Re: [PATCH V4 6/6] proc: show MADV_FREE pages info in smaps

[Minchan Kim]

On Wed, Feb 22, 2017 at 10:50:44AM -0800, Shaohua Li wrote:
> show MADV_FREE pages info of each vma in smaps. The interface is for
> diganose or monitoring purpose, userspace could use it to understand
> what happens in the application. Since userspace could dirty MADV_FREE
> pages without notice from kernel, this interface is the only place we
> can get accurate accounting info about MADV_FREE pages.
> 
> Cc: Michal Hocko <mho...@suse.com>
> Cc: Minchan Kim <minc...@kernel.org>
> Cc: Hugh Dickins <hu...@google.com>
> Cc: Johannes Weiner <han...@cmpxchg.org>
> Cc: Rik van Riel <r...@redhat.com>
> Cc: Mel Gorman <mgor...@techsingularity.net>
> Cc: Andrew Morton <a...@linux-foundation.org>
> Signed-off-by: Shaohua Li <s...@fb.com>
Acked-by: Minchan Kim <minc...@kernel.org>