From: Martin Schwidefsky <schwidefsky@de.ibm.com>
Date: Sun, 1 Oct 2006 06:27:44 +0000 (-0700)
Subject: [PATCH] Directed yield: direct yield of spinlocks for powerpc
X-Git-Tag: v2.6.19-rc1~598
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cdc39363d33506b0e067d41fc91f89d186bdf7f7;p=pandora-kernel.git

[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>
---

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