| commit | b41c9b0266e8370033a7799f6806bfc70b7fd75f | [log] [tgz] |
|---|---|---|
| author | Eric Wheeler <bcache@linux.ewheeler.net> | Fri Oct 13 16:35:33 2017 -0700 |
| committer | Jens Axboe <axboe@kernel.dk> | Mon Oct 16 09:07:26 2017 -0600 |
| tree | 0c2aa53a2c267290dae162b6573ab0f74d73194d | |
| parent | e89d67596e202119ea846cc997f4cf75cb284490 [diff] |
bcache: update bio->bi_opf bypass/writeback REQ_ flag hints
Flag for bypass if the IO is for read-ahead or background, unless the
read-ahead request is for metadata (eg, from gfs2).
Bypass if:
bio->bi_opf & (REQ_RAHEAD|REQ_BACKGROUND) &&
!(bio->bi_opf & REQ_META))
Writeback if:
op_is_sync(bio->bi_opf) ||
bio->bi_opf & (REQ_META|REQ_PRIO)
Signed-off-by: Eric Wheeler <bcache@linux.ewheeler.net>
Reviewed-by: Coly Li <colyli@suse.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>