btrfs: convert read_key_bytes() to take a folio

The old page API is being gradually replaced and converted to use folio
to improve code readability and avoid repeated conversion between page
and folio. Moreover, use kmap_local_folio() instead of kmap_local_page(),
which is more consistent with folio usage.

Signed-off-by: Li Zetao <lizetao1@huawei.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
Li Zetao 2024-08-29 02:28:59 +08:00 • committed by David Sterba
commit 884937793d