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powerpc: Optimise smp_wmb
authorNick Piggin <npiggin@suse.de>
Tue, 11 Nov 2008 17:50:48 +0000 (17:50 +0000)
committerPaul Mackerras <paulus@samba.org>
Wed, 19 Nov 2008 05:04:55 +0000 (16:04 +1100)
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>

No differences found
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