linux-kernel - Re: [PATCH v6 20/27] mm/filemap: Add __lock_folio_or

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Message-ID: <20210406135725.GS3062550@infradead.org>
Date:   Tue, 6 Apr 2021 14:57:25 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-cachefs@...hat.com,
        linux-afs@...ts.infradead.org
Subject: Re: [PATCH v6 20/27] mm/filemap: Add __lock_folio_or_retry

On Wed, Mar 31, 2021 at 07:47:21PM +0100, Matthew Wilcox (Oracle) wrote:
> Convert __lock_page_or_retry() to __lock_folio_or_retry().  This actually
> saves 4 bytes in the only caller of lock_page_or_retry() (due to better
> register allocation) and saves the 20 byte cost of calling page_folio()
> in __lock_folio_or_retry() for a total saving of 24 bytes.

Looks good,

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