From: Ming Lei <ming.lei@redhat.com>
To: Sagi Grimberg <sagi@grimberg.me>
Cc: Mike Snitzer <snitzer@redhat.com>,
linux-mm@kvack.org, dm-devel@redhat.com,
Christoph Hellwig <hch@lst.de>,
"Darrick J . Wong" <darrick.wong@oracle.com>,
cluster-devel@redhat.com, linux-ext4@vger.kernel.org,
Shaohua Li <shli@kernel.org>,
Kent Overstreet <kent.overstreet@gmail.com>,
Boaz Harrosh <ooo@electrozaur.com>,
Gao Xiang <gaoxiang25@huawei.com>, Coly Li <colyli@suse.de>,
linux-raid@vger.kernel.org, linux-bcache@vger.kernel.org,
Alexander Viro <viro@zeniv.linux.org.uk>,
David Sterba <dsterba@suse.com>, Jens Axboe <axboe@kernel.dk>,
linux-block@vger.kernel.org, Theodore Ts'o <tytso@mit.edu>,
linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-erofs@lists.ozlabs.org,
linux-btrfs@vger.kernel.org
Subject: Re: [PATCH V10 09/19] block: introduce bio_bvecs()
Date: Wed, 21 Nov 2018 08:59:03 +0800 [thread overview]
Message-ID: <20181121005902.GA31748@ming.t460p> (raw)
In-Reply-To: <53526aae-fb9b-ee38-0a01-e5899e2d4e4d@grimberg.me>
On Tue, Nov 20, 2018 at 12:11:35PM -0800, Sagi Grimberg wrote:
>
> > > > The only user in your final tree seems to be the loop driver, and
> > > > even that one only uses the helper for read/write bios.
> > > >
> > > > I think something like this would be much simpler in the end:
> > >
> > > The recently submitted nvme-tcp host driver should also be a user
> > > of this. Does it make sense to keep it as a helper then?
> >
> > I did take a brief look at the code, and I really don't understand
> > why the heck it even deals with bios to start with. Like all the
> > other nvme transports it is a blk-mq driver and should iterate
> > over segments in a request and more or less ignore bios. Something
> > is horribly wrong in the design.
>
> Can you explain a little more? I'm more than happy to change that but
> I'm not completely clear how...
>
> Before we begin a data transfer, we need to set our own iterator that
> will advance with the progression of the data transfer. We also need to
> keep in mind that all the data transfer (both send and recv) are
> completely non blocking (and zero-copy when we send).
>
> That means that every data movement needs to be able to suspend
> and resume asynchronously. i.e. we cannot use the following pattern:
> rq_for_each_segment(bvec, rq, rq_iter) {
> iov_iter_bvec(&iov_iter, WRITE, &bvec, 1, bvec.bv_len);
> send(sock, iov_iter);
> }
Not sure I understand the 'blocking' problem in this case.
We can build a bvec table from this req, and send them all
in send(), can this way avoid your blocking issue? You may see this
example in branch 'rq->bio != rq->biotail' of lo_rw_aio().
If this way is what you need, I think you are right, even we may
introduce the following helpers:
rq_for_each_bvec()
rq_bvecs()
So looks nvme-tcp host driver might be the 2nd driver which benefits
from multi-page bvec directly.
The multi-page bvec V11 has passed my tests and addressed almost
all the comments during review on V10. I removed bio_vecs() in V11,
but it won't be big deal, we can introduce them anytime when there
is the requirement.
Thanks,
Ming
WARNING: multiple messages have this Message-ID (diff)
From: Ming Lei <ming.lei@redhat.com>
To: Sagi Grimberg <sagi@grimberg.me>
Cc: Christoph Hellwig <hch@lst.de>, 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 09/19] block: introduce bio_bvecs()
Date: Wed, 21 Nov 2018 08:59:03 +0800 [thread overview]
Message-ID: <20181121005902.GA31748@ming.t460p> (raw)
In-Reply-To: <53526aae-fb9b-ee38-0a01-e5899e2d4e4d@grimberg.me>
On Tue, Nov 20, 2018 at 12:11:35PM -0800, Sagi Grimberg wrote:
>
> > > > The only user in your final tree seems to be the loop driver, and
> > > > even that one only uses the helper for read/write bios.
