Commit-ID: f52405757e4e9bddd868d6b8ca501d58f292969f Gitweb: http://git.kernel.org/tip/f52405757e4e9bddd868d6b8ca501d58f292969f Author: Juri Lelli <juri.lelli@xxxxxxx> AuthorDate: Wed, 2 Sep 2015 11:01:35 +0100 Committer: Ingo Molnar <mingo@xxxxxxxxxx> CommitDate: Wed, 23 Sep 2015 09:51:25 +0200 sched/deadline, locking/rtmutex: Fix open coded check in rt_mutex_waiter_less() rt_mutex_waiter_less() check of task deadlines is open coded. Since this is subject to wraparound bugs, make it use the correct helper. Reported-by: Luca Abeni <luca.abeni@xxxxxxxx> Signed-off-by: Juri Lelli <juri.lelli@xxxxxxx> Signed-off-by: Peter Zijlstra (Intel) <peterz@xxxxxxxxxxxxx> Cc: Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx> Cc: Mike Galbraith <efault@xxxxxx> Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> Link: http://lkml.kernel.org/r/1441188096-23021-4-git-send-email-juri.lelli@xxxxxxx Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx> --- kernel/locking/rtmutex.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c index 7781d80..35e9bfc 100644 --- a/kernel/locking/rtmutex.c +++ b/kernel/locking/rtmutex.c @@ -158,7 +158,8 @@ rt_mutex_waiter_less(struct rt_mutex_waiter *left, * then right waiter has a dl_prio() too. */ if (dl_prio(left->prio)) - return (left->task->dl.deadline < right->task->dl.deadline); + return dl_time_before(left->task->dl.deadline, + right->task->dl.deadline); return 0; } -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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