return 0;
}
-uint64_t unit_get_ancestor_memory_low(Unit *u) {
- CGroupContext *c;
-
- /* 1. Is MemoryLow set in this unit? If so, use that.
- * 2. Is DefaultMemoryLow set in any ancestor? If so, use that.
- * 3. Otherwise, return CGROUP_LIMIT_MIN. */
-
- assert(u);
-
- c = unit_get_cgroup_context(u);
-
- if (c->memory_low_set)
- return c->memory_low;
-
- while (UNIT_ISSET(u->slice)) {
- u = UNIT_DEREF(u->slice);
- c = unit_get_cgroup_context(u);
-
- if (c->default_memory_low_set)
- return c->default_memory_low;
- }
-
- /* We've reached the root, but nobody had DefaultMemoryLow set, so set it to the kernel default. */
- return CGROUP_LIMIT_MIN;
-}
+#define UNIT_DEFINE_ANCESTOR_MEMORY_LOOKUP(entry) \
+ uint64_t unit_get_ancestor_##entry(Unit *u) { \
+ CGroupContext *c; \
+ \
+ /* 1. Is entry set in this unit? If so, use that. \
+ * 2. Is the default for this entry set in any \
+ * ancestor? If so, use that. \
+ * 3. Otherwise, return CGROUP_LIMIT_MIN. */ \
+ \
+ assert(u); \
+ \
+ c = unit_get_cgroup_context(u); \
+ \
+ if (c->entry##_set) \
+ return c->entry; \
+ \
+ while (UNIT_ISSET(u->slice)) { \
+ u = UNIT_DEREF(u->slice); \
+ c = unit_get_cgroup_context(u); \
+ \
+ if (c->default_##entry##_set) \
+ return c->default_##entry; \
+ } \
+ \
+ /* We've reached the root, but nobody had default for \
+ * this entry set, so set it to the kernel default. */ \
+ return CGROUP_LIMIT_MIN; \
+}
+
+UNIT_DEFINE_ANCESTOR_MEMORY_LOOKUP(memory_low);
static void cgroup_xattr_apply(Unit *u) {
char ids[SD_ID128_STRING_MAX];