From: Matthew Wilcox <willy@infradead.org>
To: Herbert Xu <herbert@gondor.apana.org.au>
Cc: linux-mm@kvack.org, Andrew Morton <akpm@linux-foundation.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
Christoph Hellwig <hch@lst.de>, Zi Yan <ziy@nvidia.com>,
Eric Biggers <ebiggers@kernel.org>
Subject: Re: [PATCH] mm: Move nth_page from folio_page into folio_next
Date: Thu, 13 Mar 2025 12:25:50 +0000 [thread overview]
Message-ID: <Z9LOzj17FDFDw7JM@casper.infradead.org> (raw)
In-Reply-To: <Z9JhwhMIn4uhkHrI@gondor.apana.org.au>
On Thu, Mar 13, 2025 at 12:40:34PM +0800, Herbert Xu wrote:
> Discontiguous memory may require the use of nth_page instead of adding
> to struct page arithmetically. However, discontiguous memory cannot
> exist within a single folio.
That isn't true. HugeTLB can construct a folio which crosses a
contiguity boundary.
next prev parent reply other threads:[~2025-03-13 12:25 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-03-13 4:40 Herbert Xu
2025-03-13 12:25 ` Matthew Wilcox [this message]
2025-03-14 1:18 ` Herbert Xu
2025-03-14 1:40 ` Zi Yan
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