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generic ipi function calls: wait on alloc failure fallback
author
Jeremy Fitzhardinge
<jeremy@goop.org>
Tue, 15 Jul 2008 20:22:49 +0000
(13:22 -0700)
committer
Linus Torvalds
<torvalds@linux-foundation.org>
Tue, 15 Jul 2008 21:12:20 +0000
(14:12 -0700)
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
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diff --git
a/kernel/smp.c
b/kernel/smp.c
index ab10793b0707d6ced7f0d4fe91328200d747bbfd..462c785ca1eee80dea958541edf19786259c88e6 100644
(file)
--- 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);