linux-kernel - Re: [PATCH] mm/mincore: allow for making sys

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Message-ID: <nycvar.YFH.7.76.1901081235380.16954@cbobk.fhfr.pm>
Date:   Tue, 8 Jan 2019 12:37:46 +0100 (CET)
From:   Jiri Kosina <jikos@...nel.org>
To:     Bernd Petrovitsch <bernd@...rovitsch.priv.at>
cc:     Vlastimil Babka <vbabka@...e.cz>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        Peter Zijlstra <peterz@...radead.org>,
        Michal Hocko <mhocko@...e.com>, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, linux-api@...r.kernel.org
Subject: Re: [PATCH] mm/mincore: allow for making sys_mincore() privileged

On Tue, 8 Jan 2019, Bernd Petrovitsch wrote:

> Shouldn't the application use e.g. mlock()/.... to guarantee no page 
> faults in the first place?

Calling mincore() on pages you've just mlock()ed is sort of pointless 
though.

-- 
Jiri Kosina
SUSE Labs