Eric Lee / smarc-fsl-linux-kernel

08 Mar, 2010

1 commit

06 Mar, 2010

1 commit

  • a9185b41a   pass writeback_control to ->write_inode ... Browse Code »

    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
    Signed-off-by: Al Viro

    Christoph Hellwig
     

09 Feb, 2010

1 commit

  • 3ad2f3fbb   tree-wide: Assorted spelling fixes ... Browse Code »

    In particular, several occurances of funny versions of 'success',
    'unknown', 'therefore', 'acknowledge', 'argument', 'achieve', 'address',
    'beginning', 'desirable', 'separate' and 'necessary' are fixed.

    Signed-off-by: Daniel Mack
    Cc: Joe Perches
    Cc: Junio C Hamano
    Signed-off-by: Jiri Kosina

    Daniel Mack
     

27 Jan, 2010

3 commits

12 Jun, 2009

5 commits

  • e28964365   affs: add ->sync_fs ... Browse Code »

    Add a ->sync_fs method for data integrity syncs. Factor out common code
    between affs_put_super, affs_write_super and the new affs_sync_fs into
    a helper.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Al Viro

    Christoph Hellwig
     
  • c47587955   sanitize ->fsync() for affs ... Browse Code »

    unfortunately, for affs (especially for affs directories) we have
    no real way to keep track of metadata ownership. So we have to
    do more or less what file_fsync() does, but we do *not* need to
    call write_super() there.

    Signed-off-by: Al Viro

    Al Viro
     
  • 337eb00a2   Push BKL down into ->remount_fs() ... Browse Code »

    [xfs, btrfs, capifs, shmem don't need BKL, exempt]

    Signed-off-by: Alessio Igor Bogani
    Signed-off-by: Al Viro

    Alessio Igor Bogani
     
  • ebc1ac164   ->write_super lock_super pushdown ... Browse Code »

    Push down lock_super into ->write_super instances and remove it from the
    caller.

    Following filesystem don't need ->s_lock in ->write_super and are skipped:

    * bfs, nilfs2 - no other uses of s_lock and have internal locks in
    ->write_super
    * ext2 - uses BKL in ext2_write_super and has internal calls without s_lock
    * reiserfs - no other uses of s_lock as has reiserfs_write_lock (BKL) in
    ->write_super
    * xfs - no other uses of s_lock and uses internal lock (buffer lock on
    superblock buffer) to serialize ->write_super. Also xfs_fs_write_super
    is superflous and will go away in the next merge window

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Al Viro

    Christoph Hellwig
     
  • 6cfd01484   push BKL down into ->put_super ... Browse Code »

    Move BKL into ->put_super from the only caller. A couple of
    filesystems had trivial enough ->put_super (only kfree and NULLing of
    s_fs_info + stuff in there) to not get any locking: coda, cramfs, efs,
    hugetlbfs, omfs, qnx4, shmem, all others got the full treatment. Most
    of them probably don't need it, but I'd rather sort that out individually.
    Preferably after all the other BKL pushdowns in that area.

    [AV: original used to move lock_super() down as well; these changes are
    removed since we don't do lock_super() at all in generic_shutdown_super()
    now]
    [AV: fuse, btrfs and xfs are known to need no damn BKL, exempt]

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Al Viro

    Christoph Hellwig
     

09 May, 2009

1 commit

  • 2a32cebd6   Fix races around the access to ->s_options ... Browse Code »

    Put generic_show_options read access to s_options under rcu_read_lock,
    split save_mount_options() into "we are setting it the first time"
    (uses in foo_fill_super()) and "we are relacing and freeing the old one",
    synchronize_rcu() before kfree() in the latter.

