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| author |   Ming Lei <tom.leiming@gmail.com> | 2016-11-22 08:57:21 -0700 |
|---|---|---|
| committer |   Jens Axboe <axboe@fb.com> | 2016-11-22 08:57:21 -0700 |
| commit | 3a83f4677539bce8eaa2bca9ee9c20e172d7ab04 (patch) | |
| tree | edb5ffeed2c07c342bd6d9adb0180fab472c1666 /drivers/md/bcache/journal.c | |
| parent | block_dev: get rid of blksize bits calculation (diff) | |
| download | linux-dev-3a83f4677539bce8eaa2bca9ee9c20e172d7ab04.tar.xz linux-dev-3a83f4677539bce8eaa2bca9ee9c20e172d7ab04.zip | |
block: bio: pass bvec table to bio_init()
Some drivers often use external bvec table, so introduce
this helper for this case. It is always safe to access the
bio->bi_io_vec in this way for this case.
After converting to this usage, it will becomes a bit easier
to evaluate the remaining direct access to bio->bi_io_vec,
so it can help to prepare for the following multipage bvec
support.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Fixed up the new O_DIRECT cases.
Signed-off-by: Jens Axboe <axboe@fb.com>
Diffstat (limited to 'drivers/md/bcache/journal.c')
| -rw-r--r-- | drivers/md/bcache/journal.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/md/bcache/journal.c b/drivers/md/bcache/journal.c index 6925023e12d4..1198e53d5670 100644 --- a/drivers/md/bcache/journal.c +++ b/drivers/md/bcache/journal.c @@ -448,13 +448,11 @@ static void do_journal_discard(struct cache *ca) atomic_set(&ja->discard_in_flight, DISCARD_IN_FLIGHT); - bio_init(bio); + bio_init(bio, bio->bi_inline_vecs, 1); bio_set_op_attrs(bio, REQ_OP_DISCARD, 0); bio->bi_iter.bi_sector = bucket_to_sector(ca->set, ca->sb.d[ja->discard_idx]); bio->bi_bdev = ca->bdev; - bio->bi_max_vecs = 1; - bio->bi_io_vec = bio->bi_inline_vecs; bio->bi_iter.bi_size = bucket_bytes(ca); bio->bi_end_io = journal_discard_endio; |