diff --git a/fs/jfs/file.c b/fs/jfs/file.c
index 713ff4c..7f6063a 100644
--- a/fs/jfs/file.c
+++ b/fs/jfs/file.c
@@ -113,4 +113,7 @@
 	.fsync		= jfs_fsync,
 	.release	= jfs_release,
 	.unlocked_ioctl = jfs_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= jfs_compat_ioctl,
+#endif
 };
diff --git a/fs/jfs/ioctl.c b/fs/jfs/ioctl.c
index fc82ecc..a1f8e37 100644
--- a/fs/jfs/ioctl.c
+++ b/fs/jfs/ioctl.c
@@ -117,3 +117,21 @@
 	}
 }
 
+#ifdef CONFIG_COMPAT
+long jfs_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+	/* While these ioctl numbers defined with 'long' and have different
+	 * numbers than the 64bit ABI,
+	 * the actual implementation only deals with ints and is compatible.
+	 */
+	switch (cmd) {
+	case JFS_IOC_GETFLAGS32:
+		cmd = JFS_IOC_GETFLAGS;
+		break;
+	case JFS_IOC_SETFLAGS32:
+		cmd = JFS_IOC_SETFLAGS;
+		break;
+	}
+	return jfs_ioctl(filp, cmd, arg);
+}
+#endif
diff --git a/fs/jfs/jfs_dinode.h b/fs/jfs/jfs_dinode.h
index c387540..395c4c0 100644
--- a/fs/jfs/jfs_dinode.h
+++ b/fs/jfs/jfs_dinode.h
@@ -170,5 +170,7 @@
 #define JFS_IOC_GETFLAGS	_IOR('f', 1, long)
 #define JFS_IOC_SETFLAGS	_IOW('f', 2, long)
 
+#define JFS_IOC_GETFLAGS32	_IOR('f', 1, int)
+#define JFS_IOC_SETFLAGS32	_IOW('f', 2, int)
 
 #endif /*_H_JFS_DINODE */
diff --git a/fs/jfs/jfs_inode.h b/fs/jfs/jfs_inode.h
index 570fd5e..adb2faf 100644
--- a/fs/jfs/jfs_inode.h
+++ b/fs/jfs/jfs_inode.h
@@ -23,6 +23,7 @@
 extern struct inode *ialloc(struct inode *, umode_t);
 extern int jfs_fsync(struct file *, struct dentry *, int);
 extern long jfs_ioctl(struct file *, unsigned int, unsigned long);
+extern long jfs_compat_ioctl(struct file *, unsigned int, unsigned long);
 extern struct inode *jfs_iget(struct super_block *, unsigned long);
 extern int jfs_commit_inode(struct inode *, int);
 extern int jfs_write_inode(struct inode*, int);
diff --git a/fs/jfs/namei.c b/fs/jfs/namei.c
index 6440904..0ba6778 100644
--- a/fs/jfs/namei.c
+++ b/fs/jfs/namei.c
@@ -1557,6 +1557,9 @@
 	.readdir	= jfs_readdir,
 	.fsync		= jfs_fsync,
 	.unlocked_ioctl = jfs_ioctl,
+#ifdef CONFIG_COMPAT
+	.compat_ioctl	= jfs_compat_ioctl,
+#endif
 };
 
 static int jfs_ci_hash(struct dentry *dir, struct qstr *this)