From: Ming Lei <ming.lei@redhat.com>
To: Christoph Hellwig <hch@lst.de>
Cc: Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-mm@kvack.org, 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, Shaohua Li <shli@kernel.org>,
linux-raid@vger.kernel.org, linux-erofs@lists.ozlabs.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>,
Theodore Ts'o <tytso@mit.edu>,
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
Subject: Re: [PATCH V10 01/19] block: introduce multi-page page bvec helpers
Date: Mon, 19 Nov 2018 10:23:28 +0800 [thread overview]
Message-ID: <20181119022327.GC10838@ming.t460p> (raw)
In-Reply-To: <20181116131305.GA3165@lst.de>
On Fri, Nov 16, 2018 at 02:13:05PM +0100, Christoph Hellwig wrote:
> > -#define bvec_iter_page(bvec, iter) \
> > +#define mp_bvec_iter_page(bvec, iter) \
> > (__bvec_iter_bvec((bvec), (iter))->bv_page)
> >
> > -#define bvec_iter_len(bvec, iter) \
> > +#define mp_bvec_iter_len(bvec, iter) \
>
> I'd much prefer if we would stick to the segment naming that
> we also use in the higher level helper.
>
> So segment_iter_page, segment_iter_len, etc.
We discussed the naming problem before, one big problem is that the 'segment'
in bio_for_each_segment*() means one single page segment actually.
If we use segment_iter_page() here for multi-page segment, it may
confuse people.
Of course, I prefer to the naming of segment/page,
And Jens didn't agree to rename bio_for_each_segment*() before.
So what is the solution we should take for moving on?
>
> > + * This helpers are for building sp bvec in flight.
>
> Please spell out single page, sp is not easy understandable.
OK.
Thanks,
Ming
next prev parent reply other threads:[~2018-11-19 2:24 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-11-15 8:52 [PATCH V10 00/19] block: support multi-page bvec Ming Lei
2018-11-15 8:52 ` [PATCH V10 01/19] block: introduce multi-page page bvec helpers Ming Lei
2018-11-15 18:25 ` Omar Sandoval
2018-11-19 2:25 ` Ming Lei
2018-11-16 13:13 ` Christoph Hellwig
2018-11-19 2:23 ` Ming Lei [this message]
2018-11-19 3:10 ` Jens Axboe
2018-11-19 3:35 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 02/19] block: introduce bio_for_each_bvec() Ming Lei
2018-11-15 18:28 ` Omar Sandoval
2018-11-16 13:30 ` Christoph Hellwig
2018-11-19 3:31 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 03/19] block: use bio_for_each_bvec() to compute multi-page bvec count Ming Lei
2018-11-15 20:20 ` Omar Sandoval
2018-11-15 21:05 ` Mike Snitzer
2018-11-15 22:18 ` Omar Sandoval
2018-11-16 9:19 ` Christoph Hellwig
2018-11-16 9:41 ` Gao Xiang
2018-11-16 16:04 ` Omar Sandoval
2018-11-19 7:50 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 04/19] block: use bio_for_each_bvec() to map sg Ming Lei
2018-11-15 22:33 ` Omar Sandoval
2018-11-16 13:33 ` Christoph Hellwig
2018-11-19 7:51 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 05/19] block: introduce bvec_last_segment() Ming Lei
2018-11-15 23:23 ` Omar Sandoval
2018-11-19 7:57 ` Ming Lei
2018-11-16 13:34 ` Christoph Hellwig
2018-11-15 8:52 ` [PATCH V10 06/19] fs/buffer.c: use bvec iterator to truncate the bio Ming Lei
2018-11-16 0:20 ` Omar Sandoval
2018-11-16 13:36 ` Christoph Hellwig
2018-11-15 8:52 ` [PATCH V10 07/19] btrfs: use bvec_last_segment to get bio's last page Ming Lei
2018-11-16 0:21 ` Omar Sandoval
2018-11-16 13:37 ` Christoph Hellwig
2018-11-19 8:09 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 08/19] btrfs: move bio_pages_all() to btrfs Ming Lei
2018-11-16 0:23 ` Omar Sandoval
2018-11-19 8:15 ` Ming Lei
2018-11-16 13:38 ` Christoph Hellwig
2018-11-19 8:19 ` Ming Lei
2018-11-19 8:24 ` Christoph Hellwig
2018-11-15 8:52 ` [PATCH V10 09/19] block: introduce bio_bvecs() Ming Lei
2018-11-16 0:26 ` Omar Sandoval
2018-11-16 13:45 ` Christoph Hellwig
2018-11-19 8:21 ` Ming Lei
2018-11-20 0:49 ` Sagi Grimberg
2018-11-20 16:16 ` Christoph Hellwig
2018-11-20 20:11 ` Sagi Grimberg
2018-11-21 0:59 ` Ming Lei
2018-11-21 3:20 ` Sagi Grimberg
2018-11-21 3:44 ` Ming Lei
2018-11-21 4:25 ` Sagi Grimberg
2018-11-21 4:42 ` Sagi Grimberg
2018-11-21 5:04 ` Ming Lei
2018-11-21 5:35 ` Sagi Grimberg
2018-11-21 8:46 ` Christoph Hellwig
2018-11-21 10:19 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 10/19] block: loop: pass multi-page bvec to iov_iter Ming Lei
2018-11-16 0:40 ` Omar Sandoval
2018-11-19 8:25 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 11/19] bcache: avoid to use bio_for_each_segment_all() in bch_bio_alloc_pages() Ming Lei
2018-11-16 0:44 ` Omar Sandoval
2018-11-19 8:27 ` Ming Lei
2018-11-16 13:46 ` Christoph Hellwig
2018-11-19 8:28 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 12/19] block: allow bio_for_each_segment_all() to iterate over multi-page bvec Ming Lei
2018-11-15 12:42 ` David Sterba
2018-11-19 8:29 ` Ming Lei
2018-11-16 1:22 ` Omar Sandoval
2018-11-19 8:32 ` Ming Lei
2018-11-15 8:53 ` [PATCH V10 13/19] iomap & xfs: only account for new added page Ming Lei
2018-11-16 1:46 ` Omar Sandoval
2018-11-19 8:35 ` Ming Lei
2018-11-16 13:49 ` Christoph Hellwig
2018-11-19 8:39 ` Ming Lei
2018-11-15 8:53 ` [PATCH V10 14/19] block: enable multipage bvecs Ming Lei
2018-11-16 1:56 ` Omar Sandoval
2018-11-19 8:45 ` Ming Lei
2018-11-16 13:53 ` Christoph Hellwig
2018-11-19 9:00 ` Ming Lei
2018-11-15 8:53 ` [PATCH V10 15/19] block: always define BIO_MAX_PAGES as 256 Ming Lei
2018-11-16 1:59 ` Omar Sandoval
2018-11-19 9:04 ` Ming Lei
2018-11-20 2:45 ` Huang, Ying
2018-11-16 13:53 ` Christoph Hellwig
2018-11-15 8:53 ` [PATCH V10 16/19] block: document usage of bio iterator helpers Ming Lei
2018-11-16 2:05 ` Omar Sandoval
2018-11-15 8:53 ` [PATCH V10 17/19] block: don't use bio->bi_vcnt to figure out segment number Ming Lei
2018-11-16 2:11 ` Omar Sandoval
2018-11-19 9:06 ` Ming Lei
2018-11-16 13:55 ` Christoph Hellwig
2018-11-15 8:53 ` [PATCH V10 18/19] block: kill QUEUE_FLAG_NO_SG_MERGE Ming Lei
2018-11-16 2:18 ` Omar Sandoval
2018-11-16 13:59 ` Christoph Hellwig
2018-11-16 16:40 ` Omar Sandoval
2018-11-19 9:17 ` Ming Lei
2018-11-16 13:58 ` Christoph Hellwig
2018-11-19 9:20 ` Ming Lei
2018-11-15 8:53 ` [PATCH V10 19/19] block: kill BLK_MQ_F_SG_MERGE Ming Lei
2018-11-16 13:59 ` Christoph Hellwig
2018-11-16 16:40 ` Omar Sandoval
2018-11-16 14:03 ` [PATCH V10 00/19] block: support multi-page bvec Christoph Hellwig
2018-11-17 2:42 ` Ming Lei
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