mount: remove obsolete -n

It seems that systemd still uses legacy -n option. The option has been
originally designed to avoid write to /etc/mtab during boot when root
FS is not ready or read-only.

This is not necessary for long time, because /etc/mtab is not a real
file (it's symlink) and write to the file is impossible. All utils
should be able to detect the symlink and ignore mtab. This concept is
supported for very long time before systemd.

The userspase mount options are currently maintained by libmount
(mount(8) and mount.nfs) in /run/mount) which is tmpfs initialized
during early boot.

diff --git a/src/core/mount.c b/src/core/mount.c
index bf8e52bf0e9c14d9c8d80656aeea46979bc3c543..c0d1cdfbd4d18e4c4c48e55d8dbfba17cc9c8bf2 100644 (file)
--- a/src/core/mount.c
+++ b/src/core/mount.c
@@ -834,8 +834,6 @@ static void mount_enter_unmounting(Mount *m) {
         m->control_command = m->exec_command + MOUNT_EXEC_UNMOUNT;
 
         r = exec_command_set(m->control_command, UMOUNT_PATH, m->where, NULL);
-        if (r >= 0 && UNIT(m)->manager->running_as == MANAGER_SYSTEM)
-                r = exec_command_append(m->control_command, "-n", NULL);
         if (r < 0)
                 goto fail;
 
@@ -886,8 +884,6 @@ static void mount_enter_mounting(Mount *m) {
 
                 r = exec_command_set(m->control_command, MOUNT_PATH,
                                      m->parameters_fragment.what, m->where, NULL);
-                if (r >= 0 && UNIT(m)->manager->running_as == MANAGER_SYSTEM)
-                        r = exec_command_append(m->control_command, "-n", NULL);
                 if (r >= 0 && m->sloppy_options)
                         r = exec_command_append(m->control_command, "-s", NULL);
                 if (r >= 0 && m->parameters_fragment.fstype)
@@ -934,8 +930,6 @@ static void mount_enter_remounting(Mount *m) {
                 r = exec_command_set(m->control_command, MOUNT_PATH,
                                      m->parameters_fragment.what, m->where,
                                      "-o", o, NULL);
-                if (r >= 0 && UNIT(m)->manager->running_as == MANAGER_SYSTEM)
-                        r = exec_command_append(m->control_command, "-n", NULL);
                 if (r >= 0 && m->sloppy_options)
                         r = exec_command_append(m->control_command, "-s", NULL);
                 if (r >= 0 && m->parameters_fragment.fstype)