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Groups > linux.kernel > #1202166 > unrolled thread
| Started by | Kent Overstreet <kent.overstreet@gmail.com> |
|---|---|
| First post | 2015-08-07 02:10 +0200 |
| Last post | 2015-08-07 09:40 +0200 |
| Articles | 2 — 2 participants |
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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
| From | Kent Overstreet <kent.overstreet@gmail.com> |
|---|---|
| Date | 2015-08-07 02:10 +0200 |
| Subject | Re: [PATCH v5 01/11] block: make generic_make_request handle arbitrarily sized bios |
| Message-ID | <pUDou-7TB-1@gated-at.bofh.it> |
On Tue, Aug 04, 2015 at 01:36:26PM +0200, Christoph Hellwig wrote: > 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). Why is it that we don't want to send giant discards? Is it a latency issue? -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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| From | Christoph Hellwig <hch@lst.de> |
|---|---|
| Date | 2015-08-07 09:40 +0200 |
| Message-ID | <pUKpY-1dl-19@gated-at.bofh.it> |
| In reply to | #1202166 |
On Thu, Aug 06, 2015 at 05:00:04PM -0700, Kent Overstreet wrote: > Why is it that we don't want to send giant discards? Is it a latency issue? Yes. Take a look at the "Configurable max discard size" thread(s). -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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