From: Matthew Wilcox <willy@infradead.org>
To: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Andrew Morton <akpm@linux-foundation.org>,
ziy@nvidia.com, linux-mm@kvack.org
Subject: Re: [PATCH] mm: memory: use nth_page() in clear/copy_subpage()
Date: Fri, 