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| author | Paul Mundt <lethal@linux-sh.org> | 2009-12-10 15:40:31 +0900 |
|---|---|---|
| committer | Paul Mundt <lethal@linux-sh.org> | 2009-12-10 15:40:31 +0900 |
| commit | b5c00a3a412857d6f07970984068c450429e051c (patch) | |
| tree | 1fde50630cbc24e11a45169f717f281db8eb6dcc /include/linux/preempt.h | |
| parent | ca6f2d7fafd2d48b2f6943f5c6787beaec2014d0 (diff) | |
| parent | 3067e02f8f3ae2f3f02ba76400d03b8bcb4942b0 (diff) | |
| download | kernel-crypto-b5c00a3a412857d6f07970984068c450429e051c.tar.gz kernel-crypto-b5c00a3a412857d6f07970984068c450429e051c.tar.xz kernel-crypto-b5c00a3a412857d6f07970984068c450429e051c.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 into sh/for-2.6.33
Diffstat (limited to 'include/linux/preempt.h')
| -rw-r--r-- | include/linux/preempt.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/linux/preempt.h b/include/linux/preempt.h index 72b1a10a59b..2e681d9555b 100644 --- a/include/linux/preempt.h +++ b/include/linux/preempt.h @@ -105,6 +105,11 @@ struct preempt_notifier; * @sched_out: we've just been preempted * notifier: struct preempt_notifier for the task being preempted * next: the task that's kicking us out + * + * Please note that sched_in and out are called under different + * contexts. sched_out is called with rq lock held and irq disabled + * while sched_in is called without rq lock and irq enabled. This + * difference is intentional and depended upon by its users. */ struct preempt_ops { void (*sched_in)(struct preempt_notifier *notifier, int cpu); |