diff options
Diffstat (limited to 'src/nspawn/nspawn.c')
| -rw-r--r-- | src/nspawn/nspawn.c | 23 |
1 files changed, 15 insertions, 8 deletions
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c index 12d6eab8be..a775d1ac4f 100644 --- a/src/nspawn/nspawn.c +++ b/src/nspawn/nspawn.c @@ -316,7 +316,7 @@ static int custom_mounts_prepare(void) { return 0; } -static int detect_unified_cgroup_hierarchy(void) { +static int detect_unified_cgroup_hierarchy(const char *directory) { const char *e; int r, all_unified, systemd_unified; @@ -344,9 +344,16 @@ static int detect_unified_cgroup_hierarchy(void) { /* Otherwise inherit the default from the host system */ if (all_unified > 0) arg_unified_cgroup_hierarchy = CGROUP_UNIFIED_ALL; - else if (systemd_unified > 0) - arg_unified_cgroup_hierarchy = CGROUP_UNIFIED_SYSTEMD; - else + else if (systemd_unified > 0) { + /* mixed cgroup hierarchy support was added in 232 */ + r = systemd_installation_has_version(directory, 232); + if (r < 0) + return log_error_errno(r, "Failed to determine systemd version in container: %m"); + if (r > 0) + arg_unified_cgroup_hierarchy = CGROUP_UNIFIED_SYSTEMD; + else + arg_unified_cgroup_hierarchy = CGROUP_UNIFIED_NONE; + } else arg_unified_cgroup_hierarchy = CGROUP_UNIFIED_NONE; return 0; @@ -1125,10 +1132,6 @@ static int parse_argv(int argc, char *argv[]) { arg_caps_retain = (arg_caps_retain | plus | (arg_private_network ? 1ULL << CAP_NET_ADMIN : 0)) & ~minus; - r = detect_unified_cgroup_hierarchy(); - if (r < 0) - return r; - e = getenv("SYSTEMD_NSPAWN_CONTAINER_SERVICE"); if (e) arg_container_service_name = e; @@ -2970,6 +2973,10 @@ static int outer_child( if (r < 0) return r; + r = detect_unified_cgroup_hierarchy(directory); + if (r < 0) + return r; + if (arg_userns_mode != USER_NAMESPACE_NO) { /* Let the parent know which UID shift we read from the image */ l = send(uid_shift_socket, &arg_uid_shift, sizeof(arg_uid_shift), MSG_NOSIGNAL); |