[PATCH 00/11] btrfs: move the space_info code out of extent-tree.c

[Josef Bacik <josef@toxicpanda.com>]

This is the first pass at making extent-tree.c much smaller.  I've purposefully
done no other cleanups or changes.  The places where I needed to modify callers
were done in separate patches.  The only time I moved and changed callers in
large chunks was the moving of reserve_metadata_bytes out of extent-tree.c, and
that was just to rename the users of reserve_metadata_bytes to
btrfs_reserve_metadata_bytes.

There is 0 functional change in this series.  The next step is to move the other
space reservation code that is specific to delayed_refs, inodes, etc.  But I
wanted to start with this to make sure we're all onboard with this approach
before I do other things.

The diffstat for the whole series is the following

 fs/btrfs/Makefile           |    2 +-
 fs/btrfs/ctree.h            |   97 +---
 fs/btrfs/extent-tree.c      | 1277 +++----------------------------------------
 fs/btrfs/free-space-cache.c |    1 +
 fs/btrfs/ioctl.c            |    1 +
 fs/btrfs/space-info.c       | 1103 +++++++++++++++++++++++++++++++++++++
 fs/btrfs/space-info.h       |  135 +++++
 fs/btrfs/super.c            |    1 +
 fs/btrfs/sysfs.c            |    1 +
 fs/btrfs/volumes.c          |    1 +
 10 files changed, 1343 insertions(+), 1276 deletions(-)

Thanks,

Josef