Doug / smarc-fsl-linux-kernel

27 Jul, 2008

1 commit

  • 3f165e4cf   bfs: kill BKL ... Browse Code »

    Replace the BKL-based locking scheme used in the bfs driver by a private
    filesystem-wide mutex.

    Signed-off-by: Dmitri Vorobiev
    Cc: Tigran Aivazian
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dmitri Vorobiev
     

15 Nov, 2007

1 commit

  • f433dc563   Fixes to the BFS filesystem driver ... Browse Code »

    I found a few bugs in the BFS driver. Detailed description of the bugs as
    well as the steps to reproduce the errors are given in the kernel bugzilla.
    Please follow these links for more information:

    http://bugzilla.kernel.org/show_bug.cgi?id=9363
    http://bugzilla.kernel.org/show_bug.cgi?id=9364
    http://bugzilla.kernel.org/show_bug.cgi?id=9365
    http://bugzilla.kernel.org/show_bug.cgi?id=9366

    This patch fixes the bugs described above. Besides, the patch introduces
    coding style changes to make the BFS driver conform to the requirements
    specified for Linux kernel code. Finally, I made a few cosmetic changes
    such as removal of trivial debug output.

    Also, the patch removes the fields `si_lf_ioff' and `si_lf_sblk' of the
    in-core superblock structure. These fields are initialized but never
    actually used.

    If you are wondering why I need BFS, here is the answer: I am using this
    driver in the context of Linux kernel classes I am teaching in the Moscow
    State University and in the International Institute of Information
    Technology in Pune, India.

    Signed-off-by: Dmitri Vorobiev
    Cc: Tigran Aivazian
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Dmitri Vorobiev
     

17 Oct, 2007

1 commit

10 Jul, 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
     

01 Oct, 2006

1 commit

  • 543ade1fc   [PATCH] Streamline generic_file_* interfaces and filemap cleanups ... Browse Code »

    This patch cleans up generic_file_*_read/write() interfaces. Christoph
    Hellwig gave me the idea for this clean ups.

    In a nutshell, all filesystems should set .aio_read/.aio_write methods and use
    do_sync_read/ do_sync_write() as their .read/.write methods. This allows us
    to cleanup all variants of generic_file_* routines.

    Final available interfaces:

    generic_file_aio_read() - read handler
    generic_file_aio_write() - write handler
    generic_file_aio_write_nolock() - no lock write handler

    __generic_file_aio_write_nolock() - internal worker routine

    Signed-off-by: Badari Pulavarty
    Signed-off-by: Christoph Hellwig
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Badari Pulavarty
     

29 Jun, 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
     

10 Sep, 2005

1 commit

  • fac92becd   [PATCH] bfs: fix endianness, signedness; add trivial bugfix ... Browse Code »

    * Makes BFS code endianness-clean.

    * Fixes some signedness warnings.

    * Fixes a problem in fs/bfs/inode.c:164 where inodes not synced to disk
    don't get fully marked as clean. Here's how to reproduce it:

    # mount -o loop -t bfs /bfs.img /mnt
    # df -i /mnt
    Filesystem Inodes IUsed IFree IUse% Mounted on
    /bfs.img 48 1 47 3% /mnt
    # df -k /mnt
    Filesystem 1K-blocks Used Available Use% Mounted on
    /bfs.img 512 5 508 1% /mnt
    # cp 60k-archive.zip /mnt/mt.zip
    # df -k /mnt
    Filesystem 1K-blocks Used Available Use% Mounted on
    /bfs.img 512 65 447 13% /mnt
    # df -i /mnt
    Filesystem Inodes IUsed IFree IUse% Mounted on
    /bfs.img 48 2 46 5% /mnt
    # rm /mnt/mt.zip
    # echo $?
    0

    [If the unlink happens before the buffers flush, the following happens:]

    # df -i /mnt
    Filesystem Inodes IUsed IFree IUse% Mounted on
    /bfs.img 48 2 46 5% /mnt
    # df -k /mnt
    Filesystem 1K-blocks Used Available Use% Mounted on
    /bfs.img 512 65 447 13% /mnt

    fs/bfs/bfs.h | 1

    Signed-off-by: Andrew Stribblehill
    Cc:
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Andrew Stribblehill
     

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