[PATCH v2 0/3] btrfs: optimize the argument list for submit_extent_page()

[Qu Wenruo <wqu@suse.com>]

[Changelog]
v2:
- Add a patch to remove stale argument from the comments of
  submit_extent_page()

- Update the comment of submit_extent_page() to reflect the new arugment
  list

The argument list of submit_extent_page() is already a little long.

Although we have things like page, pg_len, pg_off which can not be saved
anyway, we can still improve the situation by:

- Update the stale comment of submit_extent_page()
  Done by the first patch.

- Make sure @page, @pg_len, @pg_off are always batched together
  Just like bio_add_page().

  This is done by the second page, just switching the position between
  @page and @disk_bytenr.

- Move @end_io_func arugment into btrfs_bio_ctrl structure.

Qu Wenruo (3):
  btrfs: update the comment for submit_extent_page()
  btrfs: switch the page and disk_bytenr argument position for
    submit_extent_page()
  btrfs: move end_io_func argument to btrfs_bio_ctrl structure

 fs/btrfs/extent_io.c | 66 +++++++++++++++++++++++++-------------------
 1 file changed, 37 insertions(+), 29 deletions(-)

-- 
2.37.3