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authorDavid Teigland <teigland@redhat.com>2012-06-05 11:23:21 -0500
committerDavid Teigland <teigland@redhat.com>2012-07-16 14:18:12 -0500
commit6d768177c282637a7943e72b4b2b148e7553ecf1 (patch)
treeba850e74687aa03dce4f20cc9649c1d34ea9d959 /fs/dlm/recover.c
parent05c32f47bfae74dabff05208957768078b53cc49 (diff)
dlm: use wait_event_timeout
Use wait_event_timeout to avoid using a timer directly. Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/dlm/recover.c')
-rw-r--r--fs/dlm/recover.c29
1 files changed, 11 insertions, 18 deletions
diff --git a/fs/dlm/recover.c b/fs/dlm/recover.c
index ff6f27629a0..12702cc533b 100644
--- a/fs/dlm/recover.c
+++ b/fs/dlm/recover.c
@@ -36,30 +36,23 @@
* (LS_RECOVERY_STOP set due to failure of a node in ls_nodes). When another
* function thinks it could have completed the waited-on task, they should wake
* up ls_wait_general to get an immediate response rather than waiting for the
- * timer to detect the result. A timer wakes us up periodically while waiting
- * to see if we should abort due to a node failure. This should only be called
- * by the dlm_recoverd thread.
+ * timeout. This uses a timeout so it can check periodically if the wait
+ * should abort due to node failure (which doesn't cause a wake_up).
+ * This should only be called by the dlm_recoverd thread.
*/
-static void dlm_wait_timer_fn(unsigned long data)
-{
- struct dlm_ls *ls = (struct dlm_ls *) data;
- mod_timer(&ls->ls_timer, jiffies + (dlm_config.ci_recover_timer * HZ));
- wake_up(&ls->ls_wait_general);
-}
-
int dlm_wait_function(struct dlm_ls *ls, int (*testfn) (struct dlm_ls *ls))
{
int error = 0;
+ int rv;
- init_timer(&ls->ls_timer);
- ls->ls_timer.function = dlm_wait_timer_fn;
- ls->ls_timer.data = (long) ls;
- ls->ls_timer.expires = jiffies + (dlm_config.ci_recover_timer * HZ);
- add_timer(&ls->ls_timer);
-
- wait_event(ls->ls_wait_general, testfn(ls) || dlm_recovery_stopped(ls));
- del_timer_sync(&ls->ls_timer);
+ while (1) {
+ rv = wait_event_timeout(ls->ls_wait_general,
+ testfn(ls) || dlm_recovery_stopped(ls),
+ dlm_config.ci_recover_timer * HZ);
+ if (rv)
+ break;
+ }
if (dlm_recovery_stopped(ls)) {
log_debug(ls, "dlm_wait_function aborted");