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-rw-r--r--util-linux/umount.c24
1 files changed, 8 insertions, 16 deletions
diff --git a/util-linux/umount.c b/util-linux/umount.c
index c958fd5..0c50dc9 100644
--- a/util-linux/umount.c
+++ b/util-linux/umount.c
@@ -42,7 +42,7 @@
//usage: "\n -l Lazy umount (detach filesystem)"
//usage: "\n -f Force umount (i.e., unreachable NFS server)"
//usage: IF_FEATURE_MOUNT_LOOP(
-//usage: "\n -D Don't free loop device even if it has been used"
+//usage: "\n -d Free loop device if it has been used"
//usage: )
//usage:
//usage:#define umount_example_usage
@@ -68,22 +68,14 @@ static struct mntent *getmntent_r(FILE* stream, struct mntent* result,
}
#endif
-/* Ignored: -v -t -i
- * bbox always acts as if -d is present.
- * -D can be used to suppress it (bbox extension).
- * Rationale:
- * (1) util-linux's umount does it if "loop=..." is seen in /etc/mtab:
- * thus, on many systems, bare umount _does_ drop loop devices.
- * (2) many users request this feature.
- */
-#define OPTION_STRING "fldDnra" "vt:i"
+/* ignored: -v -t -i */
+#define OPTION_STRING "fldnra" "vt:i"
#define OPT_FORCE (1 << 0) // Same as MNT_FORCE
#define OPT_LAZY (1 << 1) // Same as MNT_DETACH
-//#define OPT_FREE_LOOP (1 << 2) // -d is assumed always present
-#define OPT_DONT_FREE_LOOP (1 << 3)
-#define OPT_NO_MTAB (1 << 4)
-#define OPT_REMOUNT (1 << 5)
-#define OPT_ALL (ENABLE_FEATURE_UMOUNT_ALL ? (1 << 6) : 0)
+#define OPT_FREELOOP (1 << 2)
+#define OPT_NO_MTAB (1 << 3)
+#define OPT_REMOUNT (1 << 4)
+#define OPT_ALL (ENABLE_FEATURE_UMOUNT_ALL ? (1 << 5) : 0)
int umount_main(int argc, char **argv) MAIN_EXTERNALLY_VISIBLE;
int umount_main(int argc UNUSED_PARAM, char **argv)
@@ -206,7 +198,7 @@ int umount_main(int argc UNUSED_PARAM, char **argv)
} else {
// De-allocate the loop device. This ioctl should be ignored on
// any non-loop block devices.
- if (ENABLE_FEATURE_MOUNT_LOOP && !(opt & OPT_DONT_FREE_LOOP) && m)
+ if (ENABLE_FEATURE_MOUNT_LOOP && (opt & OPT_FREELOOP) && m)
del_loop(m->device);
if (ENABLE_FEATURE_MTAB_SUPPORT && !(opt & OPT_NO_MTAB) && m)
erase_mtab(m->dir);