Eric Lee / linux-smarc-t335x-v3.2

15 Mar, 2011

4 commits

28 Oct, 2010

1 commit

  • 3e24ad2ff   9p: Add a Direct IO support for non-cached operations. ... Browse Code »

    The presence of v9fs_direct_IO() in the address space ops vector
    allowes open() O_DIRECT flags which would have failed otherwise.

    In the non-cached mode, we shunt off direct read and write requests before
    the VFS gets them, so this method should never be called.

    Direct IO is not 'yet' supported in the cached mode. Hence when
    this routine is called through generic_file_aio_read(), the read/write fails
    with an error.

    Signed-off-by: Venkateswararao Jujjuri
    Signed-off-by: Eric Van Hensbergen

    jvrao
     

24 Sep, 2009

1 commit

  • 60e78d2c9   9p: Add fscache support to 9p ... Browse Code »

    This patch adds a persistent, read-only caching facility for
    9p clients using the FS-Cache caching backend.

    When the fscache facility is enabled, each inode is associated
    with a corresponding vcookie which is an index into the FS-Cache
    indexing tree. The FS-Cache indexing tree is indexed at 3 levels:
    - session object associated with each mount.
    - inode/vcookie
    - actual data (pages)

    A cache tag is chosen randomly for each session. These tags can
    be read off /sys/fs/9p/caches and can be passed as a mount-time
    parameter to re-attach to the specified caching session.

    Signed-off-by: Abhishek Kulkarni
    Signed-off-by: Eric Van Hensbergen

    Abhishek Kulkarni
     

15 Jul, 2009

1 commit

18 Oct, 2008

1 commit

  • fbedadc16   9p: move readn meta-function from client to fs layer ... Browse Code »

    There are a couple of methods in the client code which aren't actually
    wire operations. To keep things organized cleaner, these operations are
    being moved to the fs layer.

    This patch moves the readn meta-function (which executes multiple wire
    reads until a buffer is full) to the fs layer.

    Signed-off-by: Eric Van Hensbergen

    Eric Van Hensbergen
     

15 May, 2008

1 commit

  • ee443996a   9p: Documentation updates ... Browse Code »

    The kernel-doc comments of much of the 9p system have been in disarray since
    reorganization. This patch fixes those problems, adds additional documentation
    and a template book which collects the 9p information.

    Signed-off-by: Eric Van Hensbergen

    Eric Van Hensbergen
     

15 Jul, 2007

1 commit

  • bd238fb43   9p: Reorganization of 9p file system code ... Browse Code »

    This patchset moves non-filesystem interfaces of v9fs from fs/9p to net/9p.
    It moves the transport, packet marshalling and connection layers to net/9p
    leaving only the VFS related files in fs/9p. This work is being done in
    preparation for in-kernel 9p servers as well as alternate 9p clients (other
    than VFS).

    Signed-off-by: Latchesar Ionkov
    Signed-off-by: Eric Van Hensbergen

    Latchesar Ionkov
     

22 May, 2007

1 commit

  • e8edc6e03   Detach sched.h from mm.h ... Browse Code »

    First thing mm.h does is including sched.h solely for can_do_mlock() inline
    function which has "current" dereference inside. By dealing with can_do_mlock()
    mm.h can be detached from sched.h which is good. See below, why.

    This patch
    a) removes unconditional inclusion of sched.h from mm.h
    b) makes can_do_mlock() normal function in mm/mlock.c
    c) exports can_do_mlock() to not break compilation
    d) adds sched.h inclusions back to files that were getting it indirectly.
    e) adds less bloated headers to some files (asm/signal.h, jiffies.h) that were
    getting them indirectly

    Net result is:
    a) mm.h users would get less code to open, read, preprocess, parse, ... if
    they don't need sched.h
    b) sched.h stops being dependency for significant number of files:
    on x86_64 allmodconfig touching sched.h results in recompile of 4083 files,
    after patch it's only 3744 (-8.3%).

    Cross-compile tested on

    all arm defconfigs, all mips defconfigs, all powerpc defconfigs,
    alpha alpha-up
    arm
    i386 i386-up i386-defconfig i386-allnoconfig
    ia64 ia64-up
    m68k
    mips
    parisc parisc-up
    powerpc powerpc-up
    s390 s390-up
    sparc sparc-up
    sparc64 sparc64-up
    um-x86_64
    x86_64 x86_64-up x86_64-defconfig x86_64-allnoconfig

    as well as my two usual configs.

    Signed-off-by: Alexey Dobriyan
    Signed-off-by: Linus Torvalds

    Alexey Dobriyan
     

09 May, 2007

1 commit

19 Feb, 2007

1 commit

  • e03abc0c9   9p: implement optional loose read cache ... Browse Code »

    While cacheing is generally frowned upon in the 9p world, it has its
    place -- particularly in situations where the remote file system is
    exclusive and/or read-only. The vacfs views of venti content addressable
    store are a real-world instance of such a situation. To facilitate higher
    performance for these workloads (and eventually use the fscache patches),
    we have enabled a "loose" cache mode which does not attempt to maintain
    any form of consistency on the page-cache or dcache. This results in over
    two orders of magnitude performance improvement for cacheable block reads
    in the Bonnie benchmark. The more aggressive use of the dcache also seems
    to improve metadata operational performance.

    Signed-off-by: Eric Van Hensbergen

    Eric Van Hensbergen
     

09 Dec, 2006

1 commit

01 Jul, 2006

1 commit

29 Jun, 2006

1 commit

26 Mar, 2006

1 commit

  • 42e8c509c   [PATCH] v9fs: update license boilerplate ... Browse Code »

    Update license boilerplate to specify GPLv2 and remove the (at your option
    clause). This change was agreed to by all the copyright holders (approvals
    can be found on v9fs-developer mailing list).

    Signed-off-by: Eric Van Hensbergen
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric Van Hensbergen
     

19 Jan, 2006

1 commit

  • 147b31cf0   [PATCH] v9fs: add readpage support ... Browse Code »

    v9fs mmap support was originally removed from v9fs at Al Viro's request,
    but recently there have been requests from folks who want readpage
    functionality (primarily to enable execution of files mounted via 9P).
    This patch adds readpage support (but not writepage which contained most of
    the objectionable code). It passes fsx-linux (and other regressions) so it
    should be relatively safe.

    Signed-off-by: Eric Van Hensbergen
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Eric Van Hensbergen