[PATCH 0/4] Cleanup alloc_reserved_tree_block signature

[Nikolay Borisov <nborisov@suse.com>]

At the moment alloc_reserved_tree_block takes 8 friggin arguments. The irony 
is that all of those are really derived from 3 structures. This series ends up 
reducing the arguments to 3. As a result some code, private to alloc_reserved_tree_block
is moved from run_delayed_tree_ref. Patch 1 removes the fs_info argument, 
Patch 2 replaces all arguments derived from btrfs_delayed_ref_node with the 
nodes itself, Patch 3 replaces the last 2 arguments with btrfs_delayed_extent_op
and finally, Patch 4 simplifies the code a bit by removing one extra check.

All in all this doesn't provide any functional changes but makes the code 
easier to follow. Also it has survived 2 xfstest runs. 

Nikolay Borisov (4):
  btrfs: Remove fs_info argument from alloc_reserved_tree_block
  btrfs: Simplify alloc_reserved_tree_block interface
  btrfs: Pass btrfs_delayed_extent_op to alloc_reserved_tree_block
  btrfs: Streamline shared ref check in alloc_reserved_tree_block

 fs/btrfs/extent-tree.c | 76 ++++++++++++++++++++++++--------------------------
 1 file changed, 37 insertions(+), 39 deletions(-)

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2.7.4