diff options
| author | Alexander Aring <aahringo@redhat.com> | 2021-11-02 22:17:17 +0300 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2021-11-02 22:39:20 +0300 |
| commit | 164d88abd7608e869b7617d5ff8893344fdda759 (patch) | |
| tree | f8175515fd4c243b8b55faf578eefc5906968e7c /fs/dlm/lockspace.c | |
| parent | 92732376fd29462b502f41486bcef55f49c5713e (diff) | |
| download | linux-164d88abd7608e869b7617d5ff8893344fdda759.tar.xz | |
fs: dlm: requestqueue busy wait to event based wait
This patch changes the requestqueue busy waiting algorithm to use
atomic counter values and wait_event() to wait until the requestqueue is
empty. It will slightly reduce the number of holding ls_requestqueue_mutex
mutex.
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/lockspace.c')
| -rw-r--r-- | fs/dlm/lockspace.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/dlm/lockspace.c b/fs/dlm/lockspace.c index b90566502a81..4e4181304ca1 100644 --- a/fs/dlm/lockspace.c +++ b/fs/dlm/lockspace.c @@ -564,6 +564,8 @@ static int new_lockspace(const char *name, const char *cluster, init_rwsem(&ls->ls_in_recovery); init_rwsem(&ls->ls_recv_active); INIT_LIST_HEAD(&ls->ls_requestqueue); + atomic_set(&ls->ls_requestqueue_cnt, 0); + init_waitqueue_head(&ls->ls_requestqueue_wait); mutex_init(&ls->ls_requestqueue_mutex); mutex_init(&ls->ls_clear_proc_locks); |