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[PATCH] x86_64: another mb() for smpboot.c

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The following is probably a good idea given that the atomic_set() isn't
a barrier here either.

Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Benjamin LaHaise 2006-01-11 22:43:03 +01:00 committed by Linus Torvalds
parent b556b35e98
commit f2ecfab91c
1 changed files with 1 additions and 0 deletions
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arch/x86_64/kernel/smpboot.c
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@ -646,6 +646,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta
send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY;
} while (send_status && (timeout++ < 1000));
mb();
atomic_set(&init_deasserted, 1);
num_starts = 2;