From 63cf13b77ab785e87c867defa8545e6d4a989774 Mon Sep 17 00:00:00 2001
From: Jeremy Fitzhardinge <jeremy@goop.org>
Date: Tue, 15 Jul 2008 13:22:49 -0700
Subject: [PATCH] generic ipi function calls: wait on alloc failure fallback
When a GFP_ATOMIC allocation fails, it falls back to allocating the
data on the stack and converting it to a waiting call.
Make sure we actually wait in this case.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
kernel/smp.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/kernel/smp.c b/kernel/smp.c
index ab10793b0707..462c785ca1ee 100644
--- a/kernel/smp.c
+++ b/kernel/smp.c
@@ -312,6 +312,7 @@ int smp_call_function_mask(cpumask_t mask, void (*func)(void *), void *info,
if (!data) {
data = &d;
data->csd.flags = CSD_FLAG_WAIT;
+ wait = 1;
}
spin_lock_init(&data->lock);