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| author | Christoph Hellwig <hch@lst.de> | 2022-01-24 10:11:06 +0100 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2022-02-02 07:49:59 -0700 |
| commit | 49add4966d79244013fce35f95c6833fae82b8b1 (patch) | |
| tree | 915dec99a236142c08e4b0ac94346f178d467987 /block/fops.c | |
| parent | 07888c665b405b1cd3577ddebfeb74f4717a84c4 (diff) | |
| download | lwn-49add4966d79244013fce35f95c6833fae82b8b1.tar.gz lwn-49add4966d79244013fce35f95c6833fae82b8b1.zip | |
block: pass a block_device and opf to bio_init
Pass the block_device that we plan to use this bio for and the
operation to bio_init to optimize the assignment. A NULL block_device
can be passed, both for the passthrough case on a raw request_queue and
to temporarily avoid refactoring some nasty code.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Chaitanya Kulkarni <kch@nvidia.com>
Link: https://lore.kernel.org/r/20220124091107.642561-19-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'block/fops.c')
| -rw-r--r-- | block/fops.c | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/block/fops.c b/block/fops.c index c68359684773..3696665e586a 100644 --- a/block/fops.c +++ b/block/fops.c @@ -75,8 +75,13 @@ static ssize_t __blkdev_direct_IO_simple(struct kiocb *iocb, return -ENOMEM; } - bio_init(&bio, vecs, nr_pages); - bio_set_dev(&bio, bdev); + if (iov_iter_rw(iter) == READ) { + bio_init(&bio, bdev, vecs, nr_pages, REQ_OP_READ); + if (iter_is_iovec(iter)) + should_dirty = true; + } else { + bio_init(&bio, bdev, vecs, nr_pages, dio_bio_write_op(iocb)); + } bio.bi_iter.bi_sector = pos >> SECTOR_SHIFT; bio.bi_write_hint = iocb->ki_hint; bio.bi_private = current; @@ -88,14 +93,9 @@ static ssize_t __blkdev_direct_IO_simple(struct kiocb *iocb, goto out; ret = bio.bi_iter.bi_size; - if (iov_iter_rw(iter) == READ) { - bio.bi_opf = REQ_OP_READ; - if (iter_is_iovec(iter)) - should_dirty = true; - } else { - bio.bi_opf = dio_bio_write_op(iocb); + if (iov_iter_rw(iter) == WRITE) task_io_account_write(ret); - } + if (iocb->ki_flags & IOCB_NOWAIT) bio.bi_opf |= REQ_NOWAIT; if (iocb->ki_flags & IOCB_HIPRI) |