systemd/0016-Revert-core-don-t-load-dropin-data-multiple-times-fo.patch
Zbigniew Jędrzejewski-Szmek 27bd1bd49f Backport some patches
2017-07-31 15:52:44 -04:00

72 lines
2.6 KiB
Diff

From 29d9cfc097586ac79911a5f5035c45b1971a5b1f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Zbigniew=20J=C4=99drzejewski-Szmek?= <zbyszek@in.waw.pl>
Date: Sat, 22 Jul 2017 08:39:49 -0400
Subject: [PATCH] Revert "core: don't load dropin data multiple times for the
same unit (#5139)"
This reverts commit 2d058a87ffb2d31a50422a8aebd119bbb4427244.
When we add another name to a unit (by following an alias), we need to
reload all drop-ins. This is necessary to load any additional dropins
found in the dirs created from the alias name.
Fixes #6334.
(cherry picked from commit 9e4ea9cc34fa032a47c253ddd94ac6c7afda663e)
---
src/core/unit.c | 23 +++++++----------------
1 file changed, 7 insertions(+), 16 deletions(-)
diff --git a/src/core/unit.c b/src/core/unit.c
index b28eeb2262..9d913e8c64 100644
--- a/src/core/unit.c
+++ b/src/core/unit.c
@@ -1098,7 +1098,6 @@ void unit_dump(Unit *u, FILE *f, const char *prefix) {
/* Common implementation for multiple backends */
int unit_load_fragment_and_dropin(Unit *u) {
- Unit *t;
int r;
assert(u);
@@ -1111,18 +1110,15 @@ int unit_load_fragment_and_dropin(Unit *u) {
if (u->load_state == UNIT_STUB)
return -ENOENT;
- /* If the unit is an alias and the final unit has already been
- * loaded, there's no point in reloading the dropins one more time. */
- t = unit_follow_merge(u);
- if (t != u && t->load_state != UNIT_STUB)
- return 0;
-
- return unit_load_dropin(t);
+ /* Load drop-in directory data. If u is an alias, we might be reloading the
+ * target unit needlessly. But we cannot be sure which drops-ins have already
+ * been loaded and which not, at least without doing complicated book-keeping,
+ * so let's always reread all drop-ins. */
+ return unit_load_dropin(unit_follow_merge(u));
}
/* Common implementation for multiple backends */
int unit_load_fragment_and_dropin_optional(Unit *u) {
- Unit *t;
int r;
assert(u);
@@ -1138,13 +1134,8 @@ int unit_load_fragment_and_dropin_optional(Unit *u) {
if (u->load_state == UNIT_STUB)
u->load_state = UNIT_LOADED;
- /* If the unit is an alias and the final unit has already been
- * loaded, there's no point in reloading the dropins one more time. */
- t = unit_follow_merge(u);
- if (t != u && t->load_state != UNIT_STUB)
- return 0;
-
- return unit_load_dropin(t);
+ /* Load drop-in directory data */
+ return unit_load_dropin(unit_follow_merge(u));
}
int unit_add_default_target_dependency(Unit *u, Unit *target) {