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authorLennart Poettering <lennart@poettering.net>2012-04-16 19:14:11 +0200
committerLennart Poettering <lennart@poettering.net>2012-04-16 19:15:00 +0200
commitb59e246565337d6c6967059dd15a52a15277433e (patch)
tree3ea65b16f40db14e76ee5437a76c9d2173ea8728 /src
parentb69d29ce049f12d463a589e18561dd10ee8c09f1 (diff)
logind: remove redundant entries from logind's default controller lists too
Diffstat (limited to 'src')
-rw-r--r--src/core/cgroup.c31
-rw-r--r--src/core/cgroup.h1
-rw-r--r--src/core/manager.c3
-rw-r--r--src/login/logind.c3
-rw-r--r--src/shared/cgroup-util.c33
-rw-r--r--src/shared/cgroup-util.h2
6 files changed, 41 insertions, 32 deletions
diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index b1e22e0ac3..e07d1ed3c9 100644
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -373,7 +373,7 @@ int manager_setup_cgroup(Manager *m) {
log_debug("Created root group.");
- manager_shorten_default_controllers(m);
+ cg_shorten_controllers(m->default_controllers);
finish:
free(current);
@@ -397,35 +397,6 @@ void manager_shutdown_cgroup(Manager *m, bool delete) {
m->cgroup_hierarchy = NULL;
}
-void manager_shorten_default_controllers(Manager *m) {
- char **f, **t;
-
- strv_uniq(m->default_controllers);
-
- if (!m->default_controllers)
- return;
-
- for (f = m->default_controllers, t = m->default_controllers; *f; f++) {
-
- if (!streq(*f, "systemd") && !streq(*f, "name=systemd")) {
- char *cc;
-
- cc = alloca(sizeof("/sys/fs/cgroup/") + strlen(*f));
- strcpy(stpcpy(cc, "/sys/fs/cgroup/"), *f);
-
- if (access(cc, F_OK) >= 0) {
- *(t++) = *f;
- continue;
- }
- }
-
- log_debug("Controller %s not available or redundant, removing from default controllers list.", *f);
- free(*f);
- }
-
- *t = NULL;
-}
-
int cgroup_bonding_get(Manager *m, const char *cgroup, CGroupBonding **bonding) {
CGroupBonding *b;
char *p;
diff --git a/src/core/cgroup.h b/src/core/cgroup.h
index dd2e6a4aee..95f09e0019 100644
--- a/src/core/cgroup.h
+++ b/src/core/cgroup.h
@@ -85,7 +85,6 @@ pid_t cgroup_bonding_search_main_pid_list(CGroupBonding *b);
int manager_setup_cgroup(Manager *m);
void manager_shutdown_cgroup(Manager *m, bool delete);
-void manager_shorten_default_controllers(Manager *m);
int cgroup_bonding_get(Manager *m, const char *cgroup, CGroupBonding **bonding);
int cgroup_notify_empty(Manager *m, const char *group);
diff --git a/src/core/manager.c b/src/core/manager.c
index 44690525ea..1446c01ea5 100644
--- a/src/core/manager.c
+++ b/src/core/manager.c
@@ -63,6 +63,7 @@
#include "exit-status.h"
#include "virt.h"
#include "watchdog.h"
+#include "cgroup-util.h"
/* As soon as 16 units are in our GC queue, make sure to run a gc sweep */
#define GC_QUEUE_ENTRIES_MAX 16
@@ -3172,7 +3173,7 @@ int manager_set_default_controllers(Manager *m, char **controllers) {
strv_free(m->default_controllers);
m->default_controllers = l;
- manager_shorten_default_controllers(m);
+ cg_shorten_controllers(m->default_controllers);
return 0;
}
diff --git a/src/login/logind.c b/src/login/logind.c
index 1169752873..6b7012ec73 100644
--- a/src/login/logind.c
+++ b/src/login/logind.c
@@ -1205,6 +1205,9 @@ int manager_startup(Manager *m) {
assert(m);
assert(m->epoll_fd <= 0);
+ cg_shorten_controllers(m->reset_controllers);
+ cg_shorten_controllers(m->controllers);
+
m->epoll_fd = epoll_create1(EPOLL_CLOEXEC);
if (m->epoll_fd < 0)
return -errno;
diff --git a/src/shared/cgroup-util.c b/src/shared/cgroup-util.c
index 8ceb382820..3cb41c7c5f 100644
--- a/src/shared/cgroup-util.c
+++ b/src/shared/cgroup-util.c
@@ -34,6 +34,7 @@
#include "set.h"
#include "macro.h"
#include "util.h"
+#include "strv.h"
int cg_enumerate_processes(const char *controller, const char *path, FILE **_f) {
char *fs;
@@ -1100,3 +1101,35 @@ int cg_get_user_path(char **path) {
*path = p;
return 0;
}
+
+char **cg_shorten_controllers(char **controllers) {
+ char **f, **t;
+
+ controllers = strv_uniq(controllers);
+
+ if (!controllers)
+ return controllers;
+
+ for (f = controllers, t = controllers; *f; f++) {
+ char *cc;
+
+ if (streq(*f, "systemd") || streq(*f, SYSTEMD_CGROUP_CONTROLLER)) {
+ free(*f);
+ continue;
+ }
+
+ cc = alloca(sizeof("/sys/fs/cgroup/") + strlen(*f));
+ strcpy(stpcpy(cc, "/sys/fs/cgroup/"), *f);
+
+ if (access(cc, F_OK) < 0) {
+ log_debug("Controller %s is not available, removing from controllers list.", *f);
+ free(*f);
+ continue;
+ }
+
+ *(t++) = *f;
+ }
+
+ *t = NULL;
+ return controllers;
+}
diff --git a/src/shared/cgroup-util.h b/src/shared/cgroup-util.h
index cc0ce54521..bb156fc259 100644
--- a/src/shared/cgroup-util.h
+++ b/src/shared/cgroup-util.h
@@ -70,4 +70,6 @@ int cg_is_empty_recursive(const char *controller, const char *path, bool ignore_
int cg_get_user_path(char **path);
+char **cg_shorten_controllers(char **controllers);
+
#endif