Doug / smarc-fsl-linux-kernel

05 Aug, 2008

1 commit

06 Feb, 2008

1 commit

  • eebd2aa35   Pagecache zeroing: zero_user_segment, zero_user_segments and zero_user ... Browse Code »

    Simplify page cache zeroing of segments of pages through 3 functions

    zero_user_segments(page, start1, end1, start2, end2)

    Zeros two segments of the page. It takes the position where to
    start and end the zeroing which avoids length calculations and
    makes code clearer.

    zero_user_segment(page, start, end)

    Same for a single segment.

    zero_user(page, start, length)

    Length variant for the case where we know the length.

    We remove the zero_user_page macro. Issues:

    1. Its a macro. Inline functions are preferable.

    2. The KM_USER0 macro is only defined for HIGHMEM.

    Having to treat this special case everywhere makes the
    code needlessly complex. The parameter for zeroing is always
    KM_USER0 except in one single case that we open code.

    Avoiding KM_USER0 makes a lot of code not having to be dealing
    with the special casing for HIGHMEM anymore. Dealing with
    kmap is only necessary for HIGHMEM configurations. In those
    configurations we use KM_USER0 like we do for a series of other
    functions defined in highmem.h.

    Since KM_USER0 is depends on HIGHMEM the existing zero_user_page
    function could not be a macro. zero_user_* functions introduced
    here can be be inline because that constant is not used when these
    functions are called.

    Also extract the flushing of the caches to be outside of the kmap.

    [akpm@linux-foundation.org: fix nfs and ntfs build]
    [akpm@linux-foundation.org: fix ntfs build some more]
    Signed-off-by: Christoph Lameter
    Cc: Steven French
    Cc: Michael Halcrow
    Cc:
    Cc: Steven Whitehouse
    Cc: Trond Myklebust
    Cc: "J. Bruce Fields"
    Cc: Anton Altaparmakov
    Cc: Mark Fasheh
    Cc: David Chinner
    Cc: Michael Halcrow
    Cc: Steven French
    Cc: Steven Whitehouse
    Cc: Trond Myklebust
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     

04 Nov, 2007

1 commit

  • ebab89909   NTFS: Fix read regression. ... Browse Code »

    The regression was caused by:
    commit[a32ea1e1f925399e0d81ca3f7394a44a6dafa12c] Fix read/truncate race

    This causes ntfs_readpage() to be called for a zero i_size inode, which
    failed when the file was compressed and non-resident.

    Thanks a lot to Mike Galbraith for reporting the issue and tracking down
    the commit that caused the regression.

    Looking into it I found three bugs which the patch fixes.

    Signed-off-by: Anton Altaparmakov
    Tested-by: Mike Galbraith
    Signed-off-by: Linus Torvalds

    Anton Altaparmakov
     

01 Oct, 2006

1 commit

24 Mar, 2006

1 commit

09 Sep, 2005

1 commit

05 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