From: Ming Lei <tom.leiming@gmail.com>
To: Shaohua Li <shli@kernel.org>, Jens Axboe <axboe@fb.com>,
linux-raid@vger.kernel.org, linux-block@vger.kernel.org,
Christoph Hellwig <hch@infradead.org>
Cc: Ming Lei <tom.leiming@gmail.com>
Subject: [PATCH v2 01/13] block: introduce bio_segments_all()
Date: Tue, 28 Feb 2017 23:41:31 +0800 [thread overview]
Message-ID: <1488296503-4987-2-git-send-email-tom.leiming@gmail.com> (raw)
In-Reply-To: <1488296503-4987-1-git-send-email-tom.leiming@gmail.com>
So that we can replace the direct access to .bi_vcnt.
Signed-off-by: Ming Lei <tom.leiming@gmail.com>
---
include/linux/bio.h | 7 +++++++
1 file changed, 7 insertions(+)
diff --git a/include/linux/bio.h b/include/linux/bio.h
index 8e521194f6fc..3364b3ed90e7 100644
--- a/include/linux/bio.h
+++ b/include/linux/bio.h
@@ -293,6 +293,13 @@ static inline void bio_get_last_bvec(struct bio *bio, struct bio_vec *bv)
bv->bv_len = iter.bi_bvec_done;
}
+static inline unsigned bio_segments_all(struct bio *bio)
+{
+ WARN_ON_ONCE(bio_flagged(bio, BIO_CLONED));
+
+ return bio->bi_vcnt;
+}
+
enum bip_flags {
BIP_BLOCK_INTEGRITY = 1 << 0, /* block layer owns integrity data */
BIP_MAPPED_INTEGRITY = 1 << 1, /* ref tag has been remapped */
--
2.7.4
next prev parent reply other threads:[~2017-02-28 15:41 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-28 15:41 [PATCH v2 00/14] md: cleanup on direct access to bvec table Ming Lei
2017-02-28 15:41 ` Ming Lei [this message]
2017-02-28 15:41 ` [PATCH v2 02/13] md: raid1/raid10: don't handle failure of bio_add_page() Ming Lei
2017-02-28 15:41 ` [PATCH v2 03/13] md: move two macros into md.h Ming Lei
2017-02-28 15:41 ` [PATCH v2 04/13] md: prepare for managing resync I/O pages in clean way Ming Lei
2017-02-28 23:30 ` Shaohua Li
2017-03-02 2:09 ` Ming Lei
2017-03-02 17:55 ` Shaohua Li
2017-03-03 1:54 ` Ming Lei
2017-02-28 15:41 ` [PATCH v2 05/13] md: raid1: simplify r1buf_pool_free() Ming Lei
2017-02-28 23:31 ` Shaohua Li
2017-03-02 2:11 ` Ming Lei
2017-03-02 17:49 ` Shaohua Li
2017-03-03 1:57 ` Ming Lei
2017-02-28 15:41 ` [PATCH v2 06/13] md: raid1: don't use bio's vec table to manage resync pages Ming Lei
2017-02-28 23:37 ` Shaohua Li
2017-03-02 2:25 ` Ming Lei
2017-03-02 17:48 ` Shaohua Li
2017-03-03 2:11 ` Ming Lei
2017-03-03 17:38 ` Shaohua Li
2017-02-28 15:41 ` [PATCH v2 07/13] md: raid1: retrieve page from pre-allocated resync page array Ming Lei
2017-02-28 15:41 ` [PATCH v2 08/13] md: raid1: use bio helper in process_checks() Ming Lei
2017-02-28 23:39 ` Shaohua Li
2017-02-28 15:41 ` [PATCH v2 09/13] md: raid1: use bio_segments_all() Ming Lei
2017-02-28 23:42 ` Shaohua Li
2017-03-02 2:34 ` Ming Lei
2017-03-02 7:52 ` Shaohua Li
2017-03-03 2:20 ` Ming Lei
2017-03-03 6:22 ` Ming Lei
2017-03-03 17:12 ` Shaohua Li
2017-02-28 15:41 ` [PATCH v2 10/13] md: raid10: refactor code of read reshape's .bi_end_io Ming Lei
2017-02-28 15:41 ` [PATCH v2 11/13] md: raid10: don't use bio's vec table to manage resync pages Ming Lei
2017-02-28 23:43 ` Shaohua Li
2017-02-28 15:41 ` [PATCH v2 12/13] md: raid10: retrieve page from preallocated resync page array Ming Lei
2017-02-28 15:41 ` [PATCH v2 13/13] md: raid10: avoid direct access to bvec table in handle_reshape_read_error Ming Lei
2017-02-28 23:46 ` Shaohua Li
2017-03-02 2:37 ` Ming Lei
2017-03-02 7:47 ` Shaohua Li
2017-03-03 2:30 ` Ming Lei
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