[PATCH 0/2] btrfs: fix unpaired compr folio allocation/freeing

[Qu Wenruo <wqu@suse.com>]

With the recent *_compressed_bio() rework, we're using compressed_bio
everywhere for reads/writes (including regular and encoded).

However this requires us to allocate/free folios using
btrfs_alloc_compr_folio() and btrfs_free_compr_folio().

Not using the later to release a folio allocated by
btrfs_alloc_compr_folio() can screw up the LRU list.

Fix the unpaired calls as a hot fix.

For the long run, I'd like to remove btrfs_(alloc|free)_compr_folios()
with regular folio_(alloc|put)() instead.
As I do not think the compr pool is that helpful compared to the extra
maintanance needed.

Qu Wenruo (2):
  btrfs: fix the incorrect freeing of a compression folio in
    btrfs_submit_compressed_read()
  btrfs: fix the incorrect freeing of a compression folio in
    btrfs_do_encoded_write()

 fs/btrfs/compression.c | 2 +-
 fs/btrfs/inode.c       | 4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

-- 
2.53.0