[PATCH v2 0/7] btrfs: fix periodic reclaim condition with some cleanup

[Sun YangKai <sunk67188@gmail.com>]

This series eliminates wasteful periodic reclaim operations that were occurring
when already failed to reclaim any new space, and includes several preparatory
cleanups.

Patch 1 fixes the core issue.
Patch 2-7 are cleanup with no functional change.
Details are in commit messages.

Changes from v1:

- First fix then cleanup, adviced by Qu Wenruo <quwenruo.btrfs@gmx.com>

Sun YangKai (7):
  btrfs: fix periodic reclaim condition
  btrfs: use u8 for reclaim threshold type
  btrfs: clarify reclaim sweep control flow
  btrfs: change block group reclaim_mark to bool
  btrfs: reorder btrfs_block_group members to reduce struct size
  btrfs: use proper types for btrfs_block_group fields
  btrfs: consolidate reclaim readiness checks in btrfs_should_reclaim()

 fs/btrfs/block-group.c | 29 ++++++++++-----------
 fs/btrfs/block-group.h | 22 ++++++++++------
 fs/btrfs/space-info.c  | 58 ++++++++++++++++++++----------------------
 fs/btrfs/space-info.h  | 40 ++++++++++++++++++-----------
 fs/btrfs/sysfs.c       |  3 ++-
 5 files changed, 82 insertions(+), 70 deletions(-)

-- 
2.51.2