tree abbc303abbccd730b56c35bd021f8ff57e4f5929
parent ef6edc9746dc2bfdacf44eefd5f881179971c478
author Martin Schwidefsky <schwidefsky@de.ibm.com> 1159684064 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159688362 -0700

[PATCH] Directed yield: direct yield of spinlocks for powerpc

Powerpc already has a directed yield for CONFIG_PREEMPT="n".  To make it
work with CONFIG_PREEMPT="y" as well the _raw_{spin,read,write}_relax
primitives need to be defined to call __spin_yield() for spinlocks and
__rw_yield() for rw-locks.

Acked-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>