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/r/20190830162812.ga10...@infradead.org/ Reported-by: Christoph Hellwig <h...@infradead.org> Signed-off-by: Gao Xiang <gaoxian...@huawei.com> --- fs/erofs/data.c | 21 +++++++++++++-------- fs/erofs/internal.h | 7 ------- fs/erofs/zdata.c | 6 ++++-- 3 files changed, 17 insertions(+), 17 deletions(-) diff --git a/fs/erofs/data.c b/fs/erofs/data.c index 28eda71bb1a9..70b1e353756e 100644 --- a/fs/erofs/data.c +++ b/fs/erofs/data.c @@ -40,7 +40,8 @@ static inline void read_endio(struct bio *bio) static struct bio *erofs_grab_raw_bio(struct super_block *sb, erofs_blk_t blkaddr, - unsigned int nr_pages) + unsigned int nr_pages, + bool ismeta) { struct bio *bio = bio_alloc(GFP_NOIO, nr_pages); @@ -48,6 +49,11 @@ static struct bio *erofs_grab_raw_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 = sb; + if (ismeta) + bio->bi_opf = REQ_OP_READ | REQ_META; + else + bio->bi_opf = REQ_OP_READ; + return bio; } @@ -69,14 +75,14 @@ struct page *erofs_get_meta_page(struct super_block *sb, erofs_blk_t blkaddr) if (!PageUptodate(page)) { struct bio *bio; - bio = erofs_grab_raw_bio(sb, blkaddr, 1); + bio = erofs_grab_raw_bio(sb, blkaddr, 1, true); 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 */ @@ -201,7 +207,7 @@ 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; } @@ -271,7 +277,7 @@ static inline struct bio *erofs_read_raw_page(struct bio *bio, if (nblocks > BIO_MAX_PAGES) nblocks = BIO_MAX_PAGES; - bio = erofs_grab_raw_bio(sb, blknr, nblocks); + bio = erofs_grab_raw_bio(sb, blknr, nblocks, false); } err = bio_add_page(bio, page, PAGE_SIZE, 0); @@ -302,8 +308,7 @@ 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; } @@ -367,7 +372,7 @@ 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 90c62fb5f80d..13c8d841c43a 100644 --- a/fs/erofs/internal.h +++ b/fs/erofs/internal.h @@ -409,13 +409,6 @@ static inline int z_erofs_map_blocks_iter(struct inode *inode, #endif /* !CONFIG_EROFS_FS_ZIP */ /* data.c */ -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 21ade322cc81..3010fa3d1ac3 100644 --- a/fs/erofs/zdata.c +++ b/fs/erofs/zdata.c @@ -1258,7 +1258,7 @@ 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; } @@ -1270,6 +1270,8 @@ static bool z_erofs_vle_submit_all(struct super_block *sb, bio->bi_iter.bi_sector = (sector_t)(first_index + i) << LOG_SECTORS_PER_BLOCK; bio->bi_private = bi_private; + bio->bi_opf = REQ_OP_READ; + ++nr_bios; } @@ -1290,7 +1292,7 @@ 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
