From: Lennart Poettering <lennart@poettering.net>
Date: Tue, 7 Jan 2020 17:53:31 +0000 (+0100)
Subject: unit: make sure to pull in modprobe@loop.service when RootImage= is used with DeviceA... 
X-Git-Tag: v245-rc1~168^2~2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=867af7282b2eccab53727714172b1081532ca8de;p=thirdparty%2Fsystemd.git

unit: make sure to pull in modprobe@loop.service when RootImage= is used with DeviceAllow=

Fixes: #14214
---

diff --git a/src/core/unit.c b/src/core/unit.c
index 03b4b57273a..399a8cf655b 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -4324,6 +4324,11 @@ int unit_patch_contexts(Unit *u) {
                         r = cgroup_add_device_allow(cc, "block-blkext", "rwm");
                         if (r < 0)
                                 return r;
+
+                        /* Make sure "block-loop" can be resolved, i.e. make sure "loop" shows up in /proc/devices */
+                        r = unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_WANTS, "modprobe@loop.service", true, UNIT_DEPENDENCY_FILE);
+                        if (r < 0)
+                                return r;
                 }
         }