Omar Sandoval f66227de59 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>

2017-01-18 13:41:49 -07:00

8.2 KiB

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