Re: [PATCH 1/2] hpsa: limit transfer length to 1MB

From	Yadan Fan <ydfan@suse.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH 1/2] hpsa: limit transfer length to 1MB
Date	2017-06-23 11:20 +0200
Message-ID	<tVsUV-hI-3@gated-at.bofh.it> (permalink)
References	<tV7dL-3dT-9@gated-at.bofh.it> <tV7dL-3dT-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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Hi Johannes,


On 2017年06月22日 18:06, Johannes Thumshirn wrote:
> On Thu, Jun 22, 2017 at 05:58:44PM +0800, Yadan Fan wrote:
>> The hpsa firmware will bypass the cache for any request larger
>> than 1MB, so we should cap the request size to avoid any
>> performance degradation in SLE12-SP2.
> Upstream doesn't care too much about SLES.
>
>> References: bsc#1025461
> and our internal Bugzilla IDs
>
>
> How about:
> The hpsa firmware will bypass the cache for any requests larger than 1MB, so
> we shoould cap the request size to avoid any performance regressions in
> kernels later than 4.3
>
> The same applies for Patch 2/2

Yes, I agree so, I will resend the modified patches.

Thanks,
Yadan

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Re: [PATCH 1/2] hpsa: limit transfer length to 1MB Johannes Thumshirn <jthumshirn@suse.de> - 2017-06-22 12:10 +0200
  Re: [PATCH 1/2] hpsa: limit transfer length to 1MB Yadan Fan <ydfan@suse.com> - 2017-06-23 11:20 +0200

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