From: Christoph Hellwig <hch@lst.de>
To: Ming Lin <mlin@kernel.org>
Cc: Mike Snitzer <snitzer@redhat.com>, Neil Brown <neilb@suse.de>,
Ming Lei <ming.lei@canonical.com>,
dm-devel@redhat.com, Christoph Hellwig <hch@lst.de>,
Alasdair Kergon <agk@redhat.com>,
Lars Ellenberg <drbd-dev@lists.linbit.com>,
Philip Kelleher <pjk1939@linux.vnet.ibm.com>,
Joshua Morris <josh.h.morris@us.ibm.com>,
Christoph Hellwig <hch@infradead.org>,
Kent Overstreet <kent.overstreet@gmail.com>,
Nitin Gupta <ngupta@vflare.org>,
Ming Lin <ming.l@ssi.samsung.com>,
Oleg Drokin <oleg.drokin@intel.com>,
Al Viro <viro@zeniv.linux.org.uk>, Jens Axboe <axboe@kernel.dk>,
Andreas Dilger <andreas.dilger@intel.com>,
Geoff Levand <geoff@infradead.org>, Jiri Kosina <jkosina@suse.cz>,
lkml <linux-kernel@vger.kernel.org>, Jim Paris <jim@jtan.com>,
Minchan Kim <minchan@kernel.org>, Dongsu Park <dpark@posteo.net>,
drbd-user@lists.linbit.com
Subject: Re: [Drbd-dev] [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios
Date: Tue, 4 Aug 2015 13:36:26 +0200 [thread overview]
Message-ID: <20150804113626.GA12682@lst.de> (raw)
In-Reply-To: <1438581502.26596.24.camel@hasee>
On Sun, Aug 02, 2015 at 10:58:22PM -0700, Ming Lin wrote:
> I think the important thing is the late splitting for regular bio.
> For discard/write_same bio, how about just don't do late splitting?
I'd hate having to special case them even more. Especially as the
discard splitting is nasty and we really don't want to send giant
discards by default anyway (see Jens' patches to limit discard size
by default).
So I'd recommend to keep everything as-is, just make sure we don't
overflow bi_size.
next prev parent reply other threads:[~2015-08-04 11:36 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-06 7:44 [Drbd-dev] [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios Ming Lin
2015-07-06 7:44 ` [Drbd-dev] [PATCH v5 08/11] block: kill merge_bvec_fn() completely Ming Lin
2015-07-31 19:23 ` [Drbd-dev] [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios Mike Snitzer
2015-07-31 21:19 ` Ming Lin
2015-07-31 21:38 ` Mike Snitzer
2015-08-01 6:58 ` Ming Lin
2015-08-01 16:33 ` Mike Snitzer
2015-08-03 5:58 ` Ming Lin
2015-08-04 11:36 ` Christoph Hellwig [this message]
2015-08-05 6:03 ` Ming Lin
2015-08-07 7:30 ` Christoph Hellwig
2015-08-07 23:40 ` Ming Lin
2015-09-11 13:20 ` Kent Overstreet
2015-08-08 5:17 ` Ming Lin
2015-09-11 13:20 ` Kent Overstreet
2015-08-08 12:35 ` Christoph Hellwig
2015-09-11 13:21 ` [Drbd-dev] [dm-devel] " Hannes Reinecke
2015-09-11 13:21 ` Kent Overstreet
2015-09-11 13:22 ` Hannes Reinecke
[not found] ` <20150807000004.GB30757@moria.home.lan>
2015-08-07 7:30 ` [Drbd-dev] " Christoph Hellwig
2015-08-08 16:19 ` [Drbd-dev] [dm-devel] " Martin K. Petersen
2015-08-09 5:59 ` Ming Lin
2015-08-09 6:41 ` Christoph Hellwig
2015-08-09 6:55 ` Ming Lin
2015-08-09 7:01 ` Christoph Hellwig
2015-08-09 7:18 ` Ming Lin
2015-08-10 15:02 ` [Drbd-dev] " Mike Snitzer
2015-08-10 16:14 ` Ming Lin
2015-08-10 16:18 ` Ming Lin
2015-08-10 16:40 ` Martin K. Petersen
2015-08-10 18:13 ` Mike Snitzer
2015-08-10 22:30 ` Ming Lin
2015-08-10 16:22 ` Martin K. Petersen
2015-08-10 18:18 ` Ming Lin
2015-08-11 2:00 ` Martin K. Petersen
2015-08-11 2:41 ` Mike Snitzer
2015-08-11 17:36 ` Martin K. Petersen
2015-08-11 17:47 ` Mike Snitzer
2015-08-11 18:01 ` [Drbd-dev] [dm-devel] " Martin K. Petersen
2015-09-11 13:22 ` [Drbd-dev] " Kent Overstreet
2015-08-11 14:08 ` Mike Snitzer
2015-08-11 17:49 ` Martin K. Petersen
2015-08-11 18:05 ` Martin K. Petersen
2015-08-11 20:56 ` Ming Lin
2015-08-12 0:24 ` Martin K. Petersen
2015-08-12 4:41 ` Ming Lin
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