Re: [PATCH][2.4] smp_call_function needs mb()

From: Zwane Mwaikambo (zwane@linuxpower.ca)
Date: Fri Apr 11 2003 - 09:14:30 EST

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In reply to: Zwane Mwaikambo: "[PATCH][2.4] smp_call_function needs mb()"
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Oops i ended up including the 2.5 patch in the same email. This one should
be fine to pipe through patch.

Index: linux-2.4.20/arch/i386/kernel/smp.c
===================================================================
RCS file: /build/cvsroot/linux-2.4.20/arch/i386/kernel/smp.c,v
retrieving revision 1.2
diff -u -p -B -r1.2 smp.c
--- linux-2.4.20/arch/i386/kernel/smp.c 11 Apr 2003 13:44:11 -0000 1.2
+++ linux-2.4.20/arch/i386/kernel/smp.c 11 Apr 2003 13:44:27 -0000
@@ -563,7 +563,7 @@ int smp_call_function (void (*func) (voi

         spin_lock(&call_lock);
         call_data = &data;
- wmb();
+ mb();
         /* Send a message to all other CPUs and wait for them to respond */
         send_IPI_allbutself(CALL_FUNCTION_VECTOR);

-- 
function.linuxpower.ca
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Next message: James Bottomley: "Re: [patch for playing] Patch to support 4000 disks and maintain backward compatibility"
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In reply to: Zwane Mwaikambo: "[PATCH][2.4] smp_call_function needs mb()"
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