Re: [PATCH v2 00/13] MADV_FREE support

From	Pavel Machek <pavel@ucw.cz>
Newsgroups	linux.kernel
Subject	Re: [PATCH v2 00/13] MADV_FREE support
Date	2015-12-05 12:20 +0100
Message-ID	<qCj2F-kX-3@gated-at.bofh.it> (permalink)
References	<qqV3I-27u-7@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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On Wed 2015-11-04 10:25:54, Minchan Kim wrote:
> MADV_FREE is on linux-next so long time. The reason was two, I think.
> 
> 1. MADV_FREE code on reclaim path was really mess.

Could you explain what MADV_FREE does?

Comment in code says 'free the page only when there's memory
pressure'. So I mark my caches MADV_FREE, no memory pressure, I can
keep using it? And if there's memory pressure, what happens? I get
zeros? SIGSEGV?

Thanks,
								Pavel

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Re: [PATCH v2 00/13] MADV_FREE support Pavel Machek <pavel@ucw.cz> - 2015-12-05 12:20 +0100
  Re: [PATCH v2 00/13] MADV_FREE support Daniel Micay <danielmicay@gmail.com> - 2015-12-05 17:00 +0100

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