diff --git a/configure b/configure
index 738bd89e..31ec8d39 100755
--- a/configure
+++ b/configure
@@ -10370,7 +10370,7 @@ fi
 done
 
 fi
-for ac_header in  	dirent.h 	errno.h 	execinfo.h 	getopt.h 	malloc.h 	mntent.h 	paths.h 	semaphore.h 	setjmp.h 	signal.h 	stdarg.h 	stdint.h 	stdlib.h 	termios.h 	termio.h 	unistd.h 	utime.h 	linux/falloc.h 	linux/fd.h 	linux/major.h 	net/if_dl.h 	netinet/in.h 	sys/disklabel.h 	sys/file.h 	sys/ioctl.h 	sys/mkdev.h 	sys/mman.h 	sys/prctl.h 	sys/queue.h 	sys/resource.h 	sys/select.h 	sys/socket.h 	sys/sockio.h 	sys/stat.h 	sys/syscall.h 	sys/sysmacros.h 	sys/time.h 	sys/types.h 	sys/un.h 	sys/wait.h
+for ac_header in  	dirent.h 	errno.h 	execinfo.h 	getopt.h 	malloc.h 	mntent.h 	paths.h 	semaphore.h 	setjmp.h 	signal.h 	stdarg.h 	stdint.h 	stdlib.h 	termios.h 	termio.h 	unistd.h 	utime.h 	linux/falloc.h 	linux/fd.h 	linux/major.h 	linux/loop.h 	net/if_dl.h 	netinet/in.h 	sys/disklabel.h 	sys/file.h 	sys/ioctl.h 	sys/mkdev.h 	sys/mman.h 	sys/prctl.h 	sys/queue.h 	sys/resource.h 	sys/select.h 	sys/socket.h 	sys/sockio.h 	sys/stat.h 	sys/syscall.h 	sys/sysmacros.h 	sys/time.h 	sys/types.h 	sys/un.h 	sys/wait.h
 do :
   as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
 ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
diff --git a/configure.in b/configure.in
index 87d73e4e..6f39cc98 100644
--- a/configure.in
+++ b/configure.in
@@ -866,6 +866,7 @@ AC_CHECK_HEADERS(m4_flatten([
 	linux/falloc.h
 	linux/fd.h
 	linux/major.h
+	linux/loop.h
 	net/if_dl.h
 	netinet/in.h
 	sys/disklabel.h
diff --git a/lib/ext2fs/ismounted.c b/lib/ext2fs/ismounted.c
index 2c1bd752..6c6ecff0 100644
--- a/lib/ext2fs/ismounted.c
+++ b/lib/ext2fs/ismounted.c
@@ -21,6 +21,13 @@
 #ifdef HAVE_LINUX_FD_H
 #include <linux/fd.h>
 #endif
+#ifdef HAVE_LINUX_LOOP_H
+#include <linux/loop.h>
+#include <sys/ioctl.h>
+#ifdef HAVE_LINUX_MAJOR_H
+#include <linux/major.h>
+#endif /* HAVE_LINUX_MAJOR_H */
+#endif /* HAVE_LINUX_LOOP_H */
 #ifdef HAVE_MNTENT_H
 #include <mntent.h>
 #endif
@@ -35,6 +42,36 @@
 #include "ext2_fs.h"
 #include "ext2fs.h"
 
+/*
+ * Check to see if a regular file is mounted.
+ * If /etc/mtab/ is a symlink of /proc/mounts, you will need the following check
+ * because the name in /proc/mounts is a loopback device not a regular file.
+ */
+static int check_loop_mounted(const char *mnt_fsname, dev_t mnt_rdev,
+				dev_t file_dev, ino_t file_ino)
+{
+#if defined(HAVE_LINUX_LOOP_H) && defined(HAVE_LINUX_MAJOR_H)
+	struct loop_info64 loopinfo;
+	int loop_fd, ret;
+
+	if (major(mnt_rdev) == LOOP_MAJOR) {
+		loop_fd = open(mnt_fsname, O_RDONLY);
+		if (loop_fd < 0)
+			return -1;
+
+		ret = ioctl(loop_fd, LOOP_GET_STATUS64, &loopinfo);
+		close(loop_fd);
+		if (ret < 0)
+			return -1;
+
+		if (file_dev == loopinfo.lo_device &&
+				file_ino == loopinfo.lo_inode)
+			return 1;
+	}
+#endif /* defined(HAVE_LINUX_LOOP_H) && defined(HAVE_LINUX_MAJOR_H) */
+	return 0;
+}
+
 #ifdef HAVE_SETMNTENT
 /*
  * Helper function which checks a file in /etc/mtab format to see if a
@@ -82,6 +119,10 @@ static errcode_t check_mntent_file(const char *mtab_file, const char *file,
 #ifndef __GNU__
 				if (file_rdev && (file_rdev == st_buf.st_rdev))
 					break;
+				if (check_loop_mounted(mnt->mnt_fsname,
+						st_buf.st_rdev, file_dev,
+						file_ino) == 1)
+					break;
 #endif	/* __GNU__ */
 			} else {
 				if (file_dev && ((file_dev == st_buf.st_dev) &&