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>
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@ -710,6 +710,7 @@ void dlm_wait_for_recovery(struct dlm_ctxt *dlm);
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void dlm_kick_recovery_thread(struct dlm_ctxt *dlm);
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int dlm_is_node_dead(struct dlm_ctxt *dlm, u8 node);
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int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout);
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int dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout);
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void dlm_put(struct dlm_ctxt *dlm);
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struct dlm_ctxt *dlm_grab(struct dlm_ctxt *dlm);
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@ -899,6 +899,9 @@ redo_request:
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} else
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wait_on_recovery = 0;
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spin_unlock(&dlm->spinlock);
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if (wait_on_recovery)
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dlm_wait_for_node_recovery(dlm, bit, 10000);
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}
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/* must wait for lock to be mastered elsewhere */
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@ -343,6 +343,18 @@ int dlm_is_node_dead(struct dlm_ctxt *dlm, u8 node)
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return dead;
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}
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/* returns true if node is no longer in the domain
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* could be dead or just not joined */
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int dlm_is_node_recovered(struct dlm_ctxt *dlm, u8 node)
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{
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int recovered;
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spin_lock(&dlm->spinlock);
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recovered = !test_bit(node, dlm->recovery_map);
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spin_unlock(&dlm->spinlock);
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return recovered;
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}
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int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout)
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{
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if (timeout) {
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@ -361,6 +373,24 @@ int dlm_wait_for_node_death(struct dlm_ctxt *dlm, u8 node, int timeout)
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return 0;
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}
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int dlm_wait_for_node_recovery(struct dlm_ctxt *dlm, u8 node, int timeout)
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{
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if (timeout) {
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mlog(0, "%s: waiting %dms for notification of "
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"recovery of node %u\n", dlm->name, timeout, node);
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wait_event_timeout(dlm->dlm_reco_thread_wq,
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dlm_is_node_recovered(dlm, node),
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msecs_to_jiffies(timeout));
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} else {
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mlog(0, "%s: waiting indefinitely for notification "
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"of recovery of node %u\n", dlm->name, node);
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wait_event(dlm->dlm_reco_thread_wq,
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dlm_is_node_recovered(dlm, node));
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}
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/* for now, return 0 */
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return 0;
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}
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/* callers of the top-level api calls (dlmlock/dlmunlock) should
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* block on the dlm->reco.event when recovery is in progress.
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* the dlm recovery thread will set this state when it begins
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