> > > >
> > > > I think something like this would be much simpler in the end:
> > >
> > > The recently submitted nvme-tcp host driver should also be a user
> > > of this. Does it make sense to keep it as a helper then?
> >
> > I did take a brief look at the code, and I really don't understand
> > why the heck it even deals with bios to start with. Like all the
> > other nvme transports it is a blk-mq driver and should iterate
> > over segments in a request and more or less ignore bios. Something
> > is horribly wrong in the design.
>
> Can you explain a little more? I'm more than happy to change that but
> I'm not completely clear how...
>
> Before we begin a data transfer, we need to set our own iterator that
> will advance with the progression of the data transfer. We also need to
> keep in mind that all the data transfer (both send and recv) are
> completely non blocking (and zero-copy when we send).
>
> That means that every data movement needs to be able to suspend
> and resume asynchronously. i.e. we cannot use the following pattern:
> rq_for_each_segment(bvec, rq, rq_iter) {
> iov_iter_bvec(&iov_iter, WRITE, &bvec, 1, bvec.bv_len);
> send(sock, iov_iter);
> }
Not sure I understand the 'blocking' problem in this case.
We can build a bvec table from this req, and send them all
in send(), can this way avoid your blocking issue? You may see this
example in branch 'rq->bio != rq->biotail' of lo_rw_aio().
If this way is what you need, I think you are right, even we may
introduce the following helpers:
rq_for_each_bvec()
rq_bvecs()
So looks nvme-tcp host driver might be the 2nd driver which benefits
from multi-page bvec directly.
The multi-page bvec V11 has passed my tests and addressed almost
all the comments during review on V10. I removed bio_vecs() in V11,
but it won't be big deal, we can introduce them anytime when there
is the requirement.
Thanks,
Ming
WARNING: multiple messages have this Message-ID (diff)
From: ming.lei@redhat.com (Ming Lei)
Subject: [PATCH V10 09/19] block: introduce bio_bvecs()
Date: Wed, 21 Nov 2018 08:59:03 +0800 [thread overview]
Message-ID: <20181121005902.GA31748@ming.t460p> (raw)
In-Reply-To: <53526aae-fb9b-ee38-0a01-e5899e2d4e4d@grimberg.me>
On Tue, Nov 20, 2018@12:11:35PM -0800, Sagi Grimberg wrote:
>
> > > > The only user in your final tree seems to be the loop driver, and
> > > > even that one only uses the helper for read/write bios.
> > > >
> > > > I think something like this would be much simpler in the end:
> > >
> > > The recently submitted nvme-tcp host driver should also be a user
> > > of this. Does it make sense to keep it as a helper then?
> >
> > I did take a brief look at the code, and I really don't understand
> > why the heck it even deals with bios to start with. Like all the
> > other nvme transports it is a blk-mq driver and should iterate
> > over segments in a request and more or less ignore bios. Something
> > is horribly wrong in the design.
>
> Can you explain a little more? I'm more than happy to change that but
> I'm not completely clear how...
>
> Before we begin a data transfer, we need to set our own iterator that
> will advance with the progression of the data transfer. We also need to
> keep in mind that all the data transfer (both send and recv) are
> completely non blocking (and zero-copy when we send).
>
> That means that every data movement needs to be able to suspend
> and resume asynchronously. i.e. we cannot use the following pattern:
> rq_for_each_segment(bvec, rq, rq_iter) {
> iov_iter_bvec(&iov_iter, WRITE, &bvec, 1, bvec.bv_len);
> send(sock, iov_iter);
> }
Not sure I understand the 'blocking' problem in this case.
We can build a bvec table from this req, and send them all
in send(), can this way avoid your blocking issue? You may see this
example in branch 'rq->bio != rq->biotail' of lo_rw_aio().
If this way is what you need, I think you are right, even we may
introduce the following helpers:
rq_for_each_bvec()
rq_bvecs()
So looks nvme-tcp host driver might be the 2nd driver which benefits
from multi-page bvec directly.
The multi-page bvec V11 has passed my tests and addressed almost
all the comments during review on V10. I removed bio_vecs() in V11,
but it won't be big deal, we can introduce them anytime when there
is the requirement.
