Commit-ID: f52405757e4e9bddd868d6b8ca501d58f292969f Gitweb: http://git.kernel.org/tip/f52405757e4e9bddd868d6b8ca501d58f292969f Author: Juri Lelli <juri.le...@arm.com> AuthorDate: Wed, 2 Sep 2015 11:01:35 +0100 Committer: Ingo Molnar <mi...@kernel.org> 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.ab...@unitn.it> Signed-off-by: Juri Lelli <juri.le...@arm.com> Signed-off-by: Peter Zijlstra (Intel) <pet...@infradead.org> Cc: Linus Torvalds <torva...@linux-foundation.org> Cc: Mike Galbraith <efa...@gmx.de> Cc: Peter Zijlstra <pet...@infradead.org> Cc: Thomas Gleixner <t...@linutronix.de> Link: http://lkml.kernel.org/r/1441188096-23021-4-git-send-email-juri.le...@arm.com Signed-off-by: Ingo Molnar <mi...@kernel.org> --- 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-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
