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@r>
Subject: Re: [PATCH V10 09/19] block: introduce bio_bvecs()
Date: Wed, 21 Nov 2018 11:44:16 +0800 [thread overview]
Message-ID: <20181121034415.GA8408@ming.t460p> (raw)
In-Reply-To: <2d9bee7a-f010-dcf4-1184-094101058584@grimberg.me>
On Tue, Nov 20, 2018 at 07:20:45PM -0800, Sagi Grimberg wrote:
>
> > 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(),
>
> I would like to avoid growing bvec tables and keep everything
> preallocated. Plus, a bvec_iter operates on a bvec which means
> we'll need a table there as well... Not liking it so far...
In case of bios in one request, we can't know how many bvecs there
are except for calling rq_bvecs(), so it may not be suitable to
preallocate the table. If you have to send the IO request in one send(),
runtime allocation may be inevitable.
If you don't require to send the IO request in one send(), you may send
one bio in one time, and just uses the bio's bvec table directly,
such as the single bio case in lo_rw_aio().
>
> > can this way avoid your blocking issue? You may see this
> > example in branch 'rq->bio != rq->biotail' of lo_rw_aio().
>
> This is exactly an example of not ignoring the bios...
Yeah, that is the most common example, given merge is enabled
in most of cases. If the driver or device doesn't care merge,
you can disable it and always get single bio request, then the
bio's bvec table can be reused for send().
>
> > 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()
>
> I'm not sure how this helps me either. Unless we can set a bvec_iter to
> span bvecs or have an abstract bio crossing when we re-initialize the
> bvec_iter I don't see how I can ignore bios completely...
rq_for_each_bvec() will iterate over all bvecs from all bios, so you
needn't to see any bio in this req.
rq_bvecs() will return how many bvecs there are in this request(cover
all bios in this req)
>
> > 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.
>
> multipage-bvecs and nvme-tcp are going to conflict, so it would be good
> to coordinate on this. I think that nvme-tcp host needs some adjustments
> as setting a bvec_iter. I'm under the impression that the change is rather
> small and self-contained, but I'm not sure I have the full
> picture here.
I guess I may not get your exact requirement on block io iterator from nvme-tcp
too, :-(
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 11:44:16 +0800 [thread overview]
Message-ID: <20181121034415.GA8408@ming.t460p> (raw)
In-Reply-To: <2d9bee7a-f010-dcf4-1184-094101058584@grimberg.me>
On Tue, Nov 20, 2018 at 07:20:45PM -0800, Sagi Grimberg wrote:
>
> > 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(),
>
> I would like to avoid growing bvec tables and keep everything
> preallocated. Plus, a bvec_iter operates on a bvec which means
> we'll need a table there as well... Not liking it so far...
In case of bios in one request, we can't know how many bvecs there
are except for calling rq_bvecs(), so it may not be suitable to
preallocate the table. If you have to send the IO request in one send(),
runtime allocation may be inevitable.
If you don't require to send the IO request in one send(), you may send
one bio in one time, and just uses the bio's bvec table directly,
such as the single bio case in lo_rw_aio().
>
> > can this way avoid your blocking issue? You may see this
> > example in branch 'rq->bio != rq->biotail' of lo_rw_aio().
>
> This is exactly an example of not ignoring the bios...
Yeah, that is the most common example, given merge is enabled
in most of cases. If the driver or device doesn't care merge,
you can disable it and always get single bio request, then the
bio's bvec table can be reused for send().
>
> > 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()
>
> I'm not sure how this helps me either. Unless we can set a bvec_iter to
> span bvecs or have an abstract bio crossing when we re-initialize the
> bvec_iter I don't see how I can ignore bios completely...
rq_for_each_bvec() will iterate over all bvecs from all bios, so you
needn't to see any bio in this req.
rq_bvecs() will return how many bvecs there are in this request(cover
all bios in this req)
>
> > 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.
>
> multipage-bvecs and nvme-tcp are going to conflict, so it would be good
> to coordinate on this. I think that nvme-tcp host needs some adjustments
> as setting a bvec_iter. I'm under the impression that the change is rather
> small and self-contained, but I'm not sure I have the full
> picture here.