Thanks,
Ming
WARNING: multiple messages have this Message-ID (diff)
From: Ming Lei <ming.lei@redhat.com>
To: cluster-devel.redhat.com
Subject: [Cluster-devel] [PATCH V10 09/19] block: introduce bio_bvecs()
Date: Wed, 21 Nov 2018 08:59:03 +0800 [thread overview]
Message-ID: <20181121005902.GA31748@ming.t460p> (raw)
In-Reply-To: <53526aae-fb9b-ee38-0a01-e5899e2d4e4d@grimberg.me>
On Tue, Nov 20, 2018 at 12:11:35PM -0800, Sagi Grimberg wrote:
>
> > > > The only user in your final tree seems to be the loop driver, and
> > > > even that one only uses the helper for read/write bios.
> > > >
> > > > I think something like this would be much simpler in the end:
> > >
> > > The recently submitted nvme-tcp host driver should also be a user
> > > of this. Does it make sense to keep it as a helper then?
> >
> > I did take a brief look at the code, and I really don't understand
> > why the heck it even deals with bios to start with. Like all the
> > other nvme transports it is a blk-mq driver and should iterate
> > over segments in a request and more or less ignore bios. Something
> > is horribly wrong in the design.
>
> Can you explain a little more? I'm more than happy to change that but
> I'm not completely clear how...
>
> Before we begin a data transfer, we need to set our own iterator that
> will advance with the progression of the data transfer. We also need to
> keep in mind that all the data transfer (both send and recv) are
> completely non blocking (and zero-copy when we send).
>
> That means that every data movement needs to be able to suspend
> and resume asynchronously. i.e. we cannot use the following pattern:
> rq_for_each_segment(bvec, rq, rq_iter) {
> iov_iter_bvec(&iov_iter, WRITE, &bvec, 1, bvec.bv_len);
> send(sock, iov_iter);
> }
Not sure I understand the 'blocking' problem in this case.
We can build a bvec table from this req, and send them all
in send(), can this way avoid your blocking issue? You may see this
example in branch 'rq->bio != rq->biotail' of lo_rw_aio().
If this way is what you need, I think you are right, even we may
introduce the following helpers:
rq_for_each_bvec()
rq_bvecs()
So looks nvme-tcp host driver might be the 2nd driver which benefits
from multi-page bvec directly.
The multi-page bvec V11 has passed my tests and addressed almost
all the comments during review on V10. I removed bio_vecs() in V11,
but it won't be big deal, we can introduce them anytime when there
is the requirement.
Thanks,
Ming
next prev parent reply other threads:[~2018-11-21 0:59 UTC|newest]
Thread overview: 410+ 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 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` [PATCH V10 01/19] block: introduce multi-page page bvec helpers Ming Lei
2018-11-15 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 18:25 ` Omar Sandoval
2018-11-15 18:25 ` [Cluster-devel] " Omar Sandoval
2018-11-15 18:25 ` Omar Sandoval
2018-11-15 18:25 ` Omar Sandoval
2018-11-19 2:25 ` Ming Lei
2018-11-19 2:25 ` [Cluster-devel] " Ming Lei
2018-11-19 2:25 ` Ming Lei
2018-11-19 2:25 ` Ming Lei
2018-11-16 13:13 ` Christoph Hellwig
2018-11-16 13:13 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:13 ` Christoph Hellwig
2018-11-16 13:13 ` Christoph Hellwig
2018-11-19 2:23 ` Ming Lei
2018-11-19 2:23 ` [Cluster-devel] " Ming Lei
