[PATCH v2 0/4] Btrfs-progs: add --fields option to subvol list

[Stefan Behrens <sbehrens@giantdisaster.de>]

"btrfs subvolume list" gets a new option "--fields=..." which allows
to specify which pieces of information about subvolumes shall be
printed. This is necessary because this commit also adds all the so
far missing items from the root_item like the received UUID, all
generation values and all time values.

The parameters to the "--fields" option is a list of items to print:
--fields=gen,dirid,uuid,puuid,ruuid,cgen,ogen,sgen,rgen,ctime,otime,
         stime,rtime,path,rootid,parent,topid,all

v1 -> v2:
- On request of Wang Shilong, the commit is now splitted into several
  small commits.

Stefan Behrens (4):
  Btrfs-progs: cleanup in btrfs-list.c
  Btrfs-progs: make the btrfs-list output more compact
  Btrfs-progs: add more subvol fields to btrfs-list
  Btrfs-progs: enhance 'btrfs subvolume list'

 btrfs-list.c     | 422 +++++++++++++++++++++++++++++++++++--------------------
 btrfs-list.h     |  40 +++++-
 cmds-subvolume.c |  57 +++-----
 man/btrfs.8.in   |  19 +--
 4 files changed, 332 insertions(+), 206 deletions(-)

-- 
1.8.2.1