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cgroup-util: drop unused cg_rmdir()

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When removing a cgroup, we always want to eliminate subcgroups
first, i.e. use cg_trim(). And cg_rmdir() (along with
CGROUP_REMOVE flag) is simply unused. Kill it.
This commit is contained in:
Mike Yuan
2024-08-02 16:36:08 +02:00
parent 1daf575990
commit 031860d6cb
4 changed files with 3 additions and 48 deletions
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src/basic/cgroup-util.c
-31
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@@ -291,31 +291,6 @@ int cg_read_subgroup(DIR *d, char **ret) {
return 0;
}
int cg_rmdir(const char *controller, const char *path) {
_cleanup_free_ char *p = NULL;
int r;
r = cg_get_path(controller, path, NULL, &p);
if (r < 0)
return r;
r = rmdir(p);
if (r < 0 && errno != ENOENT)
return -errno;
r = cg_hybrid_unified();
if (r <= 0)
return r;
if (streq(controller, SYSTEMD_CGROUP_CONTROLLER)) {
r = cg_rmdir(SYSTEMD_CGROUP_CONTROLLER_LEGACY, path);
if (r < 0)
log_warning_errno(r, "Failed to remove compat systemd cgroup %s: %m", path);
}
return 0;
}
static int cg_kill_items(
const char *path,
int sig,
@@ -532,12 +507,6 @@ int cg_kill_recursive(
}
}
if (FLAGS_SET(flags, CGROUP_REMOVE)) {
r = cg_rmdir(SYSTEMD_CGROUP_CONTROLLER, path);
if (!IN_SET(r, -ENOENT, -EBUSY))
RET_GATHER(ret, log_debug_errno(r, "Failed to remove cgroup '%s': %m", path));
}
return ret;
}