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core: add a "Requires=" dependency between units and the slices they are located in

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We place the processes we fork off in the cgroup anyway, and we probably
shouldn't be able to get that far if we couldn't set up the slice due to
resource problems or unmet conditions. Hence upgrade the dependency
between units and the slices they are located in from Wants= to
Requires=.
This commit is contained in:
Lennart Poettering 2015-09-29 13:06:28 +02:00
parent f0792aae43
commit 8c8da0e0cb
1 changed files with 3 additions and 3 deletions
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6
src/core/unit.c
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@ -1129,12 +1129,12 @@ static int unit_add_slice_dependencies(Unit *u) {
return 0; return 0;
if (UNIT_ISSET(u->slice)) if (UNIT_ISSET(u->slice))
return unit_add_two_dependencies(u, UNIT_AFTER, UNIT_WANTS, UNIT_DEREF(u->slice), true); return unit_add_two_dependencies(u, UNIT_AFTER, UNIT_REQUIRES, UNIT_DEREF(u->slice), true);
if (streq(u->id, SPECIAL_ROOT_SLICE)) if (unit_has_name(u, SPECIAL_ROOT_SLICE))
return 0; return 0;
return unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_WANTS, SPECIAL_ROOT_SLICE, NULL, true); return unit_add_two_dependencies_by_name(u, UNIT_AFTER, UNIT_REQUIRES, SPECIAL_ROOT_SLICE, NULL, true);
} }
static int unit_add_mount_dependencies(Unit *u) { static int unit_add_mount_dependencies(Unit *u) {