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| author | Omar Sandoval <osandov@fb.com> | 2017-01-18 11:55:21 -0800 |
|---|---|---|
| committer | Jens Axboe <axboe@fb.com> | 2017-01-18 13:41:49 -0700 |
| commit | f66227de5924ed0fde1823f5cbc4d8b8f45faaa2 (patch) | |
| tree | 0de01e70f6d96b76b1b38e66a0b4bef2231b9634 /tools/perf/scripts/python/stackcollapse.py | |
| parent | blk-cgroup: ensure that we clear the stop bit on quiesced queues (diff) | |
| download | linux-f66227de5924ed0fde1823f5cbc4d8b8f45faaa2.tar.gz linux-f66227de5924ed0fde1823f5cbc4d8b8f45faaa2.zip | |
sbitmap: use smp_mb__after_atomic() in sbq_wake_up()
We always do an atomic clear_bit() right before we call sbq_wake_up(),
so we can use smp_mb__after_atomic(). While we're here, comment the
memory barriers in here a little more.
Signed-off-by: Omar Sandoval <osandov@fb.com>
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
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