diff options
| author | Alexander Aring <aahringo@redhat.com> | 2021-11-02 15:17:17 -0400 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2021-11-02 14:39:20 -0500 |
| commit | 164d88abd7608e869b7617d5ff8893344fdda759 (patch) | |
| tree | f8175515fd4c243b8b55faf578eefc5906968e7c /fs/dlm/dlm_internal.h | |
| parent | 92732376fd29462b502f41486bcef55f49c5713e (diff) | |
| download | linux-164d88abd7608e869b7617d5ff8893344fdda759.tar.gz | |
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/dlm_internal.h')
| -rw-r--r-- | fs/dlm/dlm_internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/fs/dlm/dlm_internal.h b/fs/dlm/dlm_internal.h index 44a5c67b52134..fd1c7a8c44855 100644 --- a/fs/dlm/dlm_internal.h +++ b/fs/dlm/dlm_internal.h @@ -626,6 +626,8 @@ struct dlm_ls { struct rw_semaphore ls_in_recovery; /* block local requests */ struct rw_semaphore ls_recv_active; /* block dlm_recv */ struct list_head ls_requestqueue;/* queue remote requests */ + atomic_t ls_requestqueue_cnt; + wait_queue_head_t ls_requestqueue_wait; struct mutex ls_requestqueue_mutex; struct dlm_rcom *ls_recover_buf; int ls_recover_nodeid; /* for debugging */ |