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ocfs2: wait for recovery when starting lock mastery 

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
wifi-calibration
Kurt Hackel 2006-05-01 13:54:07 -07:00 committed by Mark Fasheh
parent c27069e6cf
commit b7084ab538
3 changed files with 34 additions and 0 deletions
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1
fs/ocfs2/dlm/dlmcommon.h
View File

@ -710,6 +710,7 @@ void dlm_wait_for_recovery(struct dlm_ctxt *dlm);
void dlm_kick_recovery_thread(struct dlm_ctxt *dlm);
int dlm_is_node_dead(struct dlm_ctxt *dlm, u8 node);
int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout);
int dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout);
void dlm_put(struct dlm_ctxt *dlm);
struct dlm_ctxt *dlm_grab(struct dlm_ctxt *dlm);

3
fs/ocfs2/dlm/dlmmaster.c
View File

@ -899,6 +899,9 @@ redo_request:
} else
wait_on_recovery = 0;
spin_unlock(&dlm->spinlock);
if (wait_on_recovery)
dlm_wait_for_node_recovery(dlm, bit, 10000);
}
/* must wait for lock to be mastered elsewhere */

30
fs/ocfs2/dlm/dlmrecovery.c
View File

@ -343,6 +343,18 @@ int dlm_is_node_dead(struct dlm_ctxt *dlm, u8 node)
return dead;
}
/* returns true if node is no longer in the domain
* could be dead or just not joined */
int dlm_is_node_recovered(struct dlm_ctxt *dlm, u8 node)
{
int recovered;
spin_lock(&dlm->spinlock);
recovered = !test_bit(node, dlm->recovery_map);
spin_unlock(&dlm->spinlock);
return recovered;
}
int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout)
{
if (timeout) {
@ -361,6 +373,24 @@ int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout)
return 0;
}
int dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout)
{
if (timeout) {
mlog(0, "%s: waiting %dms for notification of "
"recovery of node %u\n", dlm->name, timeout, node);
wait_event_timeout(dlm->dlm_reco_thread_wq,
dlm_is_node_recovered(dlm, node),
msecs_to_jiffies(timeout));
} else {
mlog(0, "%s: waiting indefinitely for notification "
"of recovery of node %u\n", dlm->name, node);
wait_event(dlm->dlm_reco_thread_wq,
dlm_is_node_recovered(dlm, node));
}
/* for now, return 0 */
return 0;
}
/* callers of the top-level api calls (dlmlock/dlmunlock) should
* block on the dlm->reco.event when recovery is in progress.
* the dlm recovery thread will set this state when it begins