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cgroup-util: drop 'controller' argument from cg_set_attribute(), cg_get_attribute() and friends

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Non-null controller arguments are always ignored when running on cgroup v2.
Let's drop the argument.

No functional change, just refactoring.
This commit is contained in:
Yu Watanabe
2025-11-17 21:30:29 +09:00
parent 4d1badbbc4
commit 4dbf06bd85
7 changed files with 31 additions and 31 deletions
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src/basic/limits-util.c
+3 -3
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@@ -42,7 +42,7 @@ uint64_t physical_memory(void) {
return mem;
}
if (r > 0) {
r = cg_get_attribute("memory", root, "memory.max", &value);
r = cg_get_attribute(root, "memory.max", &value);
if (r == -ENOENT) /* Field does not exist on the system's top-level cgroup, hence don't
* complain. (Note that it might exist on our own root though, if we live
* in a cgroup namespace, hence check anyway instead of not even
@@ -56,7 +56,7 @@ uint64_t physical_memory(void) {
if (streq(value, "max"))
return mem;
} else {
r = cg_get_attribute("memory", root, "memory.limit_in_bytes", &value);
r = cg_get_attribute(root, "memory.limit_in_bytes", &value);
if (r < 0) {
log_debug_errno(r, "Failed to read memory.limit_in_bytes cgroup attribute, ignoring cgroup memory limit: %m");
return mem;
@@ -159,7 +159,7 @@ uint64_t system_tasks_max(void) {
/* We'll have the "pids.max" attribute on the our root cgroup only if we are in a
* CLONE_NEWCGROUP namespace. On the top-level namespace this attribute is missing, hence
* suppress any message about that */
r = cg_get_attribute_as_uint64("pids", root, "pids.max", &c);
r = cg_get_attribute_as_uint64(root, "pids.max", &c);
if (r < 0 && r != -ENODATA)
log_debug_errno(r, "Failed to read pids.max attribute of root cgroup, ignoring: %m");
}