f2fs: some minor fix and clean up

Gu Zheng (5):
f2fs: update start nid once each circle
f2fs: remove the unused ctor argument of f2fs_kmem_cache_create()
f2fs: format segment_info's show for better legibility
f2fs: optimize restore_node_summary slightly
f2fs: add a wait queue to avoid unnecessary build_free_nid

 fs/f2fs/checkpoint.c |    4 +-
 fs/f2fs/f2fs.h       |    5 ++-
 fs/f2fs/gc.c         |    2 +-
 fs/f2fs/node.c       |   64 ++++++++++++++++++++++++++++----------------------
 fs/f2fs/recovery.c   |    2 +-
 fs/f2fs/segment.c    |    9 ++++--
 fs/f2fs/super.c      |    9 ++++---
 7 files changed, 54 insertions(+), 41 deletions(-)

1.7.7