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btrfs: lift bio_set_dev from bio allocation helpers 

The block device is passed around for the only purpose to set it in new
bios. Move the assignment one level up. This is a preparatory patch for
further bdev cleanups.

Signed-off-by: David Sterba <dsterba@suse.com>
This commit is contained in:
David Sterba 2019-06-18 20:00:16 +02:00
parent e1ea2beee2
commit e749af443f
3 changed files with 12 additions and 8 deletions
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12
fs/btrfs/compression.c
View File

@ -340,7 +340,8 @@ blk_status_t btrfs_submit_compressed_write(struct inode *inode, u64 start,
bdev = fs_info->fs_devices->latest_bdev;
bio = btrfs_bio_alloc(bdev, first_byte);
bio = btrfs_bio_alloc(first_byte);
bio_set_dev(bio, bdev);
bio->bi_opf = REQ_OP_WRITE | write_flags;
bio->bi_private = cb;
bio->bi_end_io = end_compressed_bio_write;
@ -382,7 +383,8 @@ blk_status_t btrfs_submit_compressed_write(struct inode *inode, u64 start,
bio_endio(bio);
}
bio = btrfs_bio_alloc(bdev, first_byte);
bio = btrfs_bio_alloc(first_byte);
bio_set_dev(bio, bdev);
bio->bi_opf = REQ_OP_WRITE | write_flags;
bio->bi_private = cb;
bio->bi_end_io = end_compressed_bio_write;
@ -620,7 +622,8 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
/* include any pages we added in add_ra-bio_pages */
cb->len = bio->bi_iter.bi_size;
comp_bio = btrfs_bio_alloc(bdev, cur_disk_byte);
comp_bio = btrfs_bio_alloc(cur_disk_byte);
bio_set_dev(comp_bio, bdev);
comp_bio->bi_opf = REQ_OP_READ;
comp_bio->bi_private = cb;
comp_bio->bi_end_io = end_compressed_bio_read;
@ -670,7 +673,8 @@ blk_status_t btrfs_submit_compressed_read(struct inode *inode, struct bio *bio,
bio_endio(comp_bio);
}
comp_bio = btrfs_bio_alloc(bdev, cur_disk_byte);
comp_bio = btrfs_bio_alloc(cur_disk_byte);
bio_set_dev(comp_bio, bdev);
comp_bio->bi_opf = REQ_OP_READ;
comp_bio->bi_private = cb;
comp_bio->bi_end_io = end_compressed_bio_read;

6
fs/btrfs/extent_io.c
View File

@ -2861,12 +2861,11 @@ static inline void btrfs_io_bio_init(struct btrfs_io_bio *btrfs_bio)
* never fail. We're returning a bio right now but you can call btrfs_io_bio
* for the appropriate container_of magic
*/
struct bio *btrfs_bio_alloc(struct block_device *bdev, u64 first_byte)
struct bio *btrfs_bio_alloc(u64 first_byte)
{
struct bio *bio;
bio = bio_alloc_bioset(GFP_NOFS, BIO_MAX_PAGES, &btrfs_bioset);
bio_set_dev(bio, bdev);
bio->bi_iter.bi_sector = first_byte >> 9;
btrfs_io_bio_init(btrfs_io_bio(bio));
return bio;
@ -2977,7 +2976,8 @@ static int submit_extent_page(unsigned int opf, struct extent_io_tree *tree,
}
}
bio = btrfs_bio_alloc(bdev, offset);
bio = btrfs_bio_alloc(offset);
bio_set_dev(bio, bdev);
bio_add_page(bio, page, page_size, pg_offset);
bio->bi_end_io = end_io_func;
bio->bi_private = tree;

2
fs/btrfs/extent_io.h
View File

@ -497,7 +497,7 @@ void extent_clear_unlock_delalloc(struct inode *inode, u64 start, u64 end,
u64 delalloc_end, struct page *locked_page,
unsigned bits_to_clear,
unsigned long page_ops);
struct bio *btrfs_bio_alloc(struct block_device *bdev, u64 first_byte);
struct bio *btrfs_bio_alloc(u64 first_byte);
struct bio *btrfs_io_bio_alloc(unsigned int nr_iovecs);
struct bio *btrfs_bio_clone(struct bio *bio);
struct bio *btrfs_bio_clone_partial(struct bio *orig, int offset, int size);