Eric Lee / smarc-fsl-linux-kernel

09 May, 2007

2 commits

  • 2856f5e31   atomic.h: atomic_add_unless as inline. Remove system.h atomic.h circular dependency ... Browse Code »

    atomic_add_unless as inline. Remove system.h atomic.h circular dependency.
    I agree (with Andi Kleen) this typeof is not needed and more error
    prone. All the original atomic.h code that uses cmpxchg (which includes
    the atomic_add_unless) uses defines instead of inline functions,
    probably to circumvent a circular dependency between system.h and
    atomic.h on powerpc (which my patch addresses). Therefore, it makes
    sense to use inline functions that will provide type checking.

    atomic_add_unless as inline. Remove system.h atomic.h circular dependency.
    Digging into the FRV architecture shows me that it is also affected by
    such a circular dependency. Here is the diff applying this against the
    rest of my atomic.h patches.

    It applies over the atomic.h standardization patches.

    Signed-off-by: Mathieu Desnoyers
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mathieu Desnoyers
     
  • 819791319   atomic.h: add atomic64 cmpxchg, xchg and add_unless to ia64 ... Browse Code »

    Signed-off-by: Mathieu Desnoyers
    Cc: "Luck, Tony"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Mathieu Desnoyers
     

23 Mar, 2006

1 commit

  • 0b2fcfdb8   [PATCH] atomic: add_unless cmpxchg optimise ... Browse Code »

    Without branch hints, the very unlikely chance of the loop repeating due to
    cmpxchg failure is unrolled with gcc-4 that I have tested.

    Improve this for architectures with a native cas/cmpxchg. llsc archs
    should try to implement this natively.

    Signed-off-by: Nick Piggin
    Cc: Andi Kleen
    Cc: Martin Schwidefsky
    Cc: Heiko Carstens
    Cc: "David S. Miller"
    Cc: Roman Zippel
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nick Piggin
     

10 Jan, 2006

1 commit

07 Jan, 2006

1 commit

  • d3cb48714   [PATCH] atomic_long_t & include/asm-generic/atomic.h V2 ... Browse Code »

    Several counters already have the need to use 64 atomic variables on 64 bit
    platforms (see mm_counter_t in sched.h). We have to do ugly ifdefs to fall
    back to 32 bit atomic on 32 bit platforms.

    The VM statistics patch that I am working on will also make more extensive
    use of atomic64.

    This patch introduces a new type atomic_long_t by providing definitions in
    asm-generic/atomic.h that works similar to the c "long" type. Its 32 bits
    on 32 bit platforms and 64 bits on 64 bit platforms.

    Also cleans up the determination of the mm_counter_t in sched.h.

    Signed-off-by: Christoph Lameter
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Christoph Lameter
     

14 Nov, 2005

2 commits

  • 8426e1f6a   [PATCH] atomic: inc_not_zero ... Browse Code »

    Introduce an atomic_inc_not_zero operation. Make this a special case of
    atomic_add_unless because lockless pagecache actually wants
    atomic_inc_not_negativeone due to its offset refcount.

    Signed-off-by: Nick Piggin
    Cc: "Paul E. McKenney"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nick Piggin
     
  • 4a6dae6d3   [PATCH] atomic: cmpxchg ... Browse Code »

    Introduce an atomic_cmpxchg operation.

    Signed-off-by: Nick Piggin
    Cc: "Paul E. McKenney"
    Signed-off-by: Andrew Morton
    Signed-off-by: Linus Torvalds

    Nick Piggin
     

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