Mikulas Patocka ae1093be5a dm snapshot: use mutex instead of rw_semaphore ...

The rw_semaphore is acquired for read only in two places, neither is
performance-critical.  So replace it with a mutex -- which is more
efficient.

Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>

2018-01-17 09:16:14 -05:00

58 KiB

Raw Blame History

View Raw