[DLM] fix leaking user locks
User NOQUEUE lock requests to a remote node that failed with -EAGAIN were
never being removed from a process's list of locks.
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Steven Whitehouse <swhiteho@redhat.com>
diff --git a/fs/dlm/lock.c b/fs/dlm/lock.c
index 82e1ac2..2274432 100644
--- a/fs/dlm/lock.c
+++ b/fs/dlm/lock.c
@@ -526,6 +526,7 @@
lkb->lkb_nodeid = -1;
lkb->lkb_grmode = DLM_LOCK_IV;
kref_init(&lkb->lkb_ref);
+ INIT_LIST_HEAD(&lkb->lkb_ownqueue);
get_random_bytes(&bucket, sizeof(bucket));
bucket &= (ls->ls_lkbtbl_size - 1);
@@ -3705,7 +3706,7 @@
goto out_put;
spin_lock(&ua->proc->locks_spin);
- list_del(&lkb->lkb_ownqueue);
+ list_del_init(&lkb->lkb_ownqueue);
spin_unlock(&ua->proc->locks_spin);
/* this removes the reference for the proc->locks list added by
@@ -3749,7 +3750,7 @@
/* this lkb was removed from the WAITING queue */
if (lkb->lkb_grmode == DLM_LOCK_IV) {
spin_lock(&ua->proc->locks_spin);
- list_del(&lkb->lkb_ownqueue);
+ list_del_init(&lkb->lkb_ownqueue);
spin_unlock(&ua->proc->locks_spin);
unhold_lkb(lkb);
}
@@ -3817,7 +3818,7 @@
unhold_lkb(lkb);
}
- list_del(&lkb->lkb_ownqueue);
+ list_del_init(&lkb->lkb_ownqueue);
if (lkb->lkb_exflags & DLM_LKF_PERSISTENT) {
lkb->lkb_flags |= DLM_IFL_ORPHAN;