linux-kernel - Re: [PATCH v3 1/2] mm/page_ref: use atomic_set_release in page_ref

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Date:   Mon, 12 Feb 2018 17:07:46 +0300
From:   "Kirill A. Shutemov" <kirill@...temov.name>
To:     Konstantin Khlebnikov <khlebnikov@...dex-team.ru>
Cc:     linux-mm@...ck.org, Andrew Morton <akpm@...ux-foundation.org>,
        linux-kernel@...r.kernel.org, Michal Hocko <mhocko@...e.com>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Nicholas Piggin <npiggin@...il.com>
Subject: Re: [PATCH v3 1/2] mm/page_ref: use atomic_set_release in
 page_ref_unfreeze

On Mon, Feb 12, 2018 at 04:58:50PM +0300, Konstantin Khlebnikov wrote:
> page_ref_unfreeze() has exactly that semantic. No functional
> changes: just minus one barrier and proper handling of PPro errata.
> 
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@...dex-team.ru>

Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>

-- 
 Kirill A. Shutemov