tree 04dc336330a587a11ae3870d201225f43b3cb012
parent 518257b13276d07a19e6ae0608b8e5ee73383ce4
author Mike Snitzer <snitzer@redhat.com> 1458249015 -0400
committer Mike Snitzer <snitzer@redhat.com> 1462476351 -0400

dm mpath: use atomic_t for counting members of 'struct multipath'

The use of atomic_t for nr_valid_paths, pg_init_in_progress and
pg_init_count will allow relaxing the use of the m->lock spinlock.

Suggested-by: Hannes Reinecke <hare@suse.de>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Tested-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>