X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fcore%2Fcgroup.c;h=c24bfc8d33f34f848f36e6aca2ed4bc5fddb53ac;hb=23bbb0de4e3f85d9704a5c12a5afa2dfa0159e41;hp=0951a09964358b7157a046cf7b1d36832b4aa9b3;hpb=a931ad47a8623163a29d898224d8a8c1177ffdaf;p=elogind.git

diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index 0951a0996..c24bfc8d3 100644
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -630,10 +630,8 @@ static int unit_create_cgroups(Unit *u, CGroupControllerMask mask) {
 
         /* First, create our own group */
         r = cg_create_everywhere(u->manager->cgroup_supported, mask, u->cgroup_path);
-        if (r < 0) {
-                log_error("Failed to create cgroup %s: %s", u->cgroup_path, strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Failed to create cgroup %s: %m", u->cgroup_path);
 
         /* Keep track that this is now realized */
         u->cgroup_realized = true;
@@ -642,7 +640,7 @@ static int unit_create_cgroups(Unit *u, CGroupControllerMask mask) {
         /* Then, possibly move things over */
         r = cg_migrate_everywhere(u->manager->cgroup_supported, u->cgroup_path, u->cgroup_path, migrate_callback, u);
         if (r < 0)
-                log_warning("Failed to migrate cgroup from to %s: %s", u->cgroup_path, strerror(-r));
+                log_warning_errno(r, "Failed to migrate cgroup from to %s: %m", u->cgroup_path);
 
         return 0;
 }
@@ -715,7 +713,7 @@ unsigned manager_dispatch_cgroup_queue(Manager *m) {
 
                 r = unit_realize_cgroup_now(i, state);
                 if (r < 0)
-                        log_warning("Failed to realize cgroups for queued unit %s: %s", i->id, strerror(-r));
+                        log_warning_errno(r, "Failed to realize cgroups for queued unit %s: %m", i->id);
 
                 n++;
         }
@@ -798,7 +796,7 @@ void unit_destroy_cgroup(Unit *u) {
 
         r = cg_trim_everywhere(u->manager->cgroup_supported, u->cgroup_path, !unit_has_name(u, SPECIAL_ROOT_SLICE));
         if (r < 0)
-                log_debug("Failed to destroy cgroup %s: %s", u->cgroup_path, strerror(-r));
+                log_debug_errno(r, "Failed to destroy cgroup %s: %m", u->cgroup_path);
 
         hashmap_remove(u->manager->cgroup_unit, u->cgroup_path);
 
@@ -857,10 +855,8 @@ int manager_setup_cgroup(Manager *m) {
         m->cgroup_root = NULL;
 
         r = cg_pid_get_path(SYSTEMD_CGROUP_CONTROLLER, 0, &m->cgroup_root);
-        if (r < 0) {
-                log_error("Cannot determine cgroup we are running in: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Cannot determine cgroup we are running in: %m");
 
         /* LEGACY: Already in /system.slice? If so, let's cut this
          * off. This is to support live upgrades from older systemd
@@ -883,10 +879,8 @@ int manager_setup_cgroup(Manager *m) {
 
         /* 2. Show data */
         r = cg_get_path(SYSTEMD_CGROUP_CONTROLLER, m->cgroup_root, NULL, &path);
-        if (r < 0) {
-                log_error("Cannot find cgroup mount point: %s", strerror(-r));
-                return r;
-        }
+        if (r < 0)
+                return log_error_errno(r, "Cannot find cgroup mount point: %m");
 
         log_debug("Using cgroup controller " SYSTEMD_CGROUP_CONTROLLER ". File system hierarchy is at %s.", path);
         if (!m->test_run) {
@@ -895,7 +889,7 @@ int manager_setup_cgroup(Manager *m) {
                 if (m->running_as == SYSTEMD_SYSTEM) {
                         r = cg_install_release_agent(SYSTEMD_CGROUP_CONTROLLER, SYSTEMD_CGROUP_AGENT_PATH);
                         if (r < 0)
-                                log_warning("Failed to install release agent, ignoring: %s", strerror(-r));
+                                log_warning_errno(r, "Failed to install release agent, ignoring: %m");
                         else if (r > 0)
                                 log_debug("Installed release agent.");
                         else
@@ -904,10 +898,8 @@ int manager_setup_cgroup(Manager *m) {
 
                 /* 4. Make sure we are in the root cgroup */
                 r = cg_create_and_attach(SYSTEMD_CGROUP_CONTROLLER, m->cgroup_root, 0);
-                if (r < 0) {
-                        log_error("Failed to create root cgroup hierarchy: %s", strerror(-r));
-                        return r;
-                }
+                if (r < 0)
+                        return log_error_errno(r, "Failed to create root cgroup hierarchy: %m");
 
                 /* 5. And pin it, so that it cannot be unmounted */
                 safe_close(m->pin_cgroupfs_fd);