From: Ming Lei <ming.lei@redhat.com>
To: Jens Axboe <axboe@kernel.dk>
Cc: linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, Theodore Ts'o <tytso@mit.edu>,
Omar Sandoval <osandov@fb.com>, Sagi Grimberg <sagi@grimberg.me>,
Dave Chinner <dchinner@redhat.com>,
Kent Overstreet <kent.overstreet@gmail.com>,
Mike Snitzer <snitzer@redhat.com>,
dm-devel@redhat.com, Alexander Viro <viro@zeniv.linux.org.uk>,
linux-fsdevel@vger.kernel.org, linux-raid@vger.kernel.org,
David Sterba <dsterba@suse.com>,
linux-btrfs@vger.kernel.org,
"Darrick J . Wong" <darrick.wong@oracle.com>,
linux-xfs@vger.kernel.org, Gao Xiang <gaoxiang25@huawei.com>,
Christoph Hellwig <hch@lst.de>,
linux-ext4@vger.kernel.org, Coly Li <colyli@suse.de>,
linux-bcache@vger.kernel.org, Boaz Harrosh <ooo@electrozaur.com>,
Bob Peterson <rpeterso@redhat.com>,
cluster-devel@redhat.com, Ming Lei <ming.lei@redhat.com>
Subject: [PATCH V13 03/19] block: remove bvec_iter_rewind()
Date: Fri, 11 Jan 2019 19:01:11 +0800 [thread overview]
Message-ID: <20190111110127.21664-4-ming.lei@redhat.com> (raw)
In-Reply-To: <20190111110127.21664-1-ming.lei@redhat.com>
Commit 7759eb23fd980 ("block: remove bio_rewind_iter()") removes
bio_rewind_iter(), then no one uses bvec_iter_rewind() any more,
so remove it.
Reviewed-by: Omar Sandoval <osandov@fb.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ming Lei <ming.lei@redhat.com>
---
include/linux/bvec.h | 24 ------------------------
1 file changed, 24 deletions(-)
diff --git a/include/linux/bvec.h b/include/linux/bvec.h
index 02c73c6aa805..ba0ae40e77c9 100644
--- a/include/linux/bvec.h
+++ b/include/linux/bvec.h
@@ -92,30 +92,6 @@ static inline bool bvec_iter_advance(const struct bio_vec *bv,
return true;
}
-static inline bool bvec_iter_rewind(const struct bio_vec *bv,
- struct bvec_iter *iter,
- unsigned int bytes)
-{
- while (bytes) {
- unsigned len = min(bytes, iter->bi_bvec_done);
-
- if (iter->bi_bvec_done == 0) {
- if (WARN_ONCE(iter->bi_idx == 0,
- "Attempted to rewind iter beyond "
- "bvec's boundaries\n")) {
- return false;
- }
- iter->bi_idx--;
- iter->bi_bvec_done = __bvec_iter_bvec(bv, *iter)->bv_len;
- continue;
- }
- bytes -= len;
- iter->bi_size += len;
- iter->bi_bvec_done -= len;
- }
- return true;
-}
-
#define for_each_bvec(bvl, bio_vec, iter, start) \
for (iter = (start); \
(iter).bi_size && \
--
2.9.5
next prev parent reply other threads:[~2019-01-11 11:02 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-11 11:01 [PATCH V13 00/19] block: support multi-page bvec Ming Lei
2019-01-11 11:01 ` [PATCH V13 01/19] btrfs: look at bi_size for repair decisions Ming Lei
2019-01-11 11:01 ` [PATCH V13 02/19] block: don't use bio->bi_vcnt to figure out segment number Ming Lei
2019-01-11 11:01 ` Ming Lei [this message]
2019-01-11 11:01 ` [PATCH V13 04/19] block: rename bvec helpers Ming Lei
2019-01-11 11:01 ` [PATCH V13 05/19] block: introduce multi-page " Ming Lei
2019-01-11 11:01 ` [PATCH V13 06/19] block: introduce bio_for_each_bvec() and rq_for_each_bvec() Ming Lei
2019-01-11 11:01 ` [PATCH V13 07/19] block: use bio_for_each_bvec() to compute multi-page bvec count Ming Lei
2019-01-11 11:01 ` [PATCH V13 08/19] block: use bio_for_each_bvec() to map sg Ming Lei
2019-01-11 11:01 ` [PATCH V13 09/19] block: introduce bvec_last_segment() Ming Lei
2019-01-11 11:01 ` [PATCH V13 10/19] fs/buffer.c: use bvec iterator to truncate the bio Ming Lei
2019-01-11 11:01 ` [PATCH V13 11/19] btrfs: use bvec_last_segment to get bio's last page Ming Lei
2019-01-11 11:01 ` [PATCH V13 12/19] block: loop: pass multi-page bvec to iov_iter Ming Lei
2019-01-11 11:01 ` [PATCH V13 13/19] bcache: avoid to use bio_for_each_segment_all() in bch_bio_alloc_pages() Ming Lei
2019-01-11 11:01 ` [PATCH V13 14/19] block: allow bio_for_each_segment_all() to iterate over multi-page bvec Ming Lei
2019-01-11 11:01 ` [PATCH V13 15/19] block: enable multipage bvecs Ming Lei
2019-01-11 11:01 ` [PATCH V13 16/19] block: always define BIO_MAX_PAGES as 256 Ming Lei
2019-01-11 11:01 ` [PATCH V13 17/19] block: document usage of bio iterator helpers Ming Lei
2019-01-11 11:01 ` [PATCH V13 18/19] block: kill QUEUE_FLAG_NO_SG_MERGE Ming Lei
2019-01-11 11:01 ` [PATCH V13 19/19] block: kill BLK_MQ_F_SG_MERGE Ming Lei
2019-01-15 3:44 ` [PATCH V13 00/19] block: support multi-page bvec Jens Axboe
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