From: Nick Piggin <npiggin@suse.de>
Date: Tue, 11 Nov 2008 17:50:48 +0000 (+0000)
Subject: powerpc: Optimise smp_wmb
X-Git-Tag: v2.6.29-rc1~574^2~116
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=46d075be585eae2b74265e4e64ca38dde16a09c6;p=pandora-kernel.git

powerpc: Optimise smp_wmb

Change 2d1b2027626d5151fff8ef7c06ca8e7876a1a510 ("powerpc: Fixup
lwsync at runtime") removed __SUBARCH_HAS_LWSYNC, causing smp_wmb to
revert back to eieio for all CPUs.  This restores the behaviour
intorduced in 74f0609526afddd88bef40b651da24f3167b10b2 ("powerpc:
Optimise smp_wmb on 64-bit processors").

Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---

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