Eric Lee / smarc-fsl-linux-kernel

13 Feb, 2007

1 commit

  • 33a266dda   [PATCH] Make BH_Unwritten a first class bufferhead flag V2 ... Browse Code »

    Currently, XFS uses BH_PrivateStart for flagging unwritten extent state in a
    bufferhead. Recently, I found the long standing mmap/unwritten extent
    conversion bug, and it was to do with partial page invalidation not clearing
    the unwritten flag from bufferheads attached to the page but beyond EOF. See
    here for a full explaination:

    http://oss.sgi.com/archives/xfs/2006-12/msg00196.html

    The solution I have checked into the XFS dev tree involves duplicating code
    from block_invalidatepage to clear the unwritten flag from the bufferhead(s),
    and then calling block_invalidatepage() to do the rest.

    Christoph suggested that this would be better solved by pushing the unwritten
    flag into the common buffer head flags and just adding the call to
    discard_buffer():

    http://oss.sgi.com/archives/xfs/2006-12/msg00239.html

    The following patch makes BH_Unwritten a first class citizen.

    Signed-off-by: Dave Chinner
    Acked-by: Christoph Hellwig
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    David Chinner
     

28 Sep, 2006

2 commits

11 Jul, 2006

1 commit

01 Jul, 2006

1 commit

27 Jun, 2006

1 commit

20 Jun, 2006

1 commit

09 Jun, 2006

2 commits

31 Mar, 2006

1 commit

17 Mar, 2006

1 commit

14 Mar, 2006

4 commits

11 Jan, 2006

2 commits

  • f6d6d4fcd   [XFS] Initial pass at going directly-to-bio on the buffered IO path. This ... Browse Code »

    allows us to submit much larger I/Os instead of sending down lots of small
    buffer_heads. To do this we need to have a rather complicated I/O
    submission and completion tracking infrastructure. Part of the latter has
    been merged already a long time ago for direct I/O support. Part of the
    problem is that we need to track sub-pagesize regions and for that we
    still need buffer_heads for the time beeing. Long-term I hope we can move
    to better data strucutures and/or maybe move this to fs/mpage.c instead of
    having it in XFS. Original patch from Nathan Scott with various updates
    from David Chinner and Christoph Hellwig.

    SGI-PV: 947118
    SGI-Modid: xfs-linux-melb:xfs-kern:203822a

    Signed-off-by: Christoph Hellwig
    Signed-off-by: Nathan Scott

    Christoph Hellwig
     
  • ce8e922c0   [XFS] Complete the pagebuf -> xfs_buf naming convention transition, ... Browse Code »

    finally.

    SGI-PV: 947038
    SGI-Modid: xfs-linux-melb:xfs-kern:24866a

    Signed-off-by: Nathan Scott

    Nathan Scott
     

09 Nov, 2005

1 commit

  • 733482e44   [PATCH] changing CONFIG_LOCALVERSION rebuilds too much, for no good reason ... Browse Code »

    This patch removes almost all inclusions of linux/version.h. The 3
    #defines are unused in most of the touched files.

    A few drivers use the simple KERNEL_VERSION(a,b,c) macro, which is
    unfortunatly in linux/version.h.

    There are also lots of #ifdef for long obsolete kernels, this was not
    touched. In a few places, the linux/version.h include was move to where
    the LINUX_VERSION_CODE was used.

    quilt vi `find * -type f -name "*.[ch]"|xargs grep -El '(UTS_RELEASE|LINUX_VERSION_CODE|KERNEL_VERSION|linux/version.h)'|grep -Ev '(/(boot|coda|drm)/|~$)'`

    search pattern:
    /UTS_RELEASE\|LINUX_VERSION_CODE\|KERNEL_VERSION\|linux\/\(utsname\|version\).h

    Signed-off-by: Olaf Hering
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Olaf Hering
     

02 Nov, 2005

4 commits

05 Sep, 2005

1 commit

02 Sep, 2005

1 commit

22 Jun, 2005

2 commits

  • 2a5a68b84   Merge rsync://oss.sgi.com/git/xfs-2.6 Browse Code »
    Linus Torvalds
     
  • 39c715b71   [PATCH] smp_processor_id() cleanup ... Browse Code »

    This patch implements a number of smp_processor_id() cleanup ideas that
    Arjan van de Ven and I came up with.

    The previous __smp_processor_id/_smp_processor_id/smp_processor_id API
    spaghetti was hard to follow both on the implementational and on the
    usage side.

    Some of the complexity arose from picking wrong names, some of the
    complexity comes from the fact that not all architectures defined
    __smp_processor_id.

    In the new code, there are two externally visible symbols:

    - smp_processor_id(): debug variant.

    - raw_smp_processor_id(): nondebug variant. Replaces all existing
    uses of _smp_processor_id() and __smp_processor_id(). Defined
    by every SMP architecture in include/asm-*/smp.h.

    There is one new internal symbol, dependent on DEBUG_PREEMPT:

    - debug_smp_processor_id(): internal debug variant, mapped to
    smp_processor_id().

    Also, i moved debug_smp_processor_id() from lib/kernel_lock.c into a new
    lib/smp_processor_id.c file. All related comments got updated and/or
    clarified.

    I have build/boot tested the following 8 .config combinations on x86:

    {SMP,UP} x {PREEMPT,!PREEMPT} x {DEBUG_PREEMPT,!DEBUG_PREEMPT}

    I have also build/boot tested x64 on UP/PREEMPT/DEBUG_PREEMPT. (Other
    architectures are untested, but should work just fine.)

    Signed-off-by: Ingo Molnar
    Signed-off-by: Arjan van de Ven
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Ingo Molnar
     

21 Jun, 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