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    SubjectRe: [patch 04/28] Add cmpxchg64 and cmpxchg64_local to mips
    On Tue, Oct 30, 2007 at 03:16:01PM -0400, Mathieu Desnoyers wrote:

    > Index: linux-2.6-lttng/include/asm-mips/cmpxchg.h
    > ===================================================================
    > --- linux-2.6-lttng.orig/include/asm-mips/cmpxchg.h 2007-10-12 12:05:06.000000000 -0400
    > +++ linux-2.6-lttng/include/asm-mips/cmpxchg.h 2007-10-12 12:08:56.000000000 -0400
    > @@ -104,4 +104,13 @@ extern void __cmpxchg_called_with_bad_po
    > #define cmpxchg(ptr, old, new) __cmpxchg(ptr, old, new, smp_llsc_mb())
    > #define cmpxchg_local(ptr, old, new) __cmpxchg(ptr, old, new, )
    >
    > +#define cmpxchg64 cmpxchg
    > +
    > +#ifdef CONFIG_64BIT
    > +#define cmpxchg64_local cmpxchg_local

    This implementation means cmpxchg64_local will also silently take 32-bit
    arguments without making noises at compile time. I think it should.

    Ralf
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