Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ryusuke/nilfs2: (23 commits)
  nilfs2: disallow remount of snapshot from/to a regular mount
  nilfs2: use huge_encode_dev/huge_decode_dev
  nilfs2: update comment on deactivate_super at nilfs_get_sb
  nilfs2: replace MS_VERBOSE with MS_SILENT
  nilfs2: add missing initialization of s_mode
  nilfs2: fix misuse of open_bdev_exclusive/close_bdev_exclusive
  nilfs2: enlarge s_volume_name member in nilfs_super_block
  nilfs2: use checkpoint number instead of timestamp to select super block
  nilfs2: add missing endian conversion on super block magic number
  nilfs2: make nilfs_sc_*_ops static
  nilfs2: add kernel doc comments to persistent object allocator functions
  nilfs2: change sc_timer from a pointer to an embedded one in struct nilfs_sc_info
  nilfs2: remove nilfs_segctor_init() in segment.c
  nilfs2: insert checkpoint number in segment summary header
  nilfs2: add a print message after loading nilfs2
  nilfs2: cleanup multi kmem_cache_{create,destroy} code
  nilfs2: move out checksum routines to segment buffer code
  nilfs2: move pointer to super root block into logs
  nilfs2: change default of 'errors' mount option to 'remount-ro' mode
  nilfs2: Combine nilfs_btree_release_path() and nilfs_btree_free_path()
  ...