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| author | Peter Zijlstra <peterz@infradead.org> | 2017-03-23 15:56:10 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-04-04 11:44:05 +0200 |
| commit | aa2bfe55366552cb7e93e8709d66e698d79ccc47 (patch) | |
| tree | c88ac6fbcf4a8ef48d40a1d9e40ff40ffeab0758 /kernel/futex.c | |
| parent | sched/deadline/rtmutex: Dont miss the dl_runtime/dl_period update (diff) | |
| download | linux-aa2bfe55366552cb7e93e8709d66e698d79ccc47.tar.xz linux-aa2bfe55366552cb7e93e8709d66e698d79ccc47.zip | |
rtmutex: Clean up
Previous patches changed the meaning of the return value of
rt_mutex_slowunlock(); update comments and code to reflect this.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: juri.lelli@arm.com
Cc: bigeasy@linutronix.de
Cc: xlpang@redhat.com
Cc: rostedt@goodmis.org
Cc: mathieu.desnoyers@efficios.com
Cc: jdesfossez@efficios.com
Cc: bristot@redhat.com
Link: http://lkml.kernel.org/r/20170323150216.255058238@infradead.org
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'kernel/futex.c')
| -rw-r--r-- | kernel/futex.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/kernel/futex.c b/kernel/futex.c index 414a30dbc6b6..c3eebcdac206 100644 --- a/kernel/futex.c +++ b/kernel/futex.c @@ -1394,7 +1394,7 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_pi_state *pi_ { u32 uninitialized_var(curval), newval; struct task_struct *new_owner; - bool deboost = false; + bool postunlock = false; DEFINE_WAKE_Q(wake_q); int ret = 0; @@ -1455,12 +1455,13 @@ static int wake_futex_pi(u32 __user *uaddr, u32 uval, struct futex_pi_state *pi_ /* * We've updated the uservalue, this unlock cannot fail. */ - deboost = __rt_mutex_futex_unlock(&pi_state->pi_mutex, &wake_q); + postunlock = __rt_mutex_futex_unlock(&pi_state->pi_mutex, &wake_q); out_unlock: raw_spin_unlock_irq(&pi_state->pi_mutex.wait_lock); - rt_mutex_postunlock(&wake_q, deboost); + if (postunlock) + rt_mutex_postunlock(&wake_q); return ret; } |