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Message-Id: <20171218122247.3488-18-ming.lei@redhat.com>
Date: Mon, 18 Dec 2017 20:22:19 +0800
From: Ming Lei <ming.lei@...hat.com>
To: Jens Axboe <axboe@...com>, Christoph Hellwig <hch@...radead.org>,
Alexander Viro <viro@...iv.linux.org.uk>,
Kent Overstreet <kent.overstreet@...il.com>
Cc: Huang Ying <ying.huang@...el.com>, linux-kernel@...r.kernel.org,
linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
linux-mm@...ck.org, Theodore Ts'o <tytso@....edu>,
"Darrick J . Wong" <darrick.wong@...cle.com>,
Coly Li <colyli@...e.de>, Filipe Manana <fdmanana@...il.com>,
Ming Lei <ming.lei@...hat.com>
Subject: [PATCH V4 17/45] block: rename bio_segments() with bio_pages()
bio_segments() never returns count of actual segment, just like
original bio_for_each_segment(), so rename it as bio_pages().
Signed-off-by: Ming Lei <ming.lei@...hat.com>
---
block/bio.c | 2 +-
block/blk-merge.c | 2 +-
drivers/block/loop.c | 4 ++--
drivers/md/dm-log-writes.c | 2 +-
drivers/target/target_core_pscsi.c | 2 +-
fs/btrfs/check-integrity.c | 2 +-
fs/btrfs/inode.c | 2 +-
include/linux/bio.h | 2 +-
8 files changed, 9 insertions(+), 9 deletions(-)
diff --git a/block/bio.c b/block/bio.c
index b93677f8f682..1649dc465af7 100644
--- a/block/bio.c
+++ b/block/bio.c
@@ -679,7 +679,7 @@ struct bio *bio_clone_bioset(struct bio *bio_src, gfp_t gfp_mask,
* __bio_clone_fast() anyways.
*/
- bio = bio_alloc_bioset(gfp_mask, bio_segments(bio_src), bs);
+ bio = bio_alloc_bioset(gfp_mask, bio_pages(bio_src), bs);
if (!bio)
return NULL;
bio->bi_disk = bio_src->bi_disk;
diff --git a/block/blk-merge.c b/block/blk-merge.c
index b571e91b67f6..25ffb84be058 100644
--- a/block/blk-merge.c
+++ b/block/blk-merge.c
@@ -329,7 +329,7 @@ void blk_recount_segments(struct request_queue *q, struct bio *bio)
/* estimate segment number by bi_vcnt for non-cloned bio */
if (bio_flagged(bio, BIO_CLONED))
- seg_cnt = bio_segments(bio);
+ seg_cnt = bio_pages(bio);
else
seg_cnt = bio->bi_vcnt;
diff --git a/drivers/block/loop.c b/drivers/block/loop.c
index 7f56422d0066..8e30d081ad2a 100644
--- a/drivers/block/loop.c
+++ b/drivers/block/loop.c
@@ -499,7 +499,7 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
struct bio_vec tmp;
__rq_for_each_bio(bio, rq)
- segments += bio_segments(bio);
+ segments += bio_pages(bio);
bvec = kmalloc(sizeof(struct bio_vec) * segments, GFP_NOIO);
if (!bvec)
return -EIO;
@@ -525,7 +525,7 @@ static int lo_rw_aio(struct loop_device *lo, struct loop_cmd *cmd,
*/
offset = bio->bi_iter.bi_bvec_done;
bvec = __bvec_iter_bvec(bio->bi_io_vec, bio->bi_iter);
- segments = bio_segments(bio);
+ segments = bio_pages(bio);
}
atomic_set(&cmd->ref, 2);
diff --git a/drivers/md/dm-log-writes.c b/drivers/md/dm-log-writes.c
index cd023ff6a33b..1a7436a8aa2a 100644
--- a/drivers/md/dm-log-writes.c
+++ b/drivers/md/dm-log-writes.c
@@ -723,7 +723,7 @@ static int log_writes_map(struct dm_target *ti, struct bio *bio)
if (discard_bio)
alloc_size = sizeof(struct pending_block);
else
- alloc_size = sizeof(struct pending_block) + sizeof(struct bio_vec) * bio_segments(bio);
+ alloc_size = sizeof(struct pending_block) + sizeof(struct bio_vec) * bio_pages(bio);
block = kzalloc(alloc_size, GFP_NOIO);
if (!block) {
diff --git a/drivers/target/target_core_pscsi.c b/drivers/target/target_core_pscsi.c
index 7c69b4a9694d..88b0502fffbc 100644
--- a/drivers/target/target_core_pscsi.c
+++ b/drivers/target/target_core_pscsi.c
@@ -914,7 +914,7 @@ pscsi_map_sg(struct se_cmd *cmd, struct scatterlist *sgl, u32 sgl_nents,
rc = bio_add_pc_page(pdv->pdv_sd->request_queue,
bio, page, bytes, off);
pr_debug("PSCSI: bio->bi_vcnt: %d nr_vecs: %d\n",
- bio_segments(bio), nr_vecs);
+ bio_pages(bio), nr_vecs);
if (rc != bytes) {
pr_debug("PSCSI: Reached bio->bi_vcnt max:"
" %d i: %d bio: %p, allocating another"
diff --git a/fs/btrfs/check-integrity.c b/fs/btrfs/check-integrity.c
index d200389099db..aac952f47636 100644
--- a/fs/btrfs/check-integrity.c
+++ b/fs/btrfs/check-integrity.c
@@ -2813,7 +2813,7 @@ static void __btrfsic_submit_bio(struct bio *bio)
struct bvec_iter iter;
int bio_is_patched;
char **mapped_datav;
- unsigned int segs = bio_segments(bio);
+ unsigned int segs = bio_pages(bio);
dev_bytenr = 512 * bio->bi_iter.bi_sector;
bio_is_patched = 0;
diff --git a/fs/btrfs/inode.c b/fs/btrfs/inode.c
index c279030ee5ed..fda9f2a92f7a 100644
--- a/fs/btrfs/inode.c
+++ b/fs/btrfs/inode.c
@@ -8030,7 +8030,7 @@ static blk_status_t dio_read_error(struct inode *inode, struct bio *failed_bio,
return BLK_STS_IOERR;
}
- segs = bio_segments(failed_bio);
+ segs = bio_pages(failed_bio);
bio_get_first_bvec(failed_bio, &bvec);
if (segs > 1 ||
(bvec.bv_len > btrfs_inode_sectorsize(inode)))
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 27dd152697ac..95ca5ddc72ef 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -195,7 +195,7 @@ static inline bool bio_rewind_iter(struct bio *bio, struct bvec_iter *iter,
#define bio_iter_last(bvec, iter) ((iter).bi_size == (bvec).bv_len)
-static inline unsigned bio_segments(struct bio *bio)
+static inline unsigned bio_pages(struct bio *bio)
{
unsigned segs = 0;
struct bio_vec bv;
--
2.9.5
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