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| author | Juri Lelli <juri.lelli@gmail.com> | 2014-02-24 14:47:12 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2014-02-27 15:29:40 +0400 |
| commit | eec751ed41a0ae7e92a43c33a458d7bd1b941631 (patch) | |
| tree | 2059fbdbd5a842df6450bca66f4f4ea2851cfbc1 /kernel/sched | |
| parent | 3908ac13b550c93f97d8db136ff572be5495bc06 (diff) | |
| download | linux-eec751ed41a0ae7e92a43c33a458d7bd1b941631.tar.xz | |
sched/deadline: Switch CPU's presence test order
Commit 82b9580 ("sched/deadline: Test for CPU's presence explicitly")
changed how we check if a CPU returned by cpudeadline machinery is
valid. But, we don't want to call cpu_present() if best_cpu is
equal to -1. So, switch the order of tests inside WARN_ON().
Signed-off-by: Juri Lelli <juri.lelli@gmail.com>
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: boris.ostrovsky@oracle.com
Cc: konrad.wilk@oracle.com
Cc: rostedt@goodmis.org
Link: http://lkml.kernel.org/r/1393238832-9100-1-git-send-email-juri.lelli@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/cpudeadline.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/kernel/sched/cpudeadline.c b/kernel/sched/cpudeadline.c index 5b8838b56d1c..5b9bb42b2d47 100644 --- a/kernel/sched/cpudeadline.c +++ b/kernel/sched/cpudeadline.c @@ -70,7 +70,7 @@ static void cpudl_heapify(struct cpudl *cp, int idx) static void cpudl_change_key(struct cpudl *cp, int idx, u64 new_dl) { - WARN_ON(!cpu_present(idx) || idx == IDX_INVALID); + WARN_ON(idx == IDX_INVALID || !cpu_present(idx)); if (dl_time_before(new_dl, cp->elements[idx].dl)) { cp->elements[idx].dl = new_dl; @@ -117,7 +117,7 @@ int cpudl_find(struct cpudl *cp, struct task_struct *p, } out: - WARN_ON(!cpu_present(best_cpu) && best_cpu != -1); + WARN_ON(best_cpu != -1 && !cpu_present(best_cpu)); return best_cpu; } |