From: Nick Piggin <npiggin@suse.de>
To: paulus@samba.org, benh@kernel.crashing.org,
Anton Blanchard <anton@samba.org>,
linuxppc-dev@ozlabs.org
Subject: [patch] powerpc: smp_wmb lwsync optimisation fix
Date: Sat, 1 Nov 2008 13:33:39 +0100 [thread overview]
Message-ID: <20081101123339.GA32055@wotan.suse.de> (raw)
A previous change removed __SUBARCH_HAS_LWSYNC define, and replaced it
with __powerpc64__. smp_wmb() seems to be the last place not updated.
Signed-off-by: Nick Piggin <npiggin@suse.de>
---
Index: linux-2.6/arch/powerpc/include/asm/system.h
===================================================================
--- linux-2.6.orig/arch/powerpc/include/asm/system.h 2008-11-01 20:31:51.000000000 +1100
+++ linux-2.6/arch/powerpc/include/asm/system.h 2008-11-01 20:32:33.000000000 +1100
@@ -44,7 +44,7 @@
#define AT_VECTOR_SIZE_ARCH 6 /* entries in ARCH_DLINFO */
#ifdef CONFIG_SMP
-#ifdef __SUBARCH_HAS_LWSYNC
+#if defined(__powerpc64__)
# define SMPWMB lwsync
#else
# define SMPWMB eieio
next reply other threads:[~2008-11-01 12:33 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-11-01 12:33 Nick Piggin [this message]
2008-11-01 13:05 ` [patch] powerpc: rmp_wmb lwsync optimisation Nick Piggin
2008-11-01 13:07 ` [rfc][patch] powerpc: replace isync with lwsync Nick Piggin
2008-11-03 5:32 ` Paul Mackerras
2008-11-03 8:31 ` Nick Piggin
2008-11-01 16:47 ` [patch] powerpc: smp_wmb lwsync optimisation fix Kumar Gala
2008-11-02 1:42 ` Nick Piggin
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