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Re: [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios

From Christoph Hellwig <hch@lst.de>
Newsgroups linux.kernel
Subject Re: [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios
Date 2015-08-04 13:40 +0200
Message-ID <pTIJA-OZ-3@gated-at.bofh.it> (permalink)
References (2 earlier) <pSq2o-17l-43@gated-at.bofh.it> <pSqc4-1ju-53@gated-at.bofh.it> <pSyVY-5uK-15@gated-at.bofh.it> <pSHZh-1KK-7@gated-at.bofh.it> <pTgWZ-2bC-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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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.
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Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Ming Lin <mlin@kernel.org> - 2015-08-03 08:00 +0200
  Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Christoph Hellwig <hch@lst.de> - 2015-08-04 13:40 +0200
    Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Ming Lin <mlin@kernel.org> - 2015-08-05 08:10 +0200
      Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Christoph Hellwig <hch@lst.de> - 2015-08-07 09:40 +0200
        Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Ming Lin <mlin@kernel.org> - 2015-08-08 01:50 +0200
          Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Kent Overstreet <kent.overstreet@gmail.com> - 2015-08-08 02:40 +0200
            Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Ming Lin <mlin@kernel.org> - 2015-08-08 07:20 +0200
              Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Kent Overstreet <kent.overstreet@gmail.com> - 2015-08-08 07:30 +0200
                Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Christoph Hellwig <hch@lst.de> - 2015-08-08 14:40 +0200
          Re: [dm-devel] [PATCH v5 01/11] block: make generic_make_request  handle arbitrarily sized bios Hannes Reinecke <hare@suse.de> - 2015-08-08 11:00 +0200
            Re: [dm-devel] [PATCH v5 01/11] block: make generic_make_request  handle arbitrarily sized bios Kent Overstreet <kent.overstreet@gmail.com> - 2015-08-08 11:10 +0200
              Re: [dm-devel] [PATCH v5 01/11] block: make generic_make_request  handle arbitrarily sized bios Hannes Reinecke <hare@suse.de> - 2015-08-13 08:10 +0200
    Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Kent Overstreet <kent.overstreet@gmail.com> - 2015-08-07 02:10 +0200
      Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Christoph Hellwig <hch@lst.de> - 2015-08-07 09:40 +0200

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