    Signed-off-by: Al Viro

    Al Viro
     

03 Apr, 2009

1 commit

28 Mar, 2009

2 commits

22 Jan, 2009

1 commit

06 Jan, 2009

2 commits

  • 520c85346   Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6 ... Browse Code »

    * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs-2.6:
    inotify: fix type errors in interfaces
    fix breakage in reiserfs_new_inode()
    fix the treatment of jfs special inodes
    vfs: remove duplicate code in get_fs_type()
    add a vfs_fsync helper
    sys_execve and sys_uselib do not call into fsnotify
    zero i_uid/i_gid on inode allocation
    inode->i_op is never NULL
    ntfs: don't NULL i_op
    isofs check for NULL ->i_op in root directory is dead code
    affs: do not zero ->i_op
    kill suid bit only for regular files
    vfs: lseek(fd, 0, SEEK_CUR) race condition

    Linus Torvalds
     
  • c765d4790   affs: do not zero ->i_op ... Browse Code »

    it is already set to empty table and should never be NULL

    Signed-off-by: Al Viro

    Al Viro
     

05 Jan, 2009

1 commit

  • 54566b2c1   fs: symlink write_begin allocation context fix ... Browse Code »

    With the write_begin/write_end aops, page_symlink was broken because it
    could no longer pass a GFP_NOFS type mask into the point where the
    allocations happened. They are done in write_begin, which would always
    assume that the filesystem can be entered from reclaim. This bug could
    cause filesystem deadlocks.

    The funny thing with having a gfp_t mask there is that it doesn't really
    allow the caller to arbitrarily tinker with the context in which it can be
    called. It couldn't ever be GFP_ATOMIC, for example, because it needs to
    take the page lock. The only thing any callers care about is __GFP_FS
    anyway, so turn that into a single flag.

    Add a new flag for write_begin, AOP_FLAG_NOFS. Filesystems can now act on
    this flag in their write_begin function. Change __grab_cache_page to
    accept a nofs argument as well, to honour that flag (while we're there,
    change the name to grab_cache_page_write_begin which is more instructive
    and does away with random leading underscores).

    This is really a more flexible way to go in the end anyway -- if a
    filesystem happens to want any extra allocations aside from the pagecache
    ones in ints write_begin function, it may now use GFP_KERNEL (rather than
    GFP_NOFS) for common case allocations (eg. ocfs2_alloc_write_ctxt, for a
    random example).

    [kosaki.motohiro@jp.fujitsu.com: fix ubifs]
    [kosaki.motohiro@jp.fujitsu.com: fix fuse]
    Signed-off-by: Nick Piggin
    Reviewed-by: KOSAKI Motohiro
    Cc: [2.6.28.x]
    Signed-off-by: KOSAKI Motohiro
    Signed-off-by: Andrew Morton
    [ Cleaned up the calling convention: just pass in the AOP flags
    untouched to the grab_cache_page_write_begin() function. That
    just simplifies everybody, and may even allow future expansion of the
    logic. - Linus ]
    Signed-off-by: Linus Torvalds

    Nick Piggin
     

14 Nov, 2008

1 commit

  • 215599815   CRED: Wrap task credential accesses in the AFFS filesystem ... Browse Code »

    Wrap access to task credentials so that they can be separated more easily from
    the task_struct during the introduction of COW creds.

    Change most current->(|e|s|fs)[ug]id to current_(|e|s|fs)[ug]id().

    Change some task->e?[ug]id to task_e?[ug]id(). In some places it makes more
    sense to use RCU directly rather than a convenient wrapper; these will be
    addressed by later patches.

    Signed-off-by: David Howells
    Reviewed-by: James Morris
    Acked-by: Serge Hallyn
    Cc: Roman Zippel
    Signed-off-by: James Morris

    David Howells
     

14 Oct, 2008

1 commit

  • a447c0932   vfs: Use const for kernel parser table ... Browse Code »

    This is a much better version of a previous patch to make the parser
    tables constant. Rather than changing the typedef, we put the "const" in
    all the various places where its required, allowing the __initconst
    exception for nfsroot which was the cause of the previous trouble.

    This was posted for review some time ago and I believe its been in -mm
    since then.

    Signed-off-by: Steven Whitehouse
    Cc: Alexander Viro
    Signed-off-by: Linus Torvalds

    Steven Whitehouse
     

25 Aug, 2008

1 commit

27 Jul, 2008

3 commits

  • 516e0cc56   [PATCH] f_count may wrap around ... Browse Code »

    make it atomic_long_t; while we are at it, get rid of useless checks in affs,
    hfs and hpfs - ->open() always has it equal to 1, ->release() - to 0.

