[PATCH] swapoff: correctly handle UUID= and LABEL= identifiers

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While parsing /etc/fstab, swapoff did not make provision for UUID= and
LABEL= identifiers.  Added logic similar to swapon -a code.

Signed-off-by: Kel Modderman <kel@xxxxxxxxxx>
Signed-off-by: LaMont Jones <lamont@xxxxxxxxxxxx>
---
 mount/swapon.c |   15 ++++++++++++---
 1 files changed, 12 insertions(+), 3 deletions(-)

diff --git a/mount/swapon.c b/mount/swapon.c
index b4c84f9..0203287 100644
--- a/mount/swapon.c
+++ b/mount/swapon.c
@@ -491,9 +491,18 @@ main_swapoff(int argc, char *argv[]) {
 			exit(2);
 		}
 		while ((fstab = getmntent(fp)) != NULL) {
-			if (streq(fstab->mnt_type, MNTTYPE_SWAP) &&
-			    !is_in_proc_swaps(fstab->mnt_fsname))
-				do_swapoff(fstab->mnt_fsname, QUIET);
+			const char *orig_special = fstab->mnt_fsname;
+			const char *special;
+
+			if (!streq(fstab->mnt_type, MNTTYPE_SWAP))
+				continue;
+
+			special = fsprobe_get_devname(orig_special);
+			if (!special)
+				continue;
+
+			if (!is_in_proc_swaps(special))
+				do_swapoff(special, QUIET);
 		}
 		fclose(fp);
 	}
-- 
1.5.2.3

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