linux-kernel - Re: [PATCH v4 08/16] iomap: Use mapping_seek_hole

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Date:   Sat, 14 Nov 2020 11:06:48 +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 08/16] iomap: Use mapping_seek_hole_data

On Thu, Nov 12, 2020 at 09:26:33PM +0000, Matthew Wilcox (Oracle) wrote:
> Enhance mapping_seek_hole_data() to handle partially uptodate pages and
> convert the iomap seek code to call it.

Maybe split this into two patches for the mapping_seek_hole_data
enhancement (which could use a little more of a commit log anyway..)
and the iomap switch?

> -static inline bool page_seek_match(struct page *page, bool seek_data)
> +static inline loff_t page_seek_hole_data(struct xa_state *xas,
> +		struct address_space *mapping, struct page *page,
> +		loff_t start, loff_t end, bool seek_data)

This seems like quite a huge function to force inline..