diff --git a/quota-3.15-ext4support.patch b/quota-3.15-ext4support.patch
new file mode 100644
index 0000000..82caf69
--- /dev/null
+++ b/quota-3.15-ext4support.patch
@@ -0,0 +1,24 @@
+diff -urNp quota-tools-orig/mntopt.h quota-tools/mntopt.h
+--- quota-tools-orig/mntopt.h	2007-08-22 13:26:55.000000000 +0200
++++ quota-tools/mntopt.h	2008-10-30 09:13:35.000000000 +0100
+@@ -6,7 +6,8 @@
+ /* filesystem type */
+ #define MNTTYPE_EXT2		"ext2"	/* 2nd Extended file system */
+ #define MNTTYPE_EXT3		"ext3"	/* ext2 + journaling */
+-#define MNTTYPE_EXT4		"ext4dev"	/* ext4 filesystem */
++#define MNTTYPE_EXT4		"ext4"	/* ext4 filesystem */
++#define MNTTYPE_EXT4DEV "ext4dev" /* ext4dev filesystem */
+ #define MNTTYPE_MINIX		"minix"	/* MINIX file system */
+ #define MNTTYPE_UFS		"ufs"	/* UNIX file system */
+ #define MNTTYPE_UDF		"udf"	/* OSTA UDF file system */
+diff -urNp quota-tools-orig/quotasys.c quota-tools/quotasys.c
+--- quota-tools-orig/quotasys.c	2008-10-30 09:11:12.000000000 +0100
++++ quota-tools/quotasys.c	2008-10-30 09:14:49.000000000 +0100
+@@ -63,6 +63,7 @@ static int correct_fstype(char *type)
+ 		if (!strcmp(type, MNTTYPE_EXT2) ||
+ 		    !strcmp(type, MNTTYPE_EXT3) ||
+ 		    !strcmp(type, MNTTYPE_EXT4) ||
++        !strcmp(type, MNTTYPE_EXT4DEV) ||
+ 		    !strcmp(type, MNTTYPE_JFS) ||
+ 		    !strcmp(type, MNTTYPE_MINIX) ||
+ 		    !strcmp(type, MNTTYPE_UFS) ||
diff --git a/quota.spec b/quota.spec
index 236dec6..64fec09 100644
--- a/quota.spec
+++ b/quota.spec
@@ -5,7 +5,7 @@ Name: quota
 Summary: System administration tools for monitoring users' disk usage
 Epoch: 1
 Version: 3.15
-Release: 7%{?dist}
+Release: 8%{?dist}
 License: BSD and GPLv2+
 URL: http://sourceforge.net/projects/linuxquota/
 Group: System Environment/Base
@@ -21,6 +21,7 @@ Patch3: quota-3.06-pie.patch
 Patch4: quota-3.13-wrong-ports.patch
 Patch5: quota-3.15-manpages.patch
 Patch6: quota-3.15-helpoption.patch
+Patch7: quota-3.15-ext4support.patch
 
 %description
 The quota package contains system administration tools for monitoring
@@ -38,6 +39,7 @@ and limiting user and or group disk usage per filesystem.
 %patch4 -p1
 %patch5 -p1
 %patch6 -p1
+%patch7 -p1 -b .ext4
 
 
 %build
@@ -90,6 +92,10 @@ rm -rf %{buildroot}
 
 
 %changelog
+* Thu Nov 10 2008 Ondrej Vasik <ovasik@redhat.com> 1:3.15-8
+- fix implementation of ext4 support
+  (by Mingming Cao, #472050)
+
 * Tue Aug 05 2008 Ondrej Vasik <ovasik@redhat.com> 3.15-7
 - Add support for -h option (do not show invalid option
   error) at edquota,setquota and quota (#457898)