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-rw-r--r--module/zfs/zfs_znode.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/module/zfs/zfs_znode.c b/module/zfs/zfs_znode.c
index d9fcd2912..19cb414a9 100644
--- a/module/zfs/zfs_znode.c
+++ b/module/zfs/zfs_znode.c
@@ -1167,6 +1167,16 @@ zfs_rezget(znode_t *zp)
uint64_t gen;
znode_hold_t *zh;
+ /*
+ * skip ctldir, otherwise they will always get invalidated. This will
+ * cause funny behaviour for the mounted snapdirs. Especially for
+ * Linux >= 3.18, d_invalidate will detach the mountpoint and prevent
+ * anyone automount it again as long as someone is still using the
+ * detached mount.
+ */
+ if (zp->z_is_ctldir)
+ return (0);
+
zh = zfs_znode_hold_enter(zsb, obj_num);
mutex_enter(&zp->z_acl_lock);