diff options
| author | Ingo Molnar <mingo@kernel.org> | 2016-12-11 13:10:40 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-12-11 13:10:40 +0100 |
| commit | 6643aab30f88e2929bcc401a9ae39bf6f1c0b61d (patch) | |
| tree | 72c43e9d7287aef9b8d9699491038edc1929f1f2 /kernel/locking/rtmutex_common.h | |
| parent | 8fb9dcbdc3619741c10c573199d804161c34c89a (diff) | |
| parent | 045169816b31b10faed984b01c390db1b32ee4c1 (diff) | |
Merge branch 'linus' into sched/core, to pick up fixes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/locking/rtmutex_common.h')
| -rw-r--r-- | kernel/locking/rtmutex_common.h | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h index 4f5f83c7d2d3..e317e1cbb3eb 100644 --- a/kernel/locking/rtmutex_common.h +++ b/kernel/locking/rtmutex_common.h @@ -75,8 +75,9 @@ task_top_pi_waiter(struct task_struct *p) static inline struct task_struct *rt_mutex_owner(struct rt_mutex *lock) { - return (struct task_struct *) - ((unsigned long)lock->owner & ~RT_MUTEX_OWNER_MASKALL); + unsigned long owner = (unsigned long) READ_ONCE(lock->owner); + + return (struct task_struct *) (owner & ~RT_MUTEX_OWNER_MASKALL); } /* |