netdev - Re: [PATCH 10/10] mm: replace access_process_vm() write parameter with gup

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Message-ID: <20161017092352.GH30704@axis.com>
Date:   Mon, 17 Oct 2016 11:23:52 +0200
From:   Jesper Nilsson <jesper.nilsson@...s.com>
To:     Lorenzo Stoakes <lstoakes@...il.com>
Cc:     linux-mm@...ck.org, linux-mips@...ux-mips.org,
        linux-fbdev@...r.kernel.org, Jan Kara <jack@...e.cz>,
        kvm@...r.kernel.org, linux-sh@...r.kernel.org,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        dri-devel@...ts.freedesktop.org, netdev@...r.kernel.org,
        sparclinux@...r.kernel.org, linux-ia64@...r.kernel.org,
        linux-s390@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-scsi@...r.kernel.org, linux-rdma@...r.kernel.org,
        x86@...nel.org, Hugh Dickins <hughd@...gle.com>,
        linux-media@...r.kernel.org, Rik van Riel <riel@...hat.com>,
        intel-gfx@...ts.freedesktop.org,
        adi-buildroot-devel@...ts.sourceforge.net,
        ceph-devel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-cris-kernel@...s.com,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        linux-security-module@...r.kernel.org, linux-alpha@...r.kernel.org,
        linux-fsdevel@...r.kernel.org,
        Andrew Morton <akpm@...ux-foundation.org>,
        Mel Gorman <mgorman@...hsingularity.net>
Subject: Re: [PATCH 10/10] mm: replace access_process_vm() write parameter
 with gup_flags

On Thu, Oct 13, 2016 at 01:20:20AM +0100, Lorenzo Stoakes wrote:
> This patch removes the write parameter from access_process_vm() and replaces it
> with a gup_flags parameter as use of this function previously _implied_
> FOLL_FORCE, whereas after this patch callers explicitly pass this flag.
> 
> We make this explicit as use of FOLL_FORCE can result in surprising behaviour
> (and hence bugs) within the mm subsystem.
> 
> Signed-off-by: Lorenzo Stoakes <lstoakes@...il.com>
> ---
>  arch/cris/arch-v32/kernel/ptrace.c |  4 ++--

For the CRIS part:

Acked-by: Jesper Nilsson <jesper.nilsson@...s.com>

/^JN - Jesper Nilsson
-- 
               Jesper Nilsson -- jesper.nilsson@...s.com