path: root/fs/gfs2/lock_dlm.c
diff options
authorDavid Teigland <teigland@redhat.com>2012-04-26 15:54:29 -0500
committerDavid Teigland <teigland@redhat.com>2012-05-02 14:15:27 -0500
commit4875647a08e35f77274838d97ca8fa44158d50e2 (patch)
treebf8a39eaf3219af5d661ed3e347545306fd84bda /fs/gfs2/lock_dlm.c
parent6d40c4a708e0e996fd9c60d4093aebba5fe1f749 (diff)
dlm: fixes for nodir mode
The "nodir" mode (statically assign master nodes instead of using the resource directory) has always been highly experimental, and never seriously used. This commit fixes a number of problems, making nodir much more usable. - Major change to recovery: recover all locks and restart all in-progress operations after recovery. In some cases it's not possible to know which in-progess locks to recover, so recover all. (Most require recovery in nodir mode anyway since rehashing changes most master nodes.) - Change the way nodir mode is enabled, from a command line mount arg passed through gfs2, into a sysfs file managed by dlm_controld, consistent with the other config settings. - Allow recovering MSTCPY locks on an rsb that has not yet been turned into a master copy. - Ignore RCOM_LOCK and RCOM_LOCK_REPLY recovery messages from a previous, aborted recovery cycle. Base this on the local recovery status not being in the state where any nodes should be sending LOCK messages for the current recovery cycle. - Hold rsb lock around dlm_purge_mstcpy_locks() because it may run concurrently with dlm_recover_master_copy(). - Maintain highbast on process-copy lkb's (in addition to the master as is usual), because the lkb can switch back and forth between being a master and being a process copy as the master node changes in recovery. - When recovering MSTCPY locks, flag rsb's that have non-empty convert or waiting queues for granting at the end of recovery. (Rename flag from LOCKS_PURGED to RECOVER_GRANT and similar for the recovery function, because it's not only resources with purged locks that need grant a grant attempt.) - Replace a couple of unnecessary assertion panics with error messages. Signed-off-by: David Teigland <teigland@redhat.com>
Diffstat (limited to 'fs/gfs2/lock_dlm.c')
1 files changed, 0 insertions, 2 deletions
diff --git a/fs/gfs2/lock_dlm.c b/fs/gfs2/lock_dlm.c
index 5f5e70e047d..4a38db739ca 100644
--- a/fs/gfs2/lock_dlm.c
+++ b/fs/gfs2/lock_dlm.c
@@ -1209,8 +1209,6 @@ static int gdlm_mount(struct gfs2_sbd *sdp, const char *table)
- if (ls->ls_nodir)
- flags |= DLM_LSFL_NODIR;
* create/join lockspace