linux-kernel - Re: [PATCH] mm/damon: minor cleanup for damon_pa

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Message-ID: <YjHwFyc5WfCQAgVh@casper.infradead.org>
Date:   Wed, 16 Mar 2022 14:11:35 +0000
From:   Matthew Wilcox <willy@...radead.org>
To:     Miaohe Lin <linmiaohe@...wei.com>
Cc:     akpm@...ux-foundation.org, sj@...nel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] mm/damon: minor cleanup for damon_pa_young

On Wed, Mar 16, 2022 at 04:15:28PM +0800, Miaohe Lin wrote:
> if need_lock is true but folio_trylock fails, we should return false
> instead of NULL to match the return value type exactly. No functional
> change intended.

Thanks.  Given the extensive changes I've made to this function for
this merge window, I've added it to my for-next tree.