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Date:   Fri, 7 Jul 2023 04:39:32 -0700
From:   Christoph Hellwig <hch@infradead.org>
To:     Qu Wenruo <wqu@suse.com>
Cc:     linux-btrfs@vger.kernel.org
Subject: Re: [PATCH] btrfs: add a debug accounting for eb pages contiguousness
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On Fri, Jul 07, 2023 at 04:40:27PM +0800, Qu Wenruo wrote:
> !!! DO NOT MERGE !!!
> 
> Although the current folio interface is not yet providing a way to
> allocate a range of contiguous pages,

What do you mean?  Both folios and compound pages will allocate larger
than PAGE_SIZE objects if you as for it.