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

From Kent Overstreet <kent.overstreet@gmail.com>
Newsgroups linux.kernel
Subject Re: [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios
Date 2015-08-08 07:30 +0200
Message-ID <pV4RI-65k-1@gated-at.bofh.it> (permalink)
References (5 earlier) <pU03L-17l-1@gated-at.bofh.it> <pUKpY-1dl-13@gated-at.bofh.it> <pUZyG-6z7-15@gated-at.bofh.it> <pV0l4-7Uh-11@gated-at.bofh.it> <pV4I1-5Ui-3@gated-at.bofh.it>
Organization linux.* mail to news gateway

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On Fri, Aug 07, 2015 at 10:17:43PM -0700, Ming Lin wrote:
> On Fri, Aug 7, 2015 at 5:30 PM, Kent Overstreet
> > Ideally we'd get upper layers out of the business of knowing about the queue
> > limits at all - that was the point of the patch series, after all.
> >
> > Instead of using UINT_MAX, would it work to just make the max 1 << 31 sectors?'
> 
> 1 << 31 = 2G bytes = 0x400000 sectors.
> 
> Yes, that works as long as it's multiple of granularity.

Is granularity required to be a power of two? One would hope, but looking at the
code that doesn't appear to be a requirement... ugh, that's terrible...
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Re: [PATCH v5 01/11] block: make generic_make_request handle  arbitrarily sized bios Ming Lin <mlin@kernel.org> - 2015-08-05 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

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