2018-11-19 2:23 ` Ming Lei
2018-11-19 2:23 ` Ming Lei
2018-11-19 3:10 ` Jens Axboe
2018-11-19 3:10 ` [Cluster-devel] " Jens Axboe
2018-11-19 3:10 ` Jens Axboe
2018-11-19 3:35 ` Ming Lei
2018-11-19 3:35 ` [Cluster-devel] " Ming Lei
2018-11-19 3:35 ` Ming Lei
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 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 18:28 ` Omar Sandoval
2018-11-15 18:28 ` [Cluster-devel] " Omar Sandoval
2018-11-15 18:28 ` Omar Sandoval
2018-11-15 18:28 ` Omar Sandoval
2018-11-16 13:30 ` Christoph Hellwig
2018-11-16 13:30 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:30 ` Christoph Hellwig
2018-11-16 13:30 ` Christoph Hellwig
2018-11-19 3:31 ` Ming Lei
2018-11-19 3:31 ` [Cluster-devel] " Ming Lei
2018-11-19 3:31 ` Ming Lei
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 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 20:20 ` Omar Sandoval
2018-11-15 20:20 ` [Cluster-devel] " Omar Sandoval
2018-11-15 20:20 ` Omar Sandoval
2018-11-15 20:20 ` Omar Sandoval
2018-11-15 21:05 ` Mike Snitzer
2018-11-15 21:05 ` [Cluster-devel] " Mike Snitzer
2018-11-15 21:05 ` Mike Snitzer
2018-11-15 21:05 ` Mike Snitzer
2018-11-15 22:18 ` Omar Sandoval
2018-11-15 22:18 ` [Cluster-devel] " Omar Sandoval
2018-11-15 22:18 ` Omar Sandoval
2018-11-15 22:18 ` Omar Sandoval
2018-11-16 9:19 ` Christoph Hellwig
2018-11-16 9:19 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 9:19 ` Christoph Hellwig
2018-11-16 9:19 ` Christoph Hellwig
2018-11-16 9:41 ` Gao Xiang
2018-11-16 9:41 ` [Cluster-devel] " Gao Xiang
2018-11-16 9:41 ` Gao Xiang
2018-11-16 9:41 ` Gao Xiang
2018-11-16 9:41 ` Gao Xiang
2018-11-16 16:04 ` Omar Sandoval
2018-11-16 16:04 ` [Cluster-devel] " Omar Sandoval
2018-11-16 16:04 ` Omar Sandoval
2018-11-16 16:04 ` Omar Sandoval
2018-11-19 7:50 ` Ming Lei
2018-11-19 7:50 ` [Cluster-devel] " Ming Lei
2018-11-19 7:50 ` Ming Lei
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 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 22:33 ` Omar Sandoval
2018-11-15 22:33 ` [Cluster-devel] " Omar Sandoval
2018-11-15 22:33 ` Omar Sandoval
2018-11-15 22:33 ` Omar Sandoval
2018-11-16 13:33 ` Christoph Hellwig
2018-11-16 13:33 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:33 ` Christoph Hellwig
2018-11-16 13:33 ` Christoph Hellwig
2018-11-19 7:51 ` Ming Lei
2018-11-19 7:51 ` [Cluster-devel] " Ming Lei
2018-11-19 7:51 ` Ming Lei
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 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 23:23 ` Omar Sandoval
2018-11-15 23:23 ` [Cluster-devel] " Omar Sandoval
2018-11-15 23:23 ` Omar Sandoval
2018-11-15 23:23 ` Omar Sandoval
2018-11-19 7:57 ` Ming Lei
2018-11-19 7:57 ` [Cluster-devel] " Ming Lei
2018-11-19 7:57 ` Ming Lei
2018-11-19 7:57 ` Ming Lei
2018-11-16 13:34 ` Christoph Hellwig
2018-11-16 13:34 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:34 ` Christoph Hellwig
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
2018-11-15 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-16 0:20 ` Omar Sandoval
2018-11-16 0:20 ` [Cluster-devel] " Omar Sandoval
2018-11-16 0:20 ` Omar Sandoval
2018-11-16 0:20 ` Omar Sandoval
2018-11-16 13:36 ` Christoph Hellwig
2018-11-16 13:36 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:36 ` Christoph Hellwig
