Eric Lee / smarc-fsl-linux-kernel

10 Mar, 2011

1 commit

  • 7eaceacca   block: remove per-queue plugging ... Browse Code »
    86

    Code has been converted over to the new explicit on-stack plugging,
    and delay users have been converted to use the new API for that.
    So lets kill off the old plugging along with aops->sync_page().

    Signed-off-by: Jens Axboe

    Jens Axboe
     

10 Aug, 2010

2 commits

  • 4e29d50a2   BFS: clean up the superblock usage ... Browse Code »

    BFS is a very simple FS and its superblocks contains only static
    information and is never changed. However, the BFS code for some
    misterious reasons marked its buffer head as dirty from time to
    time, but nothing in that buffer was ever changed.

    This patch removes all the BFS superblock manipulation, simply
    because it is not needed. It removes:

    1. The si_sbh filed from 'struct bfs_sb_info' because it is not
    needed. We only need to read the SB once on mount to get the
    start of data blocks and the FS size. After this, we can forget
    about the SB.
    2. All instances of 'mark_buffer_dirty(sbh)' for BFS SB because
    it is never changed.
    3. The '->sync_fs()' method because there is nothing to sync
    (inodes are synched by VFS).
    4. The '->write_super()' method, again, because the SB is never
    changed.

    Tested-by: Artem Bityutskiy
    Signed-off-by: Artem Bityutskiy
    Signed-off-by: Al Viro

    Artem Bityutskiy
     
  • 155130a4f   get rid of block_write_begin_newtrunc ... Browse Code »

    Move the call to vmtruncate to get rid of accessive blocks to the callers
    in preparation of the new truncate sequence and rename the non-truncating
    version to block_write_begin.

    While we're at it also remove several unused arguments to block_write_begin.

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Al Viro

    Christoph Hellwig
     

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
     

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