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x86: UV fix uv_flush_send_and_wait()

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Impact: fix possible tlb mis-flushing on UV

uv_flush_send_and_wait() should return a pointer if the broadcast
remote tlb shootdown requests fail. That causes the conventional IPI
method of shootdown to be used.

Signed-off-by: Cliff Wickman <cpw@sgi.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
This commit is contained in:
Cliff Wickman 2009-01-29 15:35:26 -06:00 committed by Tejun Heo
parent 3ac6cffea4
commit 2749ebe320
1 changed files with 1 additions and 1 deletions
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arch/x86/kernel/tlb_uv.c
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@ -259,7 +259,7 @@ const struct cpumask *uv_flush_send_and_wait(int cpu, int this_blade,
* the cpu's, all of which are still in the mask.
*/
__get_cpu_var(ptcstats).ptc_i++;
return 0;
return flush_mask;
}
/*