    Signed-off-by: Al Viro

    Al Viro
     
  • 51cc50685   SL*B: drop kmem cache argument from constructor ... Browse Code »

    Kmem cache passed to constructor is only needed for constructors that are
    themselves multiplexeres. Nobody uses this "feature", nor does anybody uses
    passed kmem cache in non-trivial way, so pass only pointer to object.

    Non-trivial places are:
    arch/powerpc/mm/init_64.c
    arch/powerpc/mm/hugetlbpage.c

    This is flag day, yes.

    Signed-off-by: Alexey Dobriyan
    Acked-by: Pekka Enberg
    Acked-by: Christoph Lameter
    Cc: Jon Tollefson
    Cc: Nick Piggin
    Cc: Matt Mackall
    [akpm@linux-foundation.org: fix arch/powerpc/mm/hugetlbpage.c]
    [akpm@linux-foundation.org: fix mm/slab.c]
    [akpm@linux-foundation.org: fix ubifs]
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     
  • 7d135a5d5   affs: convert s_bmlock into a mutex ... Browse Code »

    The semaphore s_bmlock is used as a mutex. Convert it to the mutex API.

    Signed-off-by: Matthias Kaehlcke
    Cc: Roman Zippel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Matthias Kaehlcke
     

07 May, 2008

1 commit

  • dca3c3365   [PATCH] fix reservation discarding in affs ... Browse Code »

    - remove affs_put_inode, so preallocations aren't discared unnecessarily
    often.
    - remove affs_drop_inode, it's called with a spinlock held, so it can't
    use a mutex.
    - make i_opencnt atomic
    - avoid direct b_count manipulations
    - a few allocation failure fixes, so that these are more gracefully
    handled now.
    Signed-off-by: Roman Zippel
    Signed-off-by: Christoph Hellwig
    Signed-off-by: Al Viro

    Roman Zippel
     

30 Apr, 2008

1 commit

  • 6369a4abb   affs: be*_add_cpu conversion ... Browse Code »

    replace all:
    big_endian_variable = cpu_to_beX(beX_to_cpu(big_endian_variable) +
    expression_in_cpu_byteorder);
    with:
    beX_add_cpu(&big_endian_variable, expression_in_cpu_byteorder);
    generated with semantic patch

    Signed-off-by: Marcin Slusarz
    Cc: Roman Zippel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Marcin Slusarz
     

29 Apr, 2008

2 commits

  • 8d4b69002   fs/affs/file.c: use BUG_ON ... Browse Code »

    if (...) BUG(); should be replaced with BUG_ON(...) when the test has no
    side-effects to allow a definition of BUG_ON that drops the code completely.

    The semantic patch that makes this change is as follows:
    (http://www.emn.fr/x-info/coccinelle/)

    //
    @ disable unlikely @ expression E,f; @@

    (
    if () { BUG(); }
    |
    - if (unlikely(E)) { BUG(); }
    + BUG_ON(E);
    )

    @@ expression E,f; @@

    (
    if () { BUG(); }
    |
    - if (E) { BUG(); }
    + BUG_ON(E);
    )
    //

    Signed-off-by: Julia Lawall
    Cc: Roman Zippel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Julia Lawall
     
  • 6db27dd9d   affs: handle match_strdup failure ... Browse Code »

    fs/affs/super.c (parse_options): Remove useless initialization. Handle
    match_strdup failure.

    Signed-off-by: Jim Meyering
    Cc: Roman Zippel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Jim Meyering
     

09 Feb, 2008

1 commit

  • e9b3961b6   mount options: fix affs ... Browse Code »

    Add a .show_options super operation to affs.

    Use generic_show_options() and save the complete option string in
    affs_fill_super() and affs_remount().

