[PATCH 0/8] btrfs: inode management and memory consumption improvements

[fdmanana@kernel.org]

From: Filipe Manana <fdmanana@suse.com>

Some inode related improvements, to use an xarray to track open inodes per
root instead of a red black tree, reduce lock contention and use less memory
per btrfs inode, so now we can fit 4 inodes per 4K page instead of 3.
More details in the the change logs.

Filipe Manana (8):
  btrfs: use an xarray to track open inodes in a root
  btrfs: preallocate inodes xarray entry to avoid transaction abort
  btrfs: reduce nesting and deduplicate error handling at btrfs_iget_path()
  btrfs: remove inode_lock from struct btrfs_root and use xarray locks
  btrfs: unify index_cnt and csum_bytes from struct btrfs_inode
  btrfs: don't allocate file extent tree for non regular files
  btrfs: remove location key from struct btrfs_inode
  btrfs: remove objectid from struct btrfs_inode on 64 bits platforms

 fs/btrfs/btrfs_inode.h       | 130 +++++++++++-----
 fs/btrfs/ctree.h             |   8 +-
 fs/btrfs/delayed-inode.c     |  27 ++--
 fs/btrfs/disk-io.c           |  12 +-
 fs/btrfs/export.c            |   2 +-
 fs/btrfs/file-item.c         |  13 +-
 fs/btrfs/inode.c             | 286 +++++++++++++++++------------------
 fs/btrfs/ioctl.c             |   8 +-
 fs/btrfs/relocation.c        |  12 +-
 fs/btrfs/tests/btrfs-tests.c |   5 +-
 fs/btrfs/tree-log.c          |   9 +-
 11 files changed, 285 insertions(+), 227 deletions(-)

-- 
2.43.0