linux-kernel - Re: [PATCH] mm: check VMA flags to avoid invalid PROT

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Date:   Fri, 7 Oct 2016 19:26:33 +0100
From:   Lorenzo Stoakes <lstoakes@...il.com>
To:     Hugh Dickins <hughd@...gle.com>
Cc:     Linus Torvalds <torvalds@...ux-foundation.org>,
        Jan Kara <jack@...e.cz>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Rik van Riel <riel@...hat.com>,
        linux-mm <linux-mm@...ck.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        tbsaunde@...aunde.org, robert@...llahan.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] mm: check VMA flags to avoid invalid PROT_NONE NUMA
 balancing

On Fri, Oct 07, 2016 at 11:16:26AM -0700, Hugh Dickins wrote:
>
> Adding Jan Kara (and Dave Hansen) to the Cc list: I think they were
> pursuing get_user_pages() cleanups last year (which would remove the
> force option from most callers anyway), and I've lost track of where
> that all got to.  Lorenzo, please don't expend a lot of effort before
> checking with Jan.

Sure, no problem. I have the callers noted down + the surrounding code in my
wetware 'L3 cache' so it's not a huge effort to get a draft patch written, but
I'll hold off on sending anything until I hear from Jan.