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authorLinus Torvalds <torvalds@linux-foundation.org>2008-11-11 10:52:25 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2008-11-11 10:52:25 -0800
commit2f96cb57cde9957bac0991c712068d29364b2ac9 (patch)
tree60e3f985b9e865f3a1fdda131599fa84159cc73e /kernel/sched.c
parent09eb3b5b1bcab7b25e9dd57e90ee9753adf7afe2 (diff)
parent2002c69595a092518107f7e3c1294c9710bc92ae (diff)
downloadtalos-op-linux-2f96cb57cde9957bac0991c712068d29364b2ac9.tar.gz
talos-op-linux-2f96cb57cde9957bac0991c712068d29364b2ac9.zip
Merge branch 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: sched: release buddies on yield fix for account_group_exec_runtime(), make sure ->signal can't be freed under rq->lock sched: clean up debug info
Diffstat (limited to 'kernel/sched.c')
-rw-r--r--kernel/sched.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/kernel/sched.c b/kernel/sched.c
index 57c933ffbee1..50a21f964679 100644
--- a/kernel/sched.c
+++ b/kernel/sched.c
@@ -399,7 +399,7 @@ struct cfs_rq {
*/
struct sched_entity *curr, *next, *last;
- unsigned long nr_spread_over;
+ unsigned int nr_spread_over;
#ifdef CONFIG_FAIR_GROUP_SCHED
struct rq *rq; /* cpu runqueue to which this cfs_rq is attached */
@@ -969,6 +969,14 @@ static struct rq *task_rq_lock(struct task_struct *p, unsigned long *flags)
}
}
+void task_rq_unlock_wait(struct task_struct *p)
+{
+ struct rq *rq = task_rq(p);
+
+ smp_mb(); /* spin-unlock-wait is not a full memory barrier */
+ spin_unlock_wait(&rq->lock);
+}
+
static void __task_rq_unlock(struct rq *rq)
__releases(rq->lock)
{
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