[tip:sched/core] sched/fair: Clean up the __clear_buddies_*() functions

From: tip-bot for Peter Zijlstra
Date: Tue Feb 11 2014 - 07:17:12 EST


Commit-ID: f10447998a59b97747c16258a9c6e6a1512f27f3
Gitweb: http://git.kernel.org/tip/f10447998a59b97747c16258a9c6e6a1512f27f3
Author: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
AuthorDate: Sat, 11 Feb 2012 06:05:00 +0100
Committer: Ingo Molnar <mingo@xxxxxxxxxx>
CommitDate: Mon, 10 Feb 2014 16:17:16 +0100

sched/fair: Clean up the __clear_buddies_*() functions

Slightly easier code flow, no functional changes.

Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
Link: http://lkml.kernel.org/r/1328936700.2476.17.camel@laptop
Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
---
kernel/sched/fair.c | 18 +++++++++---------
1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index c4bb0ac..8461721 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2739,10 +2739,10 @@ static void __clear_buddies_last(struct sched_entity *se)
{
for_each_sched_entity(se) {
struct cfs_rq *cfs_rq = cfs_rq_of(se);
- if (cfs_rq->last == se)
- cfs_rq->last = NULL;
- else
+ if (cfs_rq->last != se)
break;
+
+ cfs_rq->last = NULL;
}
}

@@ -2750,10 +2750,10 @@ static void __clear_buddies_next(struct sched_entity *se)
{
for_each_sched_entity(se) {
struct cfs_rq *cfs_rq = cfs_rq_of(se);
- if (cfs_rq->next == se)
- cfs_rq->next = NULL;
- else
+ if (cfs_rq->next != se)
break;
+
+ cfs_rq->next = NULL;
}
}

@@ -2761,10 +2761,10 @@ static void __clear_buddies_skip(struct sched_entity *se)
{
for_each_sched_entity(se) {
struct cfs_rq *cfs_rq = cfs_rq_of(se);
- if (cfs_rq->skip == se)
- cfs_rq->skip = NULL;
- else
+ if (cfs_rq->skip != se)
break;
+
+ cfs_rq->skip = NULL;
}
}

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