From c8df412e1c746dd21094966d04b3a79aad0f4d08 Mon Sep 17 00:00:00 2001 From: Kurt Hackel Date: Mon, 1 May 2006 13:47:50 -0700 Subject: ocfs2: special case recovery lock in dlmlock_remote() If the previous master of the recovery lock dies, let calc_usage take it down completely and let the caller completely redo the dlmlock() call. Otherwise, there will never be an opportunity to re-master the lockres and recovery wont be able to progress. Signed-off-by: Kurt Hackel Signed-off-by: Mark Fasheh --- fs/ocfs2/dlm/dlmlock.c | 33 +++++++++++++++++++++++---------- fs/ocfs2/dlm/dlmrecovery.c | 4 ++++ 2 files changed, 27 insertions(+), 10 deletions(-) (limited to 'fs/ocfs2/dlm') diff --git a/fs/ocfs2/dlm/dlmlock.c b/fs/ocfs2/dlm/dlmlock.c index 0ff93487494..20b38dc1873 100644 --- a/fs/ocfs2/dlm/dlmlock.c +++ b/fs/ocfs2/dlm/dlmlock.c @@ -227,7 +227,16 @@ static enum dlm_status dlmlock_remote(struct dlm_ctxt *dlm, res->state &= ~DLM_LOCK_RES_IN_PROGRESS; lock->lock_pending = 0; if (status != DLM_NORMAL) { - if (status != DLM_NOTQUEUED) { + if (status == DLM_RECOVERING && + dlm_is_recovery_lock(res->lockname.name, + res->lockname.len)) { + /* recovery lock was mastered by dead node. + * we need to have calc_usage shoot down this + * lockres and completely remaster it. */ + mlog(0, "%s: recovery lock was owned by " + "dead node %u, remaster it now.\n", + dlm->name, res->owner); + } else if (status != DLM_NOTQUEUED) { /* * DO NOT call calc_usage, as this would unhash * the remote lockres before we ever get to use @@ -691,18 +700,22 @@ retry_lock: msleep(100); /* no waiting for dlm_reco_thread */ if (recovery) { - if (status == DLM_RECOVERING) { - mlog(0, "%s: got RECOVERING " - "for $REOCVERY lock, master " - "was %u\n", dlm->name, - res->owner); - dlm_wait_for_node_death(dlm, res->owner, - DLM_NODE_DEATH_WAIT_MAX); - } + if (status != DLM_RECOVERING) + goto retry_lock; + + mlog(0, "%s: got RECOVERING " + "for $RECOVERY lock, master " + "was %u\n", dlm->name, + res->owner); + /* wait to see the node go down, then + * drop down and allow the lockres to + * get cleaned up. need to remaster. */ + dlm_wait_for_node_death(dlm, res->owner, + DLM_NODE_DEATH_WAIT_MAX); } else { dlm_wait_for_recovery(dlm); + goto retry_lock; } - goto retry_lock; } if (status != DLM_NORMAL) { diff --git a/fs/ocfs2/dlm/dlmrecovery.c b/fs/ocfs2/dlm/dlmrecovery.c index 86199f66eb5..00209f4a291 100644 --- a/fs/ocfs2/dlm/dlmrecovery.c +++ b/fs/ocfs2/dlm/dlmrecovery.c @@ -2314,6 +2314,10 @@ again: mlog(0, "%s: reco master %u is ready to recover %u\n", dlm->name, dlm->reco.new_master, dlm->reco.dead_node); status = -EEXIST; + } else if (ret == DLM_RECOVERING) { + mlog(0, "dlm=%s dlmlock says master node died (this=%u)\n", + dlm->name, dlm->node_num); + goto again; } else { struct dlm_lock_resource *res; -- cgit v1.2.3