linux-kernel - Re: [PATCH] Add /proc/PID/{smaps, numa

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Message-ID: <20171024120142.vafkxul6atelxy5l@dhcp22.suse.cz>
Date:   Tue, 24 Oct 2017 14:01:42 +0200
From:   Michal Hocko <mhocko@...nel.org>
To:     Fan Du <fan.du@...el.com>
Cc:     akpm@...ux-foundation.org, hch@....de, dan.j.williams@...el.com,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] Add /proc/PID/{smaps, numa_maps} support for DAX

On Tue 24-10-17 15:52:01, Fan Du wrote:
> So user could check those interface for more detailed
> information about how much DAX mappings are currently
> created.
> 
> Here we use vma_is_dax method to find specific page
> struture with DAX {huge, normal}page mappings,
> vm_normal_page routine works as before without any
> impact on the existing logical where _vm_normal_page
> are called.

And like for any other user visible changes it should be CC to the
linux-api mailing list and a usecase which requires this information
provided as well.
-- 
Michal Hocko
SUSE Labs