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authorIngo Molnar <mingo@elte.hu>2008-01-25 21:08:15 +0100
committerIngo Molnar <mingo@elte.hu>2008-01-25 21:08:15 +0100
commit4df64c0bfb7e0e260d10ebc005f7d0ba1308eed7 (patch)
tree51ffd9e80f38e6c918e57f33373ac400bd403c53 /kernel/sched_rt.c
parent79064fbf75796c4c6a53e40729dbe52f789a91fd (diff)
downloadlinux-4df64c0bfb7e0e260d10ebc005f7d0ba1308eed7.tar.bz2
sched: clean up find_lock_lowest_rq()
clean up find_lock_lowest_rq(). Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel/sched_rt.c')
-rw-r--r--kernel/sched_rt.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index b8435fd47f78..0749c1837b10 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -438,12 +438,11 @@ static int find_lowest_rq(struct task_struct *task)
}
/* Will lock the rq it finds */
-static struct rq *find_lock_lowest_rq(struct task_struct *task,
- struct rq *rq)
+static struct rq *find_lock_lowest_rq(struct task_struct *task, struct rq *rq)
{
struct rq *lowest_rq = NULL;
- int cpu;
int tries;
+ int cpu;
for (tries = 0; tries < RT_MAX_TRIES; tries++) {
cpu = find_lowest_rq(task);
@@ -462,9 +461,11 @@ static struct rq *find_lock_lowest_rq(struct task_struct *task,
* Also make sure that it wasn't scheduled on its rq.
*/
if (unlikely(task_rq(task) != rq ||
- !cpu_isset(lowest_rq->cpu, task->cpus_allowed) ||
+ !cpu_isset(lowest_rq->cpu,
+ task->cpus_allowed) ||
task_running(rq, task) ||
!task->se.on_rq)) {
+
spin_unlock(&lowest_rq->lock);
lowest_rq = NULL;
break;