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[PATCH] mutex subsystem, add default include/asm-*/mutex.h files

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add the per-arch mutex.h files for the remaining architectures.

We default to asm-generic/mutex-dec.h, because that performs
quite well on most arches. Arches that do not have atomic
decrement/increment instructions should switch to mutex-xchg.h
instead. Arches can also provide their own implementation for
the mutex fastpath primitives.

Signed-off-by: Arjan van de Ven <[email protected]>
Signed-off-by: Ingo Molnar <[email protected]>
This commit is contained in:
Arjan van de Ven 2006-01-09 15:59:19 -08:00 • committed by Ingo Molnar
commit 2acbb8c657
19 changed files with 171 additions and 0 deletions
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9
include/asm-m32r/mutex.h Normal file
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/*
* Pull in the generic implementation for the mutex fastpath.
*
* TODO: implement optimized primitives instead, or leave the generic
* implementation in place, or pick the atomic_xchg() based generic
* implementation. (see asm-generic/mutex-xchg.h for details)
*/
#include <asm-generic/mutex-dec.h>