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* [IA64] fix bug in ia64 __mutex_fastpath_trylockChen, Kenneth W2006-04-08
| | | | | | | | | | | The parenthesis around "likely" used in ia64 __mutex_fastpath_trylock is incorrect, and it leads to broken mutex_trylock. Here is the patch that fixed the bug. I removed the likely altogether because there is no branch and gcc does a reasonable job at predicating the return value. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [IA64] implement ia64 specific mutex primitivesChen, Kenneth W2006-01-26
| | | | | | | | | Implement ia64 optimized mutex primitives. It properly uses acquire/release memory ordering semantics in lock/unlock path. 2nd version making them all static inline functions. Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Signed-off-by: Tony Luck <tony.luck@intel.com>
* [PATCH] mutex subsystem, add default include/asm-*/mutex.h filesArjan van de Ven2006-01-09
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 <arjan@infradead.org> Signed-off-by: Ingo Molnar <mingo@elte.hu>