofix mnt_mountpoint abuse in smack
Al Viro [Sat, 30 Jan 2010 20:27:27 +0000]
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>

10 years agoa couple of mntget+dget -> path_get in nfs4proc
Al Viro [Sat, 30 Jan 2010 18:51:04 +0000]
a couple of mntget+dget -> path_get in nfs4proc

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoSwitch alloc_nfs_open_context() to struct path
Al Viro [Sat, 30 Jan 2010 18:44:07 +0000]
Switch alloc_nfs_open_context() to struct path

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoNew helper: path_is_under(path1, path2)
Al Viro [Sat, 30 Jan 2010 18:16:21 +0000]
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>

10 years agoVFS: Clean up shared mount flag propagation
Valerie Aurora [Tue, 26 Jan 2010 19:20:47 +0000]
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>

10 years agokill unused invalidate_inode_pages helper
Christoph Hellwig [Tue, 26 Jan 2010 16:27:20 +0000]
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>

10 years agofs: re-order super_block to remove 16 bytes of padding on 64bit builds
Richard Kennedy [Tue, 26 Jan 2010 14:12:43 +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>

10 years agoSimplify failure exits in s390/hypfs fill_super()
Al Viro [Mon, 25 Jan 2010 23:36:07 +0000]
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>

10 years agoDon't bother with d_genocide in rpc_pipe
Al Viro [Mon, 25 Jan 2010 23:30:38 +0000]
Don't bother with d_genocide in rpc_pipe

kill_litter_super() from ->kill_sb() will take care of the junk

10 years agoUse kill_litter_super() in autofs4 ->kill_sb()
Al Viro [Sun, 24 Jan 2010 05:28:52 +0000]
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>

10 years agoGet rid of mnt_mountpoint abuses in ext4
Al Viro [Sun, 24 Jan 2010 01:10:29 +0000]
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>

10 years agoSanitize autofs_dev_ioctl_ismountpoint()
Al Viro [Sun, 24 Jan 2010 01:08:53 +0000]
Sanitize autofs_dev_ioctl_ismountpoint()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

10 years agoswitch infiniband uverbs to anon_inodes
Al Viro [Mon, 18 Jan 2010 06:38:00 +0000]
switch infiniband uverbs to anon_inodes

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>