Eric Lee / smarc-ti-linux-kernel

09 Jan, 2006

4 commits

  • ac34dd052   [PATCH] fs/smbfs/proc.c: fix data corruption in smb_proc_setattr_unix() ... Browse Code »

    This patch fixes a data corruption in smb_proc_setattr_unix()
    (smb_filetype_from_mode() returns an u32, and there are only four bytes
    reserved for it in data.

    Signed-off-by: Adrian Bunk
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Maciej W. Rozycki
     
  • 5160ee6fc   [PATCH] shrink dentry struct ... Browse Code »

    Some long time ago, dentry struct was carefully tuned so that on 32 bits
    UP, sizeof(struct dentry) was exactly 128, ie a power of 2, and a multiple
    of memory cache lines.

    Then RCU was added and dentry struct enlarged by two pointers, with nice
    results for SMP, but not so good on UP, because breaking the above tuning
    (128 + 8 = 136 bytes)

    This patch reverts this unwanted side effect, by using an union (d_u),
    where d_rcu and d_child are placed so that these two fields can share their
    memory needs.

    At the time d_free() is called (and d_rcu is really used), d_child is known
    to be empty and not touched by the dentry freeing.

    Lockless lookups only access d_name, d_parent, d_lock, d_op, d_flags (so
    the previous content of d_child is not needed if said dentry was unhashed
    but still accessed by a CPU because of RCU constraints)

    As dentry cache easily contains millions of entries, a size reduction is
    worth the extra complexity of the ugly C union.

    Signed-off-by: Eric Dumazet
    Cc: Dipankar Sarma
    Cc: Maneesh Soni
    Cc: Miklos Szeredi
    Cc: "Paul E. McKenney"
    Cc: Ian Kent
    Cc: Paul Jackson
    Cc: Al Viro
    Cc: Christoph Hellwig
    Cc: Trond Myklebust
    Cc: Neil Brown
    Cc: James Morris
    Cc: Stephen Smalley
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric Dumazet
     
  • 54b21a799   [PATCH] fix possible PAGE_CACHE_SHIFT overflows ... Browse Code »

    We've had two instances recently of overflows when doing

    64_bit_value = (32_bit_value << PAGE_CACHE_SHIFT)

    I did a tree-wide grep of `<page_base)

    Cc: Oleg Drokin
    Cc: David Howells
    Cc: David Woodhouse
    Cc:
    Cc: Christoph Hellwig
    Cc: Anton Altaparmakov
    Cc: Jeff Dike
    Cc: Paolo 'Blaisorblade' Giarrusso
    Cc: Roman Zippel
    Cc:
    Cc: Miklos Szeredi
    Cc: Russell King
    Cc: Trond Myklebust
    Cc: Neil Brown
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Morton
     
  • 28fd12982   [PATCH] Fix and add EXPORT_SYMBOL(filemap_write_and_wait) ... Browse Code »

    This patch add EXPORT_SYMBOL(filemap_write_and_wait) and use it.

    See mm/filemap.c:

    And changes the filemap_write_and_wait() and filemap_write_and_wait_range().

    Current filemap_write_and_wait() doesn't wait if filemap_fdatawrite()
    returns error. However, even if filemap_fdatawrite() returned an
    error, it may have submitted the partially data pages to the device.
    (e.g. in the case of -ENOSPC)

    Andrew Morton writes,

    If filemap_fdatawrite() returns an error, this might be due to some
    I/O problem: dead disk, unplugged cable, etc. Given the generally
    crappy quality of the kernel's handling of such exceptions, there's a
    good chance that the filemap_fdatawait() will get stuck in D state
    forever.

    So, this patch doesn't wait if filemap_fdatawrite() returns the -EIO.

    Trond, could you please review the nfs part? Especially I'm not sure,
    nfs must use the "filemap_fdatawrite(inode->i_mapping) == 0", or not.

    Acked-by: Trond Myklebust
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    OGAWA Hirofumi
     

07 Nov, 2005

2 commits

11 Sep, 2005

1 commit

  • 041e0e3b1   [PATCH] fs: fix-up schedule_timeout() usage ... Browse Code »

    Use schedule_timeout_{,un}interruptible() instead of
    set_current_state()/schedule_timeout() to reduce kernel size. Also use helper
    functions to convert between human time units and jiffies rather than constant
    HZ division to avoid rounding errors.

    Signed-off-by: Nishanth Aravamudan
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nishanth Aravamudan
     

10 Sep, 2005

1 commit

  • fef266580   [PATCH] update filesystems for new delete_inode behavior ... Browse Code »

    Update the file systems in fs/ implementing a delete_inode() callback to
    call truncate_inode_pages(). One implementation note: In developing this
    patch I put the calls to truncate_inode_pages() at the very top of those
    filesystems delete_inode() callbacks in order to retain the previous
    behavior. I'm guessing that some of those could probably be optimized.

    Signed-off-by: Mark Fasheh
    Acked-by: Christoph Hellwig
    Signed-off-by: Hugh Dickins
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mark Fasheh
     

30 Aug, 2005

1 commit

20 Aug, 2005

1 commit

  • 008b150a3   [PATCH] Fix up symlink function pointers ... Browse Code »

    This fixes up the symlink functions for the calling convention change:

    * afs, autofs4, befs, devfs, freevxfs, jffs2, jfs, ncpfs, procfs,
    smbfs, sysvfs, ufs, xfs - prototype change for ->follow_link()
    * befs, smbfs, xfs - same for ->put_link()

    Signed-off-by: Linus Torvalds

    Al Viro
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »
    212

    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