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Commit f0e64b8b by Daniel Lezcano
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give explicit error when the cgroup are not found

When the cgroup is not mounted, we silently exit without giving some clues to the user with what is happening. Give some info and an explicit error. Signed-off-by: 's avatarDaniel Lezcano <dlezcano@fr.ibm.com>
parent 7ad84da7
Showing with 7 additions and 1 deletion
src/lxc/cgroup.c
...@@ -240,6 +240,7 @@ int lxc_cgroup_create(const char *name, pid_t pid) ...@@ -240,6 +240,7 @@ int lxc_cgroup_create(const char *name, pid_t pid)
struct mntent *mntent; struct mntent *mntent;
FILE *file = NULL; FILE *file = NULL;
int err = -1; int err = -1;
int found = 0;
file = setmntent(MTAB, "r"); file = setmntent(MTAB, "r");
if (!file) { if (!file) {
...@@ -253,13 +254,18 @@ int lxc_cgroup_create(const char *name, pid_t pid) ...@@ -253,13 +254,18 @@ int lxc_cgroup_create(const char *name, pid_t pid)
if (!strcmp(mntent->mnt_type, "cgroup")) { if (!strcmp(mntent->mnt_type, "cgroup")) {
INFO("found cgroup mounted at '%s'", mntent->mnt_dir); INFO("[%d] found cgroup mounted at '%s',opts='%s'",
++found, mntent->mnt_dir, mntent->mnt_opts);
err = lxc_one_cgroup_create(name, mntent, pid); err = lxc_one_cgroup_create(name, mntent, pid);
if (err) if (err)
goto out; goto out;
} }
}; };
if (!found)
ERROR("No cgroup mounted on the system");
out: out:
endmntent(file); endmntent(file);
return err; return err;
......
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