mirror of https://gitee.com/openkylin/linux.git
[PATCH] x86_64: another mb() for smpboot.c
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:
parent
b556b35e98
commit
f2ecfab91c
|
@ -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;
|
||||
|
|
Loading…
Reference in New Issue