I guess I may not get your exact requirement on block io iterator from nvme-tcp
too, :-(
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 11:44:16 +0800 [thread overview]
Message-ID: <20181121034415.GA8408@ming.t460p> (raw)
In-Reply-To: <2d9bee7a-f010-dcf4-1184-094101058584@grimberg.me>
On Tue, Nov 20, 2018@07:20:45PM -0800, Sagi Grimberg wrote:
>
> > 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(),
>
> I would like to avoid growing bvec tables and keep everything
> preallocated. Plus, a bvec_iter operates on a bvec which means
> we'll need a table there as well... Not liking it so far...
In case of bios in one request, we can't know how many bvecs there
are except for calling rq_bvecs(), so it may not be suitable to
preallocate the table. If you have to send the IO request in one send(),
runtime allocation may be inevitable.
If you don't require to send the IO request in one send(), you may send
one bio in one time, and just uses the bio's bvec table directly,
such as the single bio case in lo_rw_aio().
>
> > can this way avoid your blocking issue? You may see this
> > example in branch 'rq->bio != rq->biotail' of lo_rw_aio().
>
> This is exactly an example of not ignoring the bios...
Yeah, that is the most common example, given merge is enabled
in most of cases. If the driver or device doesn't care merge,
you can disable it and always get single bio request, then the
bio's bvec table can be reused for send().
>
> > 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()
>
> I'm not sure how this helps me either. Unless we can set a bvec_iter to
> span bvecs or have an abstract bio crossing when we re-initialize the
> bvec_iter I don't see how I can ignore bios completely...
rq_for_each_bvec() will iterate over all bvecs from all bios, so you
needn't to see any bio in this req.
rq_bvecs() will return how many bvecs there are in this request(cover
all bios in this req)
>
> > 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.
>
> multipage-bvecs and nvme-tcp are going to conflict, so it would be good
> to coordinate on this. I think that nvme-tcp host needs some adjustments
> as setting a bvec_iter. I'm under the impression that the change is rather
> small and self-contained, but I'm not sure I have the full
> picture here.
I guess I may not get your exact requirement on block io iterator from nvme-tcp
too, :-(
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 11:44:16 +0800 [thread overview]
Message-ID: <20181121034415.GA8408@ming.t460p> (raw)
In-Reply-To: <2d9bee7a-f010-dcf4-1184-094101058584@grimberg.me>
On Tue, Nov 20, 2018 at 07:20:45PM -0800, Sagi Grimberg wrote:
>
> > 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(),
>
> I would like to avoid growing bvec tables and keep everything
> preallocated. Plus, a bvec_iter operates on a bvec which means
> we'll need a table there as well... Not liking it so far...
In case of bios in one request, we can't know how many bvecs there
are except for calling rq_bvecs(), so it may not be suitable to
preallocate the table. If you have to send the IO request in one send(),
runtime allocation may be inevitable.
If you don't require to send the IO request in one send(), you may send
one bio in one time, and just uses the bio's bvec table directly,
such as the single bio case in lo_rw_aio().
>
> > can this way avoid your blocking issue? You may see this
> > example in branch 'rq->bio != rq->biotail' of lo_rw_aio().
>
> This is exactly an example of not ignoring the bios...
Yeah, that is the most common example, given merge is enabled
in most of cases. If the driver or device doesn't care merge,
you can disable it and always get single bio request, then the
bio's bvec table can be reused for send().
>
> > 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()
>
> I'm not sure how this helps me either. Unless we can set a bvec_iter to
> span bvecs or have an abstract bio crossing when we re-initialize the
> bvec_iter I don't see how I can ignore bios completely...
rq_for_each_bvec() will iterate over all bvecs from all bios, so you
needn't to see any bio in this req.
rq_bvecs() will return how many bvecs there are in this request(cover
all bios in this req)
>
> > 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.
>
> multipage-bvecs and nvme-tcp are going to conflict, so it would be good
> to coordinate on this. I think that nvme-tcp host needs some adjustments
> as setting a bvec_iter. I'm under the impression that the change is rather
> small and self-contained, but I'm not sure I have the full
> picture here.
I guess I may not get your exact requirement on block io iterator from nvme-tcp
too, :-(
thanks,
Ming
next prev parent reply other threads:[~2018-11-21 3:44 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
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 [this message]
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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