commit d243769d3f83b318813a04a9592bb7cfedc6c280
author Hugh Dickins <hugh@veritas.com> Mon Aug 27 16:06:19 2007 +0100
committer Linus Torvalds <torvalds@woody.linux-foundation.org> Mon Aug 27 10:27:48 2007 -0700
tree 4f288332b6b20f414b452219b1ea5ff4cc41eaa5
parent 721ebe005c3bb9add55b2e462dfc1bcf8efc6b8f

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: Hugh Dickins <hugh@veritas.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

kernel/workqueue.c

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index 58e5c15..e080d1d 100644
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -635,7 +635,7 @@
 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);