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Commit d243769d authored by Hugh Dickins's avatar Hugh Dickins Committed by Linus Torvalds
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fix bogus hotplug cpu warning 



Fix bogus DEBUG_PREEMPT warning on x86_64, when cpu brought online after
bootup: current_is_keventd is right to note its use of smp_processor_id
is preempt-safe, but should use raw_smp_processor_id to avoid the warning.

Signed-off-by: default avatarHugh Dickins <hugh@veritas.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
parent 721ebe00

kernel/workqueue.c

+1 −1
Original line number Diff line number Diff line
@@ -635,7 +635,7 @@ int keventd_up(void) 
int current_is_keventd(void)

{

	struct cpu_workqueue_struct *cwq;

	int cpu = smp_processor_id();	/* preempt-safe: keventd is per-cpu */

	int cpu = raw_smp_processor_id(); /* preempt-safe: keventd is per-cpu */

	int ret = 0;



	BUG_ON(!keventd_wq);