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| author |   Nick Piggin <npiggin@suse.de> | 2008-11-11 17:54:15 +0000 |
|---|---|---|
| committer |   Paul Mackerras <paulus@samba.org> | 2008-11-19 16:04:58 +1100 |
| commit | ae564c63b8311fa73c21e456e00dba1f4b1ff6bc (patch) | |
| tree | 743ed995f8718d465c8008a61755ea47feb73f6e /include/linux/of.h | |
| parent | powerpc: Optimise smp_rmb (diff) | |
| download | linux-dev-ae564c63b8311fa73c21e456e00dba1f4b1ff6bc.tar.xz linux-dev-ae564c63b8311fa73c21e456e00dba1f4b1ff6bc.zip | |
powerpc: Optimise mutex
This implements an optimised mutex fastpath for powerpc, making use of
acquire and release barrier semantics. This takes the mutex
lock+unlock benchmark from 203 to 173 cycles on a G5.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'include/linux/of.h')
0 files changed, 0 insertions, 0 deletions