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| author | Peter Zijlstra <peterz@infradead.org> | 2016-05-24 14:45:21 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2016-06-14 11:55:15 +0200 |
| commit | be3e7844980352756de4261b276ee2ba5be7a26b (patch) | |
| tree | 977f32f488649a6c77dcec9190d36fddc3df6b69 /kernel/task_work.c | |
| parent | locking/spinlock, arch: Update and fix spin_unlock_wait() implementations (diff) | |
| download | linux-be3e7844980352756de4261b276ee2ba5be7a26b.tar.xz linux-be3e7844980352756de4261b276ee2ba5be7a26b.zip | |
locking/spinlock: Update spin_unlock_wait() users
With the modified semantics of spin_unlock_wait() a number of
explicit barriers can be removed. Also update the comment for the
do_exit() usecase, as that was somewhat stale/obscure.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'kernel/task_work.c')
| -rw-r--r-- | kernel/task_work.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/kernel/task_work.c b/kernel/task_work.c index 53fa971d000d..6ab4842b00e8 100644 --- a/kernel/task_work.c +++ b/kernel/task_work.c @@ -108,7 +108,6 @@ void task_work_run(void) * fail, but it can play with *work and other entries. */ raw_spin_unlock_wait(&task->pi_lock); - smp_mb(); do { next = work->next; |