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x86: fix broken flush_tlb_others_ipi() 

This commit broke flush_tlb_others_ipi() causing boot hangs on a
16 logical cpu system:

>	commit 4595f9620c
>	Author: Rusty Russell <rusty@rustcorp.com.au>
>	Date:   Sat Jan 10 21:58:09 2009 -0800
>
>	    x86: change flush_tlb_others to take a const struct cpumask

This change resulted in sending the invalidate tlb vector to the
sender itself causing the hang. flush_tlb_others_ipi() should exclude
the sender itself from the destination list.

Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Suresh Siddha 2009-01-13 18:43:03 -08:00 committed by Ingo Molnar
parent 28e08861b9
commit a4a0acf8e1
1 changed files with 1 additions and 1 deletions
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2
arch/x86/kernel/tlb_64.c
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@ -188,7 +188,7 @@ static void flush_tlb_others_ipi(const struct cpumask *cpumask,
* We have to send the IPI only to
* CPUs affected.
*/
send_IPI_mask(cpumask, INVALIDATE_TLB_VECTOR_START + sender);
send_IPI_mask(f->flush_cpumask, INVALIDATE_TLB_VECTOR_START + sender);
while (!cpumask_empty(to_cpumask(f->flush_cpumask)))
cpu_relax();