请问怎么单独编译ext3 or ext2

kgd7558

[root@localhost linux-2.6.17.13]# pwd
/usr/src/linux-2.6.17.13
[root@localhost linux-2.6.17.13]# make SUBDIRS=fs/ext3/ modules
  CC [M]  fs/ext3/balloc.o
  CC [M]  fs/ext3/bitmap.o
  CC [M]  fs/ext3/dir.o
  CC [M]  fs/ext3/file.o
  CC [M]  fs/ext3/fsync.o
  CC [M]  fs/ext3/ialloc.o
  CC [M]  fs/ext3/inode.o
  CC [M]  fs/ext3/ioctl.o
  CC [M]  fs/ext3/namei.o
  CC [M]  fs/ext3/super.o
  CC [M]  fs/ext3/symlink.o
  CC [M]  fs/ext3/hash.o
  CC [M]  fs/ext3/resize.o
  CC [M]  fs/ext3/xattr.o
  CC [M]  fs/ext3/xattr_user.o
  CC [M]  fs/ext3/xattr_trusted.o
  CC [M]  fs/ext3/acl.o
  CC [M]  fs/ext3/xattr_security.o
  LD [M]  fs/ext3/ext3.o
  Building modules, stage 2.
  MODPOST
  CC      fs/ext3/ext3.mod.o
  LD [M]  fs/ext3/ext3.ko