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authorKay Sievers <kay@vrfy.org>2014-05-05 18:49:43 +0200
committerKay Sievers <kay@vrfy.org>2014-05-05 18:52:36 +0200
commit99a17ada9caa8e190b5cafa5cd3c19618feeff48 (patch)
treeb9e0be7af59bee7dda5c2dc7a32d74a2dc8981d5
parent61fb23db45c626d92b4e33f09b9287f58a3625a5 (diff)
core: require cgroups filesystem to be available
We should no longer pretend that we can run in any sensible way without the kernel supporting us with cgroups functionality.
-rw-r--r--src/core/cgroup.c6
-rw-r--r--src/core/main.c16
-rw-r--r--src/core/mount-setup.c8
3 files changed, 4 insertions, 26 deletions
diff --git a/src/core/cgroup.c b/src/core/cgroup.c
index 1c05c23449..3aeaf56656 100644
--- a/src/core/cgroup.c
+++ b/src/core/cgroup.c
@@ -862,12 +862,6 @@ int manager_setup_cgroup(Manager *m) {
assert(m);
- /* 0. Be nice to Ingo Molnar #628004 */
- if (path_is_mount_point("/sys/fs/cgroup/systemd", false) <= 0) {
- log_warning("No control group support available, not creating root group.");
- return 0;
- }
-
/* 1. Determine hierarchy */
free(m->cgroup_root);
m->cgroup_root = NULL;
diff --git a/src/core/main.c b/src/core/main.c
index a6a5aa70f2..c1b0ffd9bb 100644
--- a/src/core/main.c
+++ b/src/core/main.c
@@ -1184,21 +1184,6 @@ static void test_usr(void) {
"Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information.");
}
-static void test_cgroups(void) {
-
- if (access("/proc/cgroups", F_OK) >= 0)
- return;
-
- log_warning("CONFIG_CGROUPS was not set when your kernel was compiled. "
- "Systems without control groups are not supported. "
- "We will now sleep for 10s, and then continue boot-up. "
- "Expect breakage and please do not file bugs. "
- "Instead fix your kernel and enable CONFIG_CGROUPS. "
- "Consult http://0pointer.de/blog/projects/cgroups-vs-cgroups.html for more information.");
-
- sleep(10);
-}
-
static int initialize_join_controllers(void) {
/* By default, mount "cpu" + "cpuacct" together, and "net_cls"
* + "net_prio". We'd like to add "cpuset" to the mix, but
@@ -1586,7 +1571,6 @@ int main(int argc, char *argv[]) {
test_mtab();
test_usr();
- test_cgroups();
}
if (arg_running_as == SYSTEMD_SYSTEM && arg_runtime_watchdog > 0)
diff --git a/src/core/mount-setup.c b/src/core/mount-setup.c
index 0a45b24774..34d71e5b40 100644
--- a/src/core/mount-setup.c
+++ b/src/core/mount-setup.c
@@ -92,13 +92,13 @@ static const MountPoint mount_table[] = {
{ "tmpfs", "/run", "tmpfs", "mode=755", MS_NOSUID|MS_NODEV|MS_STRICTATIME,
NULL, MNT_FATAL|MNT_IN_CONTAINER },
{ "tmpfs", "/sys/fs/cgroup", "tmpfs", "mode=755", MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_STRICTATIME,
- NULL, MNT_IN_CONTAINER },
+ NULL, MNT_FATAL|MNT_IN_CONTAINER },
#ifdef HAVE_XATTR
{ "cgroup", "/sys/fs/cgroup/systemd", "cgroup", "none,name=systemd,xattr", MS_NOSUID|MS_NOEXEC|MS_NODEV,
- NULL, MNT_IN_CONTAINER },
+ NULL, MNT_FATAL|MNT_IN_CONTAINER },
#endif
{ "cgroup", "/sys/fs/cgroup/systemd", "cgroup", "none,name=systemd", MS_NOSUID|MS_NOEXEC|MS_NODEV,
- NULL, MNT_IN_CONTAINER },
+ NULL, MNT_FATAL|MNT_IN_CONTAINER },
{ "pstore", "/sys/fs/pstore", "pstore", NULL, MS_NOSUID|MS_NOEXEC|MS_NODEV,
NULL, MNT_NONE },
#ifdef ENABLE_EFI
@@ -188,7 +188,7 @@ static int mount_one(const MountPoint *p, bool relabel) {
p->type,
p->flags,
p->options) < 0) {
- log_full((p->mode & MNT_FATAL) ? LOG_ERR : LOG_DEBUG, "Failed to mount %s: %m", p->where);
+ log_full((p->mode & MNT_FATAL) ? LOG_ERR : LOG_DEBUG, "Failed to mount %s at %s: %m", p->type, p->where);
return (p->mode & MNT_FATAL) ? -errno : 0;
}