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

From: Paolo Bonzini <bonzini@gnu.org>
Date: Feb 15, 2010, 07:48 UTC
Message-ID: <4B78FC36.1090108@gnu.org>
In-Reply-To: <37fcd2781002141156n7e2b9673s1eb6c12869facdb2@mail.gmail.com>

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 out the memory (since the mmap is PROT_READ).

Paolo

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