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core/slice: skip member units without realized cgroup during freeze or thaw

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This ensures that services with `RemainAfterExit` but without any
process running won't cause failure during freeze.

(cherry picked from commit fcb0878f75)
(cherry picked from commit 2eb040f36f)
(cherry picked from commit 9a0bd2ff70)
This commit is contained in:
msizanoen1 2022-12-07 16:38:05 +07:00 committed by Luca Boccassi
parent 050a356d04
commit a62fc7d66c
1 changed files with 3 additions and 0 deletions
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3
src/core/slice.c
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@ -381,6 +381,9 @@ static int slice_freezer_action(Unit *s, FreezerAction action) {
}
UNIT_FOREACH_DEPENDENCY(member, s, UNIT_ATOM_SLICE_OF) {
if (!member->cgroup_realized)
continue;
if (action == FREEZER_FREEZE)
r = UNIT_VTABLE(member)->freeze(member);
else