Eric Lee / smarc-fsl-linux-kernel

04 Jan, 2012

3 commits

02 Nov, 2011

1 commit

20 Jul, 2011

2 commits

28 May, 2011

1 commit

27 May, 2011

1 commit

  • 32e51f141   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: (25 commits)
    cifs: remove unnecessary dentry_unhash on rmdir/rename_dir
    ocfs2: remove unnecessary dentry_unhash on rmdir/rename_dir
    exofs: remove unnecessary dentry_unhash on rmdir/rename_dir
    nfs: remove unnecessary dentry_unhash on rmdir/rename_dir
    ext2: remove unnecessary dentry_unhash on rmdir/rename_dir
    ext3: remove unnecessary dentry_unhash on rmdir/rename_dir
    ext4: remove unnecessary dentry_unhash on rmdir/rename_dir
    btrfs: remove unnecessary dentry_unhash in rmdir/rename_dir
    ceph: remove unnecessary dentry_unhash calls
    vfs: clean up vfs_rename_other
    vfs: clean up vfs_rename_dir
    vfs: clean up vfs_rmdir
    vfs: fix vfs_rename_dir for FS_RENAME_DOES_D_MOVE filesystems
    libfs: drop unneeded dentry_unhash
    vfs: update dentry_unhash() comment
    vfs: push dentry_unhash on rename_dir into file systems
    vfs: push dentry_unhash on rmdir into file systems
    vfs: remove dget() from dentry_unhash()
    vfs: dentry_unhash immediately prior to rmdir
    vfs: Block mmapped writes while the fs is frozen
    ...

    Linus Torvalds
     

26 May, 2011

3 commits

  • e4eaac06b   vfs: push dentry_unhash on rename_dir into file systems ... Browse Code »

    Only a few file systems need this. Start by pushing it down into each
    rename method (except gfs2 and xfs) so that it can be dealt with on a
    per-fs basis.

    Acked-by: Christoph Hellwig
    Signed-off-by: Sage Weil
    Signed-off-by: Al Viro

    Sage Weil
     
  • 79bf7c732   vfs: push dentry_unhash on rmdir into file systems ... Browse Code »

    Only a few file systems need this. Start by pushing it down into each
    fs rmdir method (except gfs2 and xfs) so it can be dealt with on a per-fs
    basis.

    This does not change behavior for any in-tree file systems.

    Acked-by: Christoph Hellwig
    Signed-off-by: Sage Weil
    Signed-off-by: Al Viro

    Sage Weil
     
  • 64252c75a   vfs: remove dget() from dentry_unhash() ... Browse Code »
    44

    This serves no useful purpose that I can discern. All callers (rename,
    rmdir) hold their own reference to the dentry.

    A quick audit of all file systems showed no relevant checks on the value
    of d_count in vfs_rmdir/vfs_rename_dir paths.

    Signed-off-by: Sage Weil
    Signed-off-by: Al Viro

    Sage Weil
     

10 May, 2011

4 commits

03 Mar, 2011

1 commit

  • 9a311b96c   hpfs: remove the BKL ... Browse Code »

    This removes the BKL in hpfs in a rather awful
    way, by making the code only work on uniprocessor
    systems without kernel preemption, as suggested
    by Andi Kleen.

    The HPFS code probably has close to zero remaining
    users on current kernels, all archeological uses of
    the file system can probably be done with the significant
    restrictions.

    The hpfs_lock/hpfs_unlock functions are left in the
    code, sincen Mikulas has indicated that he is still
    interested in fixing it in a better way.

    Signed-off-by: Arnd Bergmann
    Acked-by: Andi Kleen
    Cc: Mikulas Patocka
    Cc: linux-fsdevel@vger.kernel.org

    Arnd Bergmann
     

07 Jan, 2011

1 commit

04 Mar, 2010

2 commits

13 Jul, 2009

1 commit

  • 405f55712   headers: smp_lock.h redux ... Browse Code »

    * Remove smp_lock.h from files which don't need it (including some headers!)
    * Add smp_lock.h to files which do need it
    * Make smp_lock.h include conditional in hardirq.h
    It's needed only for one kernel_locked() usage which is under CONFIG_PREEMPT

    This will make hardirq.h inclusion cheaper for every PREEMPT=n config
    (which includes allmodconfig/allyesconfig, BTW)

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

    Alexey Dobriyan
     

14 Nov, 2008

1 commit

  • de395b8ac   CRED: Wrap task credential accesses in the HPFS 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: Mikulas Patocka
    Signed-off-by: James Morris

    David Howells
     

23 Oct, 2008

1 commit

27 Jul, 2008

1 commit

  • 1bd5191d9   [patch 05/14] hpfs: dont call permission() ... Browse Code »

    hpfs_unlink() calls permission() prior to truncating the file. HPFS
    doesn't define a .permission method, so replace with explicit call to
    generic_permission().

    This is equivalent, except that devcgroup_inode_permission() and
    security_inode_permission() are not called.

    The truncation is just an implementation detail of the unlink, so
    these security checks are unnecessary.

    I suspect that even calling generic_permission() is unnecessary, since
    we shouldn't mind if the file isn't writable. But I leave that to the
    maintainer to decide.

    Signed-off-by: Miklos Szeredi
    CC: Mikulas Patocka

    Miklos Szeredi
     

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
     

13 Feb, 2007

1 commit

  • 92e1d5be9   [PATCH] mark struct inode_operations const 2 ... Browse Code »

    Many struct inode_operations in the kernel can be "const". Marking them const
    moves these to the .rodata section, which avoids false sharing with potential
    dirty data. In addition it'll catch accidental writes at compile time to
    these shared resources.

    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Arjan van de Ven
     

01 Oct, 2006

3 commits

  • ce71ec368   [PATCH] r/o bind mounts: monitor zeroing of i_nlink ... Browse Code »

    Some filesystems, instead of simply decrementing i_nlink, simply zero it
    during an unlink operation. We need to catch these in addition to the
    decrement operations.

    Signed-off-by: Dave Hansen
    Acked-by: Christoph Hellwig
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dave Hansen
     
  • d8c76e6f4   [PATCH] r/o bind mount prepwork: inc_nlink() helper ... Browse Code »

    This is mostly included for parity with dec_nlink(), where we will have some
    more hooks. This one should stay pretty darn straightforward for now.

    Signed-off-by: Dave Hansen
    Acked-by: Christoph Hellwig
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dave Hansen
     
  • 9a53c3a78   [PATCH] r/o bind mounts: unlink: monitor i_nlink ... Browse Code »

    When a filesystem decrements i_nlink to zero, it means that a write must be
    performed in order to drop the inode from the filesystem.

    We're shortly going to have keep filesystems from being remounted r/o between
    the time that this i_nlink decrement and that write occurs.

    So, add a little helper function to do the decrements. We'll tie into it in a
    bit to note when i_nlink hits zero.

    Signed-off-by: Dave Hansen
    Acked-by: Christoph Hellwig
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dave Hansen
     

29 Jun, 2006

1 commit

23 Mar, 2006

1 commit

  • 7bf6d78dd   [PATCH] sem2mutex: HPFS ... Browse Code »

    Semaphore to mutex conversion.

    The conversion was generated via scripts, and the result was validated
    automatically via a script as well.

    Signed-off-by: Ingo Molnar
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds