From: Gao Xiang <gaoxian...@huawei.com> As Christoph pointed out [1], " Why is there __submit_bio which really just obsfucates what is going on? Also why is __submit_bio using bio_set_op_attrs instead of opencode it as the comment right next to it asks you to? "
Let's use submit_bio directly instead. [1] https://lore.kernel.org/lkml/20190830162812.ga10...@infradead.org/ Reported-by: Christoph Hellwig <h...@infradead.org> Signed-off-by: Gao Xiang <gaoxian...@huawei.com> --- fs/erofs/data.c | 15 ++++++++------- fs/erofs/internal.h | 9 ++------- fs/erofs/zdata.c | 6 +++--- 3 files changed, 13 insertions(+), 17 deletions(-) diff --git a/fs/erofs/data.c b/fs/erofs/data.c index 837b07cd2761..d3cd7a453648 100644 --- a/fs/erofs/data.c +++ b/fs/erofs/data.c @@ -57,14 +57,15 @@ struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr) if (!PageUptodate(page)) { struct bio *bio; - bio = erofs_grab_bio(sb, blkaddr, 1, sb, read_endio); + bio = erofs_grab_bio(sb, REQ_OP_READ | REQ_META, + blkaddr, 1, sb, read_endio); if (bio_add_page(bio, page, PAGE_SIZE, 0) != PAGE_SIZE) { err = -EFAULT; goto err_out; } - __submit_bio(bio, REQ_OP_READ, REQ_META); + submit_bio(bio); lock_page(page); /* this page has been truncated by others */ @@ -188,7 +189,7 @@ static inline struct bio *erofs_read_raw_page(struct bio *bio, /* not continuous */ *last_block + 1 != current_block) { submit_bio_retry: - __submit_bio(bio, REQ_OP_READ, 0); + submit_bio(bio); bio = NULL; } @@ -258,7 +259,8 @@ static inline struct bio *erofs_read_raw_page(struct bio *bio, if (nblocks > BIO_MAX_PAGES) nblocks = BIO_MAX_PAGES; - bio = erofs_grab_bio(sb, blknr, nblocks, sb, read_endio); + bio = erofs_grab_bio(sb, REQ_OP_READ, blknr, nblocks, + sb, read_endio); } err = bio_add_page(bio, page, PAGE_SIZE, 0); @@ -289,8 +291,7 @@ static inline struct bio *erofs_read_raw_page(struct bio *bio, /* if updated manually, continuous pages has a gap */ if (bio) submit_bio_out: - __submit_bio(bio, REQ_OP_READ, 0); - + submit_bio(bio); return err ? ERR_PTR(err) : NULL; } @@ -354,7 +355,7 @@ static int erofs_raw_access_readpages(struct file *filp, /* the rare case (end in gaps) */ if (bio) - __submit_bio(bio, REQ_OP_READ, 0); + submit_bio(bio); return 0; } diff --git a/fs/erofs/internal.h b/fs/erofs/internal.h index 40d4dd47bb7a..15545959af92 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -406,6 +406,7 @@ static inline int z_erofs_map_blocks_iter(struct inode *inode, /* data.c */ static inline struct bio *erofs_grab_bio(struct super_block *sb, + unsigned int bi_opf, erofs_blk_t blkaddr, unsigned int nr_pages, void *bi_private, bio_end_io_t endio) @@ -416,16 +417,10 @@ static inline struct bio *erofs_grab_bio(struct super_block *sb, bio_set_dev(bio, sb->s_bdev); bio->bi_iter.bi_sector = (sector_t)blkaddr << LOG_SECTORS_PER_BLOCK; bio->bi_private = bi_private; + bio->bi_opf = bi_opf; return bio; } -static inline void __submit_bio(struct bio *bio, unsigned int op, - unsigned int op_flags) -{ - bio_set_op_attrs(bio, op, op_flags); - submit_bio(bio); -} - struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr); int erofs_map_blocks(struct inode *, struct erofs_map_blocks *, int); diff --git a/fs/erofs/zdata.c b/fs/erofs/zdata.c index abe28565d6c0..ce1a0f2997a9 100644 --- a/fs/erofs/zdata.c +++ b/fs/erofs/zdata.c @@ -1258,12 +1258,12 @@ static bool z_erofs_vle_submit_all(struct super_block *sb, if (bio && force_submit) { submit_bio_retry: - __submit_bio(bio, REQ_OP_READ, 0); + submit_bio(bio); bio = NULL; } if (!bio) { - bio = erofs_grab_bio(sb, first_index + i, + bio = erofs_grab_bio(sb, REQ_OP_READ, first_index + i, BIO_MAX_PAGES, bi_private, z_erofs_vle_read_endio); ++nr_bios; @@ -1286,7 +1286,7 @@ static bool z_erofs_vle_submit_all(struct super_block *sb, } while (owned_head != Z_EROFS_PCLUSTER_TAIL); if (bio) - __submit_bio(bio, REQ_OP_READ, 0); + submit_bio(bio); if (postsubmit_is_all_bypassed(q, nr_bios, force_fg)) return true; -- 2.17.1 _______________________________________________ devel mailing list de...@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel
