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Date: Tue, 24 Apr 2018 07:20:57 -0600
From: Michal Hocko <mhocko@kernel.org>
Subject: Re: [RFC] mm: kmemleak: replace __GFP_NOFAIL to GFP_NOWAIT in
 gfp_kmemleak_mask
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To: Chunyu Hu <chuhu.ncepu@gmail.com>
Cc: Dmitry Vyukov <dvyukov@google.com>, Catalin Marinas <catalin.marinas@arm.com>, Chunyu Hu <chuhu@redhat.com>, LKML <linux-kernel@vger.kernel.org>, Linux-MM <linux-mm@kvack.org>

On Mon 23-04-18 12:17:32, Chunyu Hu wrote:
[...]
> So if there is a new flag, it would be the 25th bits.

No new flags please. Can you simply store a simple bool into fail_page_alloc
and have save/restore api for that?

-- 
Michal Hocko
SUSE Labs