diff options
| -rw-r--r-- | src/umount.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/src/umount.c b/src/umount.c index 2ae8f86ecd..4fd6b22ad7 100644 --- a/src/umount.c +++ b/src/umount.c @@ -466,12 +466,24 @@ static int swap_points_list_off(MountPoint **head, bool *changed) { static int loopback_points_list_detach(MountPoint **head, bool *changed) { MountPoint *m, *n; - int n_failed = 0; + int n_failed = 0, k; + struct stat root_st; assert(head); + k = lstat("/", &root_st); + LIST_FOREACH_SAFE(mount_point, m, n, *head) { int r; + struct stat loopback_st; + + if (k >= 0 && + major(root_st.st_dev) != 0 && + lstat(m->path, &loopback_st) >= 0 && + root_st.st_dev == loopback_st.st_rdev) { + n_failed ++; + continue; + } if ((r = delete_loopback(m->path)) >= 0) { @@ -490,13 +502,23 @@ static int loopback_points_list_detach(MountPoint **head, bool *changed) { static int dm_points_list_detach(MountPoint **head, bool *changed) { MountPoint *m, *n; - int n_failed = 0; + int n_failed = 0, k; + struct stat root_st; assert(head); + k = lstat("/", &root_st); + LIST_FOREACH_SAFE(mount_point, m, n, *head) { int r; + if (k >= 0 && + major(root_st.st_dev) != 0 && + root_st.st_dev == m->devnum) { + n_failed ++; + continue; + } + if ((r = delete_dm(m->devnum)) >= 0) { if (r > 0 && changed) |