Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  quota: Pass information that quota is stored in system file to userspace
  ext2: protect inode changes in the SETVERSION and SETFLAGS ioctls
  jbd: Issue cache flush after checkpointing