quota-tools has support for ext4dev filesystem already (at least in v3.16) . But it seems still missing the ext4 filesystem support which prevent quotacheck recognizes the ext4 filesystem. The following patch fixed it for me. Signed-off-by: Mingming Cao <cmm@xxxxxxxxxx> Index: quota-tools/mntopt.h =================================================================== --- quota-tools.orig/mntopt.h 2007-08-22 04:26:55.000000000 -0700 +++ quota-tools/mntopt.h 2008-10-29 16:37:57.000000000 -0700 @@ -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 */ Index: quota-tools/quotacheck.c =================================================================== --- quota-tools.orig/quotacheck.c 2008-10-29 16:38:50.000000000 -0700 +++ quota-tools/quotacheck.c 2008-10-29 16:39:09.000000000 -0700 @@ -1064,6 +1064,7 @@ static void check_all(void) !hasmntopt(mnt, MNTOPT_GRPJQUOTA) && !warned && (!strcmp(mnt->mnt_type, MNTTYPE_EXT3) || !strcmp(mnt->mnt_type, MNTTYPE_EXT4) || + !strcmp(mnt->mnt_type, MNTTYPE_EXT4DEV) || !strcmp(mnt->mnt_type, MNTTYPE_REISER))) { struct utsname stats; Index: quota-tools/quotasys.c =================================================================== --- quota-tools.orig/quotasys.c 2008-10-29 16:39:45.000000000 -0700 +++ quota-tools/quotasys.c 2008-10-29 16:40:01.000000000 -0700 @@ -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) || -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html