[PATCH 0/2] btrfs: properly enable compressed readahead for bs < ps and large folio cases

[Qu Wenruo <wqu@suse.com>]

Compressed data readahead is disabled for bs < ps cases, but it has
never taken large folios into the consideration.

And that unexpectedly enables compressed data readahead for large
folios, which should go through the same subpage routine.

This means for real bs < ps cases compressed data read is disabled, but
still enabled for bs == ps with large folios.

This small series will properly enable the compressed readahead for both
bs < ps and large folios cases, mostly by simply remove the unnecessary
checks.

Then since we're here, also update the function name and comments to
reflect that we're already using folio interface, not the old page
interface.

Qu Wenruo (2):
  btrfs: enable cross-folio readahead for bs < ps and large folio cases
  btrfs: refresh add_ra_bio_pages() to indicate it's using folios

 fs/btrfs/compression.c | 67 +++++++++++++++---------------------------
 1 file changed, 24 insertions(+), 43 deletions(-)

-- 
2.53.0