linux-kernel - Re: [PATCH net-next v5 1/5] mm: add a signature in struct page

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Message-ID: <CAFnufp0jwSMx_-CeFguNnec0pC0WNcPnhobiVE0sH9Jo9tjK+g@mail.gmail.com>
Date:   Tue, 18 May 2021 17:44:21 +0200
From:   Matteo Croce <mcroce@...ux.microsoft.com>
To:     Matthew Wilcox <willy@...radead.org>
Cc:     netdev@...r.kernel.org, linux-mm@...ck.org,
        Ayush Sawal <ayush.sawal@...lsio.com>,
        Vinay Kumar Yadav <vinay.yadav@...lsio.com>,
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        Sven Auhagen <sven.auhagen@...eatech.de>
Subject: Re: [PATCH net-next v5 1/5] mm: add a signature in struct page

On Fri, May 14, 2021 at 3:01 AM Matthew Wilcox <willy@...radead.org> wrote:
>
> I feel like I want to document the pfmemalloc bit in mm_types.h,
> but I don't have a concrete suggestion yet.
>

Maybe simply:

/* Bit zero is set
 * Bit one if pfmemalloc page
 */
 unsigned long compound_head;

Regards,
-- 
per aspera ad upstream