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
2018-11-15 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-16 0:21 ` Omar Sandoval
2018-11-16 0:21 ` [Cluster-devel] " Omar Sandoval
2018-11-16 0:21 ` Omar Sandoval
2018-11-16 0:21 ` Omar Sandoval
2018-11-16 13:37 ` Christoph Hellwig
2018-11-16 13:37 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:37 ` Christoph Hellwig
2018-11-16 13:37 ` Christoph Hellwig
2018-11-19 8:09 ` Ming Lei
2018-11-19 8:09 ` [Cluster-devel] " Ming Lei
2018-11-19 8:09 ` Ming Lei
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
2018-11-15 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-16 0:23 ` Omar Sandoval
2018-11-16 0:23 ` [Cluster-devel] " Omar Sandoval
2018-11-16 0:23 ` Omar Sandoval
2018-11-16 0:23 ` Omar Sandoval
2018-11-19 8:15 ` Ming Lei
2018-11-19 8:15 ` [Cluster-devel] " Ming Lei
2018-11-19 8:15 ` Ming Lei
2018-11-19 8:15 ` Ming Lei
2018-11-16 13:38 ` Christoph Hellwig
2018-11-16 13:38 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:38 ` Christoph Hellwig
2018-11-16 13:38 ` Christoph Hellwig
2018-11-19 8:19 ` Ming Lei
2018-11-19 8:19 ` [Cluster-devel] " Ming Lei
2018-11-19 8:19 ` Ming Lei
2018-11-19 8:19 ` Ming Lei
2018-11-19 8:24 ` Christoph Hellwig
2018-11-19 8:24 ` [Cluster-devel] " Christoph Hellwig
2018-11-19 8:24 ` Christoph Hellwig
2018-11-19 8:24 ` Christoph Hellwig
2018-11-15 8:52 ` [PATCH V10 09/19] block: introduce bio_bvecs() Ming Lei
2018-11-15 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-16 0:26 ` Omar Sandoval
2018-11-16 0:26 ` [Cluster-devel] " Omar Sandoval
2018-11-16 0:26 ` Omar Sandoval
2018-11-16 0:26 ` Omar Sandoval
2018-11-16 13:45 ` Christoph Hellwig
2018-11-16 13:45 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:45 ` Christoph Hellwig
2018-11-16 13:45 ` Christoph Hellwig
2018-11-19 8:21 ` Ming Lei
2018-11-19 8:21 ` [Cluster-devel] " Ming Lei
2018-11-19 8:21 ` Ming Lei
2018-11-19 8:21 ` Ming Lei
2018-11-20 0:49 ` Sagi Grimberg
2018-11-20 0:49 ` [Cluster-devel] " Sagi Grimberg
2018-11-20 0:49 ` Sagi Grimberg
2018-11-20 0:49 ` Sagi Grimberg
2018-11-20 16:16 ` Christoph Hellwig
2018-11-20 16:16 ` [Cluster-devel] " Christoph Hellwig
2018-11-20 16:16 ` Christoph Hellwig
2018-11-20 16:16 ` Christoph Hellwig
2018-11-20 20:11 ` Sagi Grimberg
2018-11-20 20:11 ` [Cluster-devel] " Sagi Grimberg
2018-11-20 20:11 ` Sagi Grimberg
2018-11-20 20:11 ` Sagi Grimberg
2018-11-21 0:59 ` Ming Lei [this message]
2018-11-21 0:59 ` [Cluster-devel] " Ming Lei
2018-11-21 0:59 ` Ming Lei
2018-11-21 0:59 ` Ming Lei
2018-11-21 3:20 ` Sagi Grimberg
2018-11-21 3:20 ` [Cluster-devel] " Sagi Grimberg
2018-11-21 3:20 ` Sagi Grimberg
2018-11-21 3:20 ` Sagi Grimberg
2018-11-21 3:44 ` Ming Lei
2018-11-21 3:44 ` [Cluster-devel] " Ming Lei
2018-11-21 3:44 ` Ming Lei
2018-11-21 3:44 ` Ming Lei
2018-11-21 4:25 ` Sagi Grimberg
2018-11-21 4:25 ` [Cluster-devel] " Sagi Grimberg
2018-11-21 4:25 ` Sagi Grimberg
2018-11-21 4:25 ` Sagi Grimberg
2018-11-21 4:42 ` Sagi Grimberg
2018-11-21 4:42 ` [Cluster-devel] " Sagi Grimberg
2018-11-21 4:42 ` Sagi Grimberg
2018-11-21 4:42 ` Sagi Grimberg
2018-11-21 5:04 ` Ming Lei
2018-11-21 5:04 ` [Cluster-devel] " Ming Lei
2018-11-21 5:04 ` Ming Lei
2018-11-21 5:04 ` Ming Lei
2018-11-21 5:35 ` Sagi Grimberg
2018-11-21 5:35 ` [Cluster-devel] " Sagi Grimberg
2018-11-21 5:35 ` Sagi Grimberg
