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Commit 63cf13b7 authored by Jeremy Fitzhardinge's avatar Jeremy Fitzhardinge Committed by Linus Torvalds
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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: default avatarJeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 59190f42

kernel/smp.c

+1 −0
Original line number Diff line number Diff line
@@ -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);