linux-kernel - Re: mmap with huge page

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Message-ID: <20180718103709.GB1431@dhcp22.suse.cz>
Date:   Wed, 18 Jul 2018 12:37:09 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     David Frank <david_frank95@...oo.com>
Cc:     Kernelnewbies <kernelnewbies@...nelnewbies.org>,
        Linux-mm <linux-mm@...ck.org>,
        LKML <linux-kernel@...r.kernel.org>,
        Mike Kravetz <mike.kravetz@...cle.com>
Subject: Re: mmap with huge page

On Wed 18-07-18 00:01:10, David Frank wrote:
>  Thanks Mike.  I read the doc, which is not explicit on the non used file taking up huge page count 

What do you consider non user file? The file contains a data somebody
might want to read later. You cannot simply remove it. This is not
different to any other in memory filesystem (e.g. tmpfs, ramfs)
-- 
Michal Hocko
SUSE Labs