Re: [PATCH] don't use mmap() to hash files

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Subject: Re: [PATCH] don't use mmap() to hash files
From: Paolo Bonzini <bonzini@xxxxxxx>
Date: Mon, 15 Feb 2010 08:48:06 +0100
Cc: Johannes Schindelin <Johannes.Schindelin@xxxxxx>, Zygo Blaxell <zblaxell@xxxxxxxxxxxxxx>, Ilari Liusvaara <ilari.liusvaara@xxxxxxxxxxx>, Thomas Rast <trast@xxxxxxxxxxxxxxx>, Jonathan Nieder <jrnieder@xxxxxxxxx>, git@xxxxxxxxxxxxxxx
In-reply-to: <37fcd2781002141156n7e2b9673s1eb6c12869facdb2@xxxxxxxxxxxxxx>
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On 02/14/2010 08:56 PM, Dmitry Potapov wrote:

It may not work without enough swap space

No, the kernel will use the file itself as "swap" if it has to page outthe memory (since the mmap is PROT_READ).


Paolo
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