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authorIvan Shapovalov <intelfx100@gmail.com>2015-03-07 08:44:52 -0500
committerZbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>2015-03-07 08:44:57 -0500
commit6e392c9c45643d106673c6643ac8bf4e65da13c1 (patch)
tree77cd87fdc7f0e104f2f48fb0ea282111dde94766 /src/core/path.c
parent6829cec4dce1b41c895425a120b70d0a3ed677ab (diff)
core: do not spawn jobs or touch other units during coldplugging
Because the order of coldplugging is not defined, we can reference a not-yet-coldplugged unit and read its state while it has not yet been set to a meaningful value. This way, already active units may get started again. We fix this by deferring such actions until all units have been at least somehow coldplugged. Fixes https://bugs.freedesktop.org/show_bug.cgi?id=88401
Diffstat (limited to 'src/core/path.c')
-rw-r--r--src/core/path.c14
1 files changed, 10 insertions, 4 deletions
diff --git a/src/core/path.c b/src/core/path.c
index fbb695d87f..6be9ac84be 100644
--- a/src/core/path.c
+++ b/src/core/path.c
@@ -438,7 +438,12 @@ static void path_set_state(Path *p, PathState state) {
static void path_enter_waiting(Path *p, bool initial, bool recheck);
-static int path_coldplug(Unit *u) {
+static int path_enter_waiting_coldplug(Unit *u) {
+ path_enter_waiting(PATH(u), true, true);
+ return 0;
+}
+
+static int path_coldplug(Unit *u, Hashmap *deferred_work) {
Path *p = PATH(u);
assert(p);
@@ -447,9 +452,10 @@ static int path_coldplug(Unit *u) {
if (p->deserialized_state != p->state) {
if (p->deserialized_state == PATH_WAITING ||
- p->deserialized_state == PATH_RUNNING)
- path_enter_waiting(p, true, true);
- else
+ p->deserialized_state == PATH_RUNNING) {
+ hashmap_put(deferred_work, u, &path_enter_waiting_coldplug);
+ path_set_state(p, PATH_WAITING);
+ } else
path_set_state(p, p->deserialized_state);
}