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ocfs2: temporarily disable automatic lock migration 

Now we never change the owner of a lock resource until unmount or node
death. This will be re-enabled once some issues in the algorithm used have
been resolved.

Signed-off-by: Kurt Hackel <kurt.hackel@oracle.com>
Signed-off-by: Mark Fasheh <mark.fasheh@oracle.com>
This commit is contained in:
Kurt Hackel 2006-05-01 13:30:49 -07:00 committed by Mark Fasheh
parent 2abaf97e62
commit c87a9ae705
2 changed files with 23 additions and 5 deletions
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14
fs/ocfs2/dlm/dlmlock.c
View File

@ -227,14 +227,18 @@ 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_NOTQUEUED) {
/*
* DO NOT call calc_usage, as this would unhash
* the remote lockres before we ever get to use
* it. treat as if we never made any change to
* the lockres.
*/
lockres_changed = 0;
dlm_error(status);
}
dlm_revert_pending_lock(res, lock);
dlm_lock_put(lock);
/* do NOT call calc_usage, as this would unhash the remote
* lockres before we ever get to use it. treat as if we
* never made any change to the lockres. */
lockres_changed = 0;
} else if (dlm_is_recovery_lock(res->lockname.name,
res->lockname.len)) {
/* special case for the $RECOVERY lock.

14
fs/ocfs2/dlm/dlmthread.c
View File

@ -106,6 +106,20 @@ void __dlm_lockres_calc_usage(struct dlm_ctxt *dlm,
assert_spin_locked(&res->spinlock);
if (__dlm_lockres_unused(res)){
/* For now, just keep any resource we master */
if (res->owner == dlm->node_num)
{
if (!list_empty(&res->purge)) {
mlog(0, "we master %s:%.*s, but it is on "
"the purge list. Removing\n",
dlm->name, res->lockname.len,
res->lockname.name);
list_del_init(&res->purge);
dlm->purge_count--;
}
return;
}
if (list_empty(&res->purge)) {
mlog(0, "putting lockres %.*s from purge list\n",
res->lockname.len, res->lockname.name);