From db39a62784e8f857a67cb4a83ade28a906f79679 Mon Sep 17 00:00:00 2001
From: Yu Watanabe <watanabe.yu+github@gmail.com>
Date: Tue, 17 Nov 2020 10:50:12 +0900
Subject: [PATCH] core/mount: mount_start() may be called during the state is
 MOUNT_MOUNTING_DONE

As, both MOUNT_MOUNTING and MOUNT_MOUNTING_DONE are mapped to
UNIT_ACTIVATING.

Fixes #17570.
---
 src/core/mount.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/core/mount.c b/src/core/mount.c
index 41dc7e99674..faa2cb0e039 100644
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -1144,7 +1144,7 @@ static int mount_start(Unit *u) {
                 return -EAGAIN;
 
         /* Already on it! */
-        if (m->state == MOUNT_MOUNTING)
+        if (IN_SET(m->state, MOUNT_MOUNTING, MOUNT_MOUNTING_DONE))
                 return 0;
 
         assert(IN_SET(m->state, MOUNT_DEAD, MOUNT_FAILED));