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authorMarcel Ziswiler <marcel.ziswiler@toradex.com>2020-05-21 00:54:36 +0200
committerMarcel Ziswiler <marcel.ziswiler@toradex.com>2020-05-21 00:54:36 +0200
commit135d39dcedcedd1f44ea0bba52f15ac5922c114f (patch)
tree12379fc8ef7489eaca1c7245f8bd6af74c619a8f /fs/ocfs2/dlm/dlmunlock.c
parent187764bd111b27783b6d68ffb3b3dbb3a9bafd38 (diff)
parent1279cd128bba968ebe0a2df7f7ae38bae90250ef (diff)
Merge remote-tracking branch 'remotes/fslc/4.9-2.3.x-imx' into toradex_4.9-2.3.x-imx-next
Conflicts: sound/soc/codecs/sgtl5000.c sound/soc/fsl/imx-sgtl5000.c
Diffstat (limited to 'fs/ocfs2/dlm/dlmunlock.c')
-rw-r--r--fs/ocfs2/dlm/dlmunlock.c23
1 files changed, 19 insertions, 4 deletions
diff --git a/fs/ocfs2/dlm/dlmunlock.c b/fs/ocfs2/dlm/dlmunlock.c
index 1082b2c3014b..5f2a120240e5 100644
--- a/fs/ocfs2/dlm/dlmunlock.c
+++ b/fs/ocfs2/dlm/dlmunlock.c
@@ -105,7 +105,8 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm,
enum dlm_status status;
int actions = 0;
int in_use;
- u8 owner;
+ u8 owner;
+ int recovery_wait = 0;
mlog(0, "master_node = %d, valblk = %d\n", master_node,
flags & LKM_VALBLK);
@@ -208,9 +209,12 @@ static enum dlm_status dlmunlock_common(struct dlm_ctxt *dlm,
}
if (flags & LKM_CANCEL)
lock->cancel_pending = 0;
- else
- lock->unlock_pending = 0;
-
+ else {
+ if (!lock->unlock_pending)
+ recovery_wait = 1;
+ else
+ lock->unlock_pending = 0;
+ }
}
/* get an extra ref on lock. if we are just switching
@@ -244,6 +248,17 @@ leave:
spin_unlock(&res->spinlock);
wake_up(&res->wq);
+ if (recovery_wait) {
+ spin_lock(&res->spinlock);
+ /* Unlock request will directly succeed after owner dies,
+ * and the lock is already removed from grant list. We have to
+ * wait for RECOVERING done or we miss the chance to purge it
+ * since the removement is much faster than RECOVERING proc.
+ */
+ __dlm_wait_on_lockres_flags(res, DLM_LOCK_RES_RECOVERING);
+ spin_unlock(&res->spinlock);
+ }
+
/* let the caller's final dlm_lock_put handle the actual kfree */
if (actions & DLM_UNLOCK_FREE_LOCK) {
/* this should always be coupled with list removal */