    Signed-off-by: Miklos Szeredi
    Cc: Roman Zippel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Miklos Szeredi
     

08 Feb, 2008

2 commits

  • 210f85596   iget: stop AFFS from using iget() and read_inode() ... Browse Code »

    Stop the AFFS filesystem from using iget() and read_inode(). Replace
    affs_read_inode() with affs_iget(), and call that instead of iget().
    affs_iget() then uses iget_locked() directly and returns a proper error code
    instead of an inode in the event of an error.

    affs_fill_super() returns any error incurred when getting the root inode
    instead of EINVAL.

    [akpm@linux-foundation.org: coding-style fixes]
    Signed-off-by: David Howells
    Cc: Roman Zippel
    Acked-by: Christoph Hellwig
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     
  • e231c2ee6   Convert ERR_PTR(PTR_ERR(p)) instances to ERR_CAST(p) ... Browse Code »

    Convert instances of ERR_PTR(PTR_ERR(p)) to ERR_CAST(p) using:

    perl -spi -e 's/ERR_PTR[(]PTR_ERR[(](.*)[)][)]/ERR_CAST(\1)/' `grep -rl 'ERR_PTR[(]*PTR_ERR' fs crypto net security`

    Signed-off-by: David Howells
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Howells
     

17 Oct, 2007

3 commits

20 Jul, 2007

1 commit

  • 20c2df83d   mm: Remove slab destructors from kmem_cache_create(). ... Browse Code »

    Slab destructors were no longer supported after Christoph's
    c59def9f222d44bb7e2f0a559f2906191a0862d7 change. They've been
    BUGs for both slab and slub, and slob never supported them
    either.

    This rips out support for the dtor pointer from kmem_cache_create()
    completely and fixes up every single callsite in the kernel (there were
    about 224, not including the slab allocator definitions themselves,
    or the documentation references).

    Signed-off-by: Paul Mundt

    Paul Mundt
     

10 Jul, 2007

1 commit

22 May, 2007

1 commit

  • e8edc6e03   Detach sched.h from mm.h ... Browse Code »

    First thing mm.h does is including sched.h solely for can_do_mlock() inline
    function which has "current" dereference inside. By dealing with can_do_mlock()
    mm.h can be detached from sched.h which is good. See below, why.

    This patch
    a) removes unconditional inclusion of sched.h from mm.h
    b) makes can_do_mlock() normal function in mm/mlock.c
    c) exports can_do_mlock() to not break compilation
    d) adds sched.h inclusions back to files that were getting it indirectly.
    e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
    getting them indirectly

    Net result is:
    a) mm.h users would get less code to open, read, preprocess, parse, ... if
    they don't need sched.h
    b) sched.h stops being dependency for significant number of files:
    on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
    after patch it's only 3744 (-8.3%).

    Cross-compile tested on

    all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
    alpha alpha-up
    arm
    i386 i386-up i386-defconfig i386-allnoconfig
    ia64 ia64-up
    m68k
    mips
    parisc parisc-up
    powerpc powerpc-up
    s390 s390-up
    sparc sparc-up
    sparc64 sparc64-up
    um-x86_64
    x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig

    as well as my two usual configs.

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

17 May, 2007

1 commit

  • a35afb830   Remove SLAB_CTOR_CONSTRUCTOR ... Browse Code »

    SLAB_CTOR_CONSTRUCTOR is always specified. No point in checking it.

    Signed-off-by: Christoph Lameter
    Cc: David Howells
    Cc: Jens Axboe
    Cc: Steven French
    Cc: Michael Halcrow
    Cc: OGAWA Hirofumi
    Cc: Miklos Szeredi
    Cc: Steven Whitehouse
    Cc: Roman Zippel
    Cc: David Woodhouse
    Cc: Dave Kleikamp
    Cc: Trond Myklebust
    Cc: "J. Bruce Fields"
    Cc: Anton Altaparmakov
    Cc: Mark Fasheh
    Cc: Paul Mackerras
    Cc: Christoph Hellwig
    Cc: Jan Kara
    Cc: David Chinner
    Cc: "David S. Miller"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     

10 May, 2007

1 commit