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From: David Sterba <dsterba@suse.com>
To: linux-btrfs@vger.kernel.org
Cc: David Sterba <dsterba@suse.com>
Subject: [PATCH 0/6] Block group structure cleanups
Date: Wed, 23 Oct 2019 18:48:07 +0200	[thread overview]
Message-ID: <cover.1571848791.git.dsterba@suse.com> (raw)

The block group cache structure has two embedded members that belong to
the on-disk format but were used for the in-memory structures. It's been
like that forever and I wonder why nobody was bothered by that. Switch
to normal members and rename a few things on along the way.

The size of block_group_cache is down from 528 to 504 so it should not
fit better to slab pages. Further shrinkage is possible.

David Sterba (6):
  btrfs: move block_group_item::used to block group
  btrfs: move block_group_item::flags to block group
  btrfs: remove embedded block_group_cache::item
  btrfs: rename block_group_item on-stack accessors to follow naming
  btrfs: rename extent buffer block group item accessors
  btrfs: add dedicated members for start and length of a block group

 fs/btrfs/block-group.c                 | 191 +++++++++++++------------
 fs/btrfs/block-group.h                 |   5 +-
 fs/btrfs/ctree.h                       |  12 +-
 fs/btrfs/extent-tree.c                 |  31 ++--
 fs/btrfs/free-space-cache.c            |  39 +++--
 fs/btrfs/free-space-tree.c             |  83 ++++++-----
 fs/btrfs/ioctl.c                       |   5 +-
 fs/btrfs/print-tree.c                  |   6 +-
 fs/btrfs/reada.c                       |   4 +-
 fs/btrfs/relocation.c                  |  18 +--
 fs/btrfs/scrub.c                       |  10 +-
 fs/btrfs/space-info.c                  |   3 +-
 fs/btrfs/sysfs.c                       |   4 +-
 fs/btrfs/tests/btrfs-tests.c           |   5 +-
 fs/btrfs/tests/free-space-tree-tests.c |  75 +++++-----
 fs/btrfs/tree-checker.c                |  10 +-
 fs/btrfs/volumes.c                     |  19 ++-
 include/trace/events/btrfs.h           |  21 ++-
 18 files changed, 264 insertions(+), 277 deletions(-)

-- 
2.23.0


             reply	other threads:[~2019-10-23 16:48 UTC|newest]

Thread overview: 16+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-23 16:48 David Sterba [this message]
2019-10-23 16:48 ` [PATCH 1/6] btrfs: move block_group_item::used to block group David Sterba
2019-10-24  8:22   ` Johannes Thumshirn
2019-10-23 16:48 ` [PATCH 2/6] btrfs: move block_group_item::flags " David Sterba
2019-10-24  8:30   ` Johannes Thumshirn
2019-10-23 16:48 ` [PATCH 3/6] btrfs: remove embedded block_group_cache::item David Sterba
2019-10-24  8:33   ` Johannes Thumshirn
2019-10-23 16:48 ` [PATCH 4/6] btrfs: rename block_group_item on-stack accessors to follow naming David Sterba
2019-10-24  8:34   ` Johannes Thumshirn
2019-10-23 16:48 ` [PATCH 5/6] btrfs: rename extent buffer block group item accessors David Sterba
2019-10-24  8:35   ` Johannes Thumshirn
2019-10-23 16:48 ` [PATCH 6/6] btrfs: add dedicated members for start and length of a block group David Sterba
2019-10-24  9:15   ` Johannes Thumshirn
2019-10-24 12:09   ` Nikolay Borisov
2019-10-24  1:48 ` [PATCH 0/6] Block group structure cleanups Qu Wenruo
2019-10-24 12:09 ` Nikolay Borisov

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