x86: UV fix uv_flush_send_and_wait()

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>
16 years ago · 2749ebe320
parent 3ac6cffea4
commit 2749ebe320
1 changed files with 1 additions and 1 deletions
--- a/arch/x86/kernel/tlb_uv.c
+++ b/arch/x86/kernel/tlb_uv.c
@ -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;
 	}

 	/*