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Date: Tue, 10 Apr 2018 04:56:51 -0700
From: Matthew Wilcox <willy@infradead.org>
To: Minchan Kim <minchan@kernel.org>
Cc: Chao Yu <yuchao0@huawei.com>, Jaegeuk Kim <jaegeuk@kernel.org>,
	Christopher Lameter <cl@linux.com>,
	Andrew Morton <akpm@linux-foundation.org>,
	linux-mm <linux-mm@kvack.org>, LKML <linux-kernel@vger.kernel.org>,
	Johannes Weiner <hannes@cmpxchg.org>, Jan Kara <jack@suse.cz>,
	Chris Fries <cfries@google.com>,
	linux-f2fs-devel@lists.sourceforge.net,
	linux-fsdevel@vger.kernel.org
Subject: Re: [PATCH] mm: workingset: fix NULL ptr dereference
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On Tue, Apr 10, 2018 at 11:59:03AM +0900, Minchan Kim wrote:
> Okay, I hope this version clear current concerns.

It doesn't.  The right place to warn about GFP_ZERO used with a
constructor is _slab_, like the patch I already sent.  We have no idea
what other places might have the same bug, and slab is the only place
to catch that.