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nspawn: create mountpoint for bpffs

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When we mount a tmpfs as /sys, create a mountpoint for bpf, as we
already do for cgroup
This commit is contained in:
Matteo Croce
2025-06-05 10:00:05 +02:00
parent 48e0f7bc2f
commit a80c06cf02
1 changed files with 7 additions and 5 deletions
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12
src/nspawn/nspawn-mount.c
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@@ -509,12 +509,14 @@ int mount_sysfs(const char *dest, MountSettingsMask mount_settings) {
if (rmdir(full) < 0)
return log_error_errno(errno, "Failed to remove %s: %m", full);
/* Create mountpoint for cgroups. Otherwise we are not allowed since we remount /sys/ read-only. */
_cleanup_free_ char *x = path_join(top, "/fs/cgroup");
if (!x)
return log_oom();
/* Create mountpoints. Otherwise we are not allowed since we remount /sys/ read-only. */
FOREACH_STRING(p, "/fs/cgroup", "/fs/bpf") {
_cleanup_free_ char *x = path_join(top, p);
if (!x)
return log_oom();
(void) mkdir_p(x, 0755);
(void) mkdir_p(x, 0755);
}
return mount_nofollow_verbose(LOG_ERR, NULL, top, NULL,
MS_BIND|MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_REMOUNT|extra_flags, NULL);