Re: [PATCH 2/2] mmap2: clarify MAP_POPULATE

From: David Rientjes
Date: Thu May 14 2015 - 20:13:37 EST

On Wed, 13 May 2015, Michal Hocko wrote:

> From: Michal Hocko <mhocko@xxxxxxx>
> David Rientjes has noticed that MAP_POPULATE wording might promise much
> more than the kernel actually provides and intend to provide. The
> primary usage of the flag is to pre-fault the range. There is no
> guarantee that no major faults will happen later on. The pages might
> have been reclaimed by the time the process tries to access them.
> Signed-off-by: Michal Hocko <mhocko@xxxxxxx>

Acked-by: David Rientjes <rientjes@xxxxxxxxxx>

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