2018-11-21 5:35 ` Sagi Grimberg
2018-11-21 8:46 ` Christoph Hellwig
2018-11-21 8:46 ` [Cluster-devel] " Christoph Hellwig
2018-11-21 8:46 ` Christoph Hellwig
2018-11-21 8:46 ` Christoph Hellwig
2018-11-21 10:19 ` Ming Lei
2018-11-21 10:19 ` [Cluster-devel] " Ming Lei
2018-11-21 10:19 ` Ming Lei
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
2018-11-15 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-16 0:40 ` Omar Sandoval
2018-11-16 0:40 ` [Cluster-devel] " Omar Sandoval
2018-11-16 0:40 ` Omar Sandoval
2018-11-16 0:40 ` Omar Sandoval
2018-11-19 8:25 ` Ming Lei
2018-11-19 8:25 ` [Cluster-devel] " Ming Lei
2018-11-19 8:25 ` Ming Lei
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
2018-11-15 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-16 0:44 ` Omar Sandoval
2018-11-16 0:44 ` [Cluster-devel] " Omar Sandoval
2018-11-16 0:44 ` Omar Sandoval
2018-11-16 0:44 ` Omar Sandoval
2018-11-19 8:27 ` Ming Lei
2018-11-19 8:27 ` [Cluster-devel] " Ming Lei
2018-11-19 8:27 ` Ming Lei
2018-11-19 8:27 ` Ming Lei
2018-11-16 13:46 ` Christoph Hellwig
2018-11-16 13:46 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:46 ` Christoph Hellwig
2018-11-16 13:46 ` Christoph Hellwig
2018-11-19 8:28 ` Ming Lei
2018-11-19 8:28 ` [Cluster-devel] " Ming Lei
2018-11-19 8:28 ` Ming Lei
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 8:52 ` [Cluster-devel] " Ming Lei
2018-11-15 8:52 ` Ming Lei
2018-11-15 12:42 ` David Sterba
2018-11-15 12:42 ` [Cluster-devel] " David Sterba
2018-11-15 12:42 ` David Sterba
2018-11-19 8:29 ` Ming Lei
2018-11-19 8:29 ` [Cluster-devel] " Ming Lei
2018-11-19 8:29 ` Ming Lei
2018-11-16 1:22 ` Omar Sandoval
2018-11-16 1:22 ` [Cluster-devel] " Omar Sandoval
2018-11-16 1:22 ` Omar Sandoval
2018-11-19 8:32 ` Ming Lei
2018-11-19 8:32 ` [Cluster-devel] " Ming Lei
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
2018-11-15 8:53 ` [Cluster-devel] " Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-16 1:46 ` Omar Sandoval
2018-11-16 1:46 ` [Cluster-devel] " Omar Sandoval
2018-11-16 1:46 ` Omar Sandoval
2018-11-16 1:46 ` Omar Sandoval
2018-11-19 8:35 ` Ming Lei
2018-11-19 8:35 ` [Cluster-devel] " Ming Lei
2018-11-19 8:35 ` Ming Lei
2018-11-19 8:35 ` Ming Lei
2018-11-16 13:49 ` Christoph Hellwig
2018-11-16 13:49 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:49 ` Christoph Hellwig
2018-11-16 13:49 ` Christoph Hellwig
2018-11-19 8:39 ` Ming Lei
2018-11-19 8:39 ` [Cluster-devel] " Ming Lei
2018-11-19 8:39 ` Ming Lei
2018-11-19 8:39 ` Ming Lei
2018-11-15 8:53 ` [PATCH V10 14/19] block: enable multipage bvecs Ming Lei
2018-11-15 8:53 ` [Cluster-devel] " Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-16 1:56 ` Omar Sandoval
2018-11-16 1:56 ` [Cluster-devel] " Omar Sandoval
2018-11-16 1:56 ` Omar Sandoval
2018-11-16 1:56 ` Omar Sandoval
2018-11-19 8:45 ` Ming Lei
2018-11-19 8:45 ` [Cluster-devel] " Ming Lei
2018-11-19 8:45 ` Ming Lei
2018-11-19 8:45 ` Ming Lei
2018-11-16 13:53 ` Christoph Hellwig
2018-11-16 13:53 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:53 ` Christoph Hellwig
2018-11-16 13:53 ` Christoph Hellwig
2018-11-19 9:00 ` Ming Lei
2018-11-19 9:00 ` [Cluster-devel] " Ming Lei
2018-11-19 9:00 ` Ming Lei
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
2018-11-15 8:53 ` [Cluster-devel] " Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-16 1:59 ` Omar Sandoval
2018-11-16 1:59 ` [Cluster-devel] " Omar Sandoval
2018-11-16 1:59 ` Omar Sandoval
2018-11-16 1:59 ` Omar Sandoval
2018-11-19 9:04 ` Ming Lei
2018-11-19 9:04 ` [Cluster-devel] " Ming Lei
2018-11-19 9:04 ` Ming Lei
2018-11-19 9:04 ` Ming Lei
2018-11-20 2:45 ` Huang, Ying
2018-11-20 2:45 ` [Cluster-devel] " Huang, Ying
2018-11-20 2:45 ` Huang, Ying
2018-11-20 2:45 ` Huang, Ying
2018-11-20 2:45 ` Huang, Ying
2018-11-20 2:45 ` Huang, Ying
2018-11-16 13:53 ` Christoph Hellwig
2018-11-16 13:53 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:53 ` Christoph Hellwig
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
2018-11-15 8:53 ` [Cluster-devel] " Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-16 2:05 ` Omar Sandoval
2018-11-16 2:05 ` [Cluster-devel] " Omar Sandoval
2018-11-16 2:05 ` Omar Sandoval
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
2018-11-15 8:53 ` [Cluster-devel] " Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-16 2:11 ` Omar Sandoval
2018-11-16 2:11 ` [Cluster-devel] " Omar Sandoval
2018-11-16 2:11 ` Omar Sandoval
2018-11-16 2:11 ` Omar Sandoval
2018-11-16 2:11 ` Omar Sandoval
2018-11-19 9:06 ` Ming Lei
2018-11-19 9:06 ` [Cluster-devel] " Ming Lei
2018-11-19 9:06 ` Ming Lei
2018-11-19 9:06 ` Ming Lei
2018-11-16 13:55 ` Christoph Hellwig
2018-11-16 13:55 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:55 ` Christoph Hellwig
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
2018-11-15 8:53 ` [Cluster-devel] " Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-16 2:18 ` Omar Sandoval
2018-11-16 2:18 ` [Cluster-devel] " Omar Sandoval
2018-11-16 2:18 ` Omar Sandoval
2018-11-16 2:18 ` Omar Sandoval
2018-11-16 13:59 ` Christoph Hellwig
2018-11-16 13:59 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:59 ` Christoph Hellwig
2018-11-16 13:59 ` Christoph Hellwig
2018-11-16 16:40 ` Omar Sandoval
2018-11-16 16:40 ` [Cluster-devel] " Omar Sandoval
2018-11-16 16:40 ` Omar Sandoval
2018-11-16 16:40 ` Omar Sandoval
2018-11-19 9:17 ` Ming Lei
2018-11-19 9:17 ` [Cluster-devel] " Ming Lei
2018-11-19 9:17 ` Ming Lei
2018-11-19 9:17 ` Ming Lei
2018-11-16 13:58 ` Christoph Hellwig
2018-11-16 13:58 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:58 ` Christoph Hellwig
2018-11-16 13:58 ` Christoph Hellwig
2018-11-19 9:20 ` Ming Lei
2018-11-19 9:20 ` [Cluster-devel] " Ming Lei
2018-11-19 9:20 ` Ming Lei
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
2018-11-15 8:53 ` [Cluster-devel] " Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-15 8:53 ` Ming Lei
2018-11-16 13:59 ` Christoph Hellwig
2018-11-16 13:59 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 13:59 ` Christoph Hellwig
2018-11-16 13:59 ` Christoph Hellwig
2018-11-16 16:40 ` Omar Sandoval
2018-11-16 16:40 ` [Cluster-devel] " Omar Sandoval
2018-11-16 16:40 ` Omar Sandoval
2018-11-16 16:40 ` Omar Sandoval
2018-11-16 14:03 ` [PATCH V10 00/19] block: support multi-page bvec Christoph Hellwig
2018-11-16 14:03 ` [Cluster-devel] " Christoph Hellwig
2018-11-16 14:03 ` Christoph Hellwig
2018-11-16 14:03 ` Christoph Hellwig
2018-11-17 2:42 ` Ming Lei
2018-11-17 2:42 ` [Cluster-devel] " Ming Lei
2018-11-17 2:42 ` Ming Lei
2018-11-17 2:42 ` Ming Lei
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