linux-kernel - Re: [PATCH 1/2] mm: add locked parameter to get_user

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Message-ID: <20161107104918.GQ30704@axis.com>
Date:   Mon, 7 Nov 2016 11:49:18 +0100
From:   Jesper Nilsson <jesper.nilsson@...s.com>
To:     Lorenzo Stoakes <lstoakes@...il.com>
Cc:     linux-mm@...ck.org, devel@...verdev.osuosl.org,
        linux-ia64@...r.kernel.org, Rik van Riel <riel@...hat.com>,
        Jan Kara <jack@...e.cz>, kvm@...r.kernel.org,
        linux-cris-kernel@...s.com, linux-rdma@...r.kernel.org,
        Mel Gorman <mgorman@...hsingularity.net>,
        Dave Hansen <dave.hansen@...ux.intel.com>,
        Hugh Dickins <hughd@...gle.com>, linux-kernel@...r.kernel.org,
        dri-devel@...ts.freedesktop.org, Michal Hocko <mhocko@...nel.org>,
        Paolo Bonzini <pbonzini@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        linux-media@...r.kernel.org
Subject: Re: [PATCH 1/2] mm: add locked parameter to get_user_pages()

On Mon, Oct 31, 2016 at 10:02:27AM +0000, Lorenzo Stoakes wrote:
> This patch adds an int *locked parameter to get_user_pages() to allow
> VM_FAULT_RETRY faulting behaviour similar to get_user_pages_[un]locked().
> 
> It additionally clears the way for get_user_pages_locked() to be removed as its
> sole remaining useful characteristic was to allow for VM_FAULT_RETRY behaviour
> when faulting in pages.
> 
> It should not introduce any functional changes, however it does allow for
> subsequent changes to get_user_pages() callers to take advantage of
> VM_FAULT_RETRY.

For the cris-part:
Acked-by: Jesper Nilsson <jesper.nilsson@...s.com>

> Signed-off-by: Lorenzo Stoakes <lstoakes@...il.com>

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