bcachefs: Some compression improvements

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In __bio_map_or_bounce(), the check for if the bio is physically
contiguous is improved; it's now more readable and handles multi page
but contiguous bios.

Also when decompressing, we were doing a redundant memcpy in the case
where we were able to use vmap to map a bio contigiously.

Signed-off-by: Kent Overstreet <kent.overstreet@gmail.com>
Signed-off-by: Kent Overstreet <kent.overstreet@linux.dev>

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Kent Overstreet 2020-05-06 15:37:04 -04:00 • committed by Kent Overstreet

parent bc970cecd8

commit c4dd7871ef

1 changed files with 37 additions and 16 deletions

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fs/bcachefs/compress.c

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