linux-kernel - Re: [PATCH v4 03/16] mm/swap: Optimise get_shadow_from_swap

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Message-ID: <20201114095354.GD19102@lst.de>
Date:   Sat, 14 Nov 2020 10:53:54 +0100
From:   Christoph Hellwig <hch@....de>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        akpm@...ux-foundation.org, hughd@...gle.com, hch@....de,
        hannes@...xchg.org, yang.shi@...ux.alibaba.com,
        dchinner@...hat.com, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 03/16] mm/swap: Optimise get_shadow_from_swap_cache

On Thu, Nov 12, 2020 at 09:26:28PM +0000, Matthew Wilcox (Oracle) wrote:
> There's no need to get a reference to the page, just load the entry and
> see if it's a shadow entry.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>

Looks good,

Reviewed-by: Christoph Hellwig <hch@....de>