Eric Lee / smarc-fsl-linux-kernel

04 Jan, 2012

3 commits

21 Jul, 2011

1 commit

  • 02c24a821   fs: push i_mutex and filemap_write_and_wait down into ->fsync() handlers ... Browse Code »

    Btrfs needs to be able to control how filemap_write_and_wait_range() is called
    in fsync to make it less of a painful operation, so push down taking i_mutex and
    the calling of filemap_write_and_wait() down into the ->fsync() handlers. Some
    file systems can drop taking the i_mutex altogether it seems, like ext3 and
    ocfs2. For correctness sake I just pushed everything down in all cases to make
    sure that we keep the current behavior the same for everybody, and then each
    individual fs maintainer can make up their mind about what to do from there.
    Thanks,

    Acked-by: Jan Kara
    Signed-off-by: Josef Bacik
    Signed-off-by: Al Viro

    Josef Bacik
     

20 Jul, 2011

1 commit

20 Jun, 2011

1 commit

07 Jan, 2011

1 commit

14 Aug, 2010

1 commit

28 May, 2010

1 commit

01 Jan, 2009

1 commit

  • 6badd79bd   kill ->dir_notify() ... Browse Code »

    Remove the hopelessly misguided ->dir_notify(). The only instance (cifs)
    has been broken by design from the very beginning; the objects it creates
    are never destroyed, keep references to struct file they can outlive, nothing
    that could possibly evict them exists on close(2) path *and* no locking
    whatsoever is done to prevent races with close(), should the previous, er,
    deficiencies someday be dealt with.

    Signed-off-by: Al Viro

    Al Viro
     

27 Jul, 2008

1 commit

  • e6305c43e   [PATCH] sanitize ->permission() prototype ... Browse Code »

    * kill nameidata * argument; map the 3 bits in ->flags anybody cares
    about to new MAY_... ones and pass with the mask.
    * kill redundant gfs2_iop_permission()
    * sanitize ecryptfs_permission()
    * fix remaining places where ->permission() instances might barf on new
    MAY_... found in mask.

    The obvious next target in that direction is permission(9)

    folded fix for nfs_permission() breakage from Miklos Szeredi

    Signed-off-by: Al Viro

    Al Viro
     

08 Feb, 2008

1 commit

10 Jul, 2007

1 commit

09 May, 2007

1 commit

13 Feb, 2007

1 commit

  • 754661f14   [PATCH] mark struct inode_operations const 1 ... 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
     

06 Jan, 2007

1 commit

  • be6aab0e9   [PATCH] fix memory corruption from misinterpreted bad_inode_ops return values ... Browse Code »

    CVE-2006-5753 is for a case where an inode can be marked bad, switching
    the ops to bad_inode_ops, which are all connected as:

    static int return_EIO(void)
    {
    return -EIO;
    }

    #define EIO_ERROR ((void *) (return_EIO))

    static struct inode_operations bad_inode_ops =
    {
    .create = bad_inode_create
    ...etc...

    The problem here is that the void cast causes return types to not be
    promoted, and for ops such as listxattr which expect more than 32 bits of
    return value, the 32-bit -EIO is interpreted as a large positive 64-bit
    number, i.e. 0x00000000fffffffa instead of 0xfffffffa.

    This goes particularly badly when the return value is taken as a number of
    bytes to copy into, say, a user's buffer for example...

    I originally had coded up the fix by creating a return_EIO_ macro
    for each return type, like this:

    static int return_EIO_int(void)
    {
    return -EIO;
    }
    #define EIO_ERROR_INT ((void *) (return_EIO_int))

    static struct inode_operations bad_inode_ops =
    {
    .create = EIO_ERROR_INT,
    ...etc...

    but Al felt that it was probably better to create an EIO-returner for each
    actual op signature. Since so few ops share a signature, I just went ahead
    & created an EIO function for each individual file & inode op that returns
    a value.

    Signed-off-by: Eric Sandeen
    Cc: Al Viro
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric Sandeen
     

01 Oct, 2006

1 commit

29 Mar, 2006

1 commit

  • 4b6f5d20b   [PATCH] Make most file operations structs in fs/ const ... Browse Code »

    This is a conversion to make the various file_operations structs in fs/
    const. Basically a regexp job, with a few manual fixups

    The goal is both to increase correctness (harder to accidentally write to
    shared datastructures) and reducing the false sharing of cachelines with
    things that get dirty in .data (while .rodata is nicely read only and thus
    cache clean)

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

    Arjan van de Ven
     

06 May, 2005

1 commit

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