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authorGao Xiang <gaoxiang25@huawei.com>2019-09-04 10:09:04 +0800
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-09-05 20:10:08 +0200
commit94e4e153b1c25a49b4953c424e6e2f66efb449f3 (patch)
tree1904226e84247a6742391a0a47702cc8cfc3d264 /fs/erofs
parente655b5b3a29c5a16056f13854ac3db5b39c0b804 (diff)
downloadlinux-94e4e153b1c25a49b4953c424e6e2f66efb449f3.tar.bz2
erofs: kill __submit_bio()
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.GA10694@infradead.org/ Reported-by: Christoph Hellwig <hch@infradead.org> Signed-off-by: Gao Xiang <gaoxiang25@huawei.com> Link: https://lore.kernel.org/r/20190904020912.63925-18-gaoxiang25@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/erofs')
-rw-r--r--fs/erofs/data.c21
-rw-r--r--fs/erofs/internal.h7
-rw-r--r--fs/erofs/zdata.c6
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 @@ repeat:
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 @@ submit_bio_retry:
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 @@ has_updated:
/* 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 @@ repeat:
if (bio && force_submit) {
submit_bio_retry:
- __submit_bio(bio, REQ_OP_READ, 0);
+ submit_bio(bio);
bio = NULL;
}
@@ -1270,6 +1270,8 @@ submit_bio_retry:
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 @@ skippage:
} 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;