diff --git a/fsr/xfs_fsr.c b/fsr/xfs_fsr.c
index 6f00b41..5b4af53 100644
--- fsr/xfs_fsr.c
+++ fsr/xfs_fsr.c
@@ -44,6 +44,10 @@
 #define _PATH_FSRLAST		"/var/tmp/.fsrlast_xfs"
 #define _PATH_PROC_MOUNTS	"/proc/mounts"
 
+#ifndef _PATH_MOUNTED
+#define _PATH_MOUNTED MOUNTED
+#endif
+
 
 char *progname;
 
diff --git a/include/platform_defs.h.in b/include/platform_defs.h.in
index ac260bc..0e7fccf 100644
--- include/platform_defs.h.in
+++ include/platform_defs.h.in
@@ -68,6 +68,32 @@ typedef __u64	__bitwise	__be64;
 
 typedef struct filldir		filldir_t;
 
+#ifndef __uint8_t
+#define __uint8_t uint8_t
+#endif
+#ifndef __uint16_t
+#define __uint16_t uint16_t
+#endif
+#ifndef __uint32_t
+#define __uint32_t uint32_t
+#endif
+#ifndef __uint64_t
+#define __uint64_t uint64_t
+#endif
+
+#ifndef __int8_t
+#define __int8_t int8_t
+#endif
+#ifndef __int16_t
+#define __int16_t int16_t
+#endif
+#ifndef __int32_t
+#define __int32_t int32_t
+#endif
+#ifndef __int64_t
+#define __int64_t int64_t
+#endif
+
 #if defined(__linux__)
 #include <xfs/linux.h>
 #elif defined(__FreeBSD__)
diff --git a/libhandle/handle.c b/libhandle/handle.c
index 9a232fa..1db7772 100644
--- libhandle/handle.c
+++ libhandle/handle.c
@@ -20,6 +20,9 @@
 #include <xfs/xfs.h>
 #include <xfs/handle.h>
 #include <xfs/parent.h>
+#if defined(__linux__)
+#include <linux/limits.h>
+#endif
 
 /* just pick a value we know is more than big enough */
 #define	MAXHANSIZ	64
diff --git a/libhandle/jdm.c b/libhandle/jdm.c
index 070407b..8dd6322 100644
--- libhandle/jdm.c
+++ libhandle/jdm.c
@@ -20,6 +20,9 @@
 #include <xfs/handle.h>
 #include <xfs/jdm.h>
 #include <xfs/parent.h>
+#if defined(__linux__)
+#include <linux/limits.h>
+#endif
 
 /* internal fshandle - typecast to a void for external use */
 #define FSHANDLE_SZ		8
diff --git a/libxfs/linux.c b/libxfs/linux.c
index 2e07d54..4075786 100644
--- libxfs/linux.c
+++ libxfs/linux.c
@@ -16,12 +16,9 @@
  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  */
 
-#define ustat __kernel_ustat
 #include <xfs/libxfs.h>
 #include <mntent.h>
 #include <sys/stat.h>
-#undef ustat
-#include <sys/ustat.h>
 #include <sys/mount.h>
 #include <sys/ioctl.h>
 #include <sys/sysinfo.h>
@@ -49,9 +46,12 @@ static int max_block_alignment;
 int
 platform_check_ismounted(char *name, char *block, struct stat64 *s, int verbose)
 {
-	/* Pad ust; pre-2.6.28 linux copies out too much in 32bit compat mode */
-	struct ustat	ust[2];
 	struct stat64	st;
+	FILE		*f;
+	struct stat64	mst;
+	struct mntent	*mnt;
+	char		mounts[MAXPATHLEN];
+	int		ismounted = 0;
 
 	if (!s) {
 		if (stat64(block, &st) < 0)
@@ -61,14 +61,25 @@ platform_check_ismounted(char *name, char *block, struct stat64 *s, int verbose)
 		s = &st;
 	}
 
-	if (ustat(s->st_rdev, ust) >= 0) {
+	strcpy(mounts, (!access(PROC_MOUNTED, R_OK)) ? PROC_MOUNTED : MOUNTED);
+	if ((f = setmntent(mounts, "r")) == NULL)
+		return 0;
+
+	while ((mnt = getmntent(f)) != NULL) {
+		if (stat64(mnt->mnt_dir, &mst) < 0)
+			continue;
+		if (mst.st_dev != s->st_rdev)
+			continue;
+
 		if (verbose)
 			fprintf(stderr,
 				_("%s: %s contains a mounted filesystem\n"),
 				progname, name);
-		return 1;
+		ismounted = 1;
+		break;
 	}
-	return 0;
+	endmntent(f);
+	return ismounted;
 }
 
 int
--- include/linux.h.orig	2014-11-10 15:20:54.601136271 +0100
+++ include/linux.h	2014-11-10 15:21:35.905541676 +0100
@@ -28,6 +28,7 @@
 #include <getopt.h>
 #include <endian.h>
 #include <stdbool.h>
+#include <linux/limits.h>	/* XATTR_SIZE_MAX */
 
 static __inline__ int xfsctl(const char *path, int fd, int cmd, void *p)
 {
@@ -138,6 +139,10 @@ platform_discard_blocks(int fd, uint64_t
 #define EFSCORRUPTED	EUCLEAN	/* Filesystem is corrupted */
 #define EFSBADCRC	EBADMSG	/* Bad CRC detected */
 
+#ifndef loff_t
+#define loff_t 	off_t
+#endif
+
 typedef loff_t		xfs_off_t;
 typedef __uint64_t	xfs_ino_t;
 typedef __uint32_t	xfs_dev_t;
