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Date:   Mon, 17 Aug 2020 19:36:15 -0700
From:   Jens Axboe <>
To:     "Matthew Wilcox (Oracle)" <>
        Christoph Hellwig <>, Ming Lei <>
Subject: Re: [PATCH] block: Fix page_is_mergeable() for compound pages

On 8/17/20 12:52 PM, Matthew Wilcox (Oracle) wrote:
> If we pass in an offset which is larger than PAGE_SIZE, then
> page_is_mergeable() thinks it's not mergeable with the previous bio_vec,
> leading to a large number of bio_vecs being used.  Use a slightly more
> obvious test that the two pages are compatible with each other.

Applied, thanks.

Jens Axboe

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