lkml.org 
[lkml]   [2007]   [Aug]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    Patch in this message
    /
    Date
    From
    Subject[patch 10/28] Add cmpxchg_local to cris
    Use the new generic cmpxchg_local (disables interrupt). Also use the generic
    cmpxchg as fallback if SMP is not set.

    Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
    CC: clameter@sgi.com
    CC: starvik@axis.com
    ---
    include/asm-cris/system.h | 15 +++++++++++++++
    1 file changed, 15 insertions(+)

    Index: linux-2.6-lttng/include/asm-cris/system.h
    ===================================================================
    --- linux-2.6-lttng.orig/include/asm-cris/system.h 2007-08-07 14:31:52.000000000 -0400
    +++ linux-2.6-lttng/include/asm-cris/system.h 2007-08-07 14:48:53.000000000 -0400
    @@ -66,6 +66,21 @@ static inline unsigned long __xchg(unsig
    return x;
    }

    +#include <asm-generic/cmpxchg-local.h>
    +
    +/*
    + * cmpxchg_local and cmpxchg64_local are atomic wrt current CPU. Always make
    + * them available.
    + */
    +#define cmpxchg_local(ptr,o,n) \
    + (__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o), \
    + (unsigned long)(n), sizeof(*(ptr)))
    +#define cmpxchg64_local(ptr,o,n) __cmpxchg64_local_generic((ptr), (o), (n))
    +
    +#ifndef CONFIG_SMP
    +#include <asm-generic/cmpxchg.h>
    +#endif
    +
    #define arch_align_stack(x) (x)

    void default_idle(void);
    --
    Mathieu Desnoyers
    Computer Engineering Ph.D. Student, Ecole Polytechnique de Montreal
    OpenPGP key fingerprint: 8CD5 52C3 8E3C 4140 715F BA06 3F25 A8FE 3BAE 9A68
    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.kernel.org
    More majordomo info at http://vger.kernel.org/majordomo-info.html
    Please read the FAQ at http://www.tux.org/lkml/

    \
     
     \ /
      Last update: 2007-08-27 17:59    [W:0.024 / U:0.084 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site