linux-kernel - Re: [PATCH] mm: softdirty: keep bit when zapping file pte

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Message-ID: <20140920080845.GX16395@moon>
Date:	Sat, 20 Sep 2014 12:08:45 +0400
From:	Cyrill Gorcunov <gorcunov@...il.com>
To:	Peter Feiner <pfeiner@...gle.com>
Cc:	linux-mm@...ck.org, linux-kernel@...r.kernel.org,
	Pavel Emelyanov <xemul@...allels.com>,
	Jamie Liu <jamieliu@...gle.com>,
	Hugh Dickins <hughd@...gle.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: [PATCH] mm: softdirty: keep bit when zapping file pte

On Sat, Sep 20, 2014 at 01:03:07AM -0700, Peter Feiner wrote:
> Fixes the same bug as b43790eedd31e9535b89bbfa45793919e9504c34 and
> 9aed8614af5a05cdaa32a0b78b0f1a424754a958 where the return value of
> pte_*mksoft_dirty was being ignored.
> 
> To be sure that no other pte/pmd "mk" function return values were
> being ignored, I annotated the functions in
> arch/x86/include/asm/pgtable.h with __must_check and rebuilt.
> 
> Signed-off-by: Peter Feiner <pfeiner@...gle.com>
Acked-by: Cyrill Gorcunov <gorcunov@...nvz.org>

I might be missing it, thanks a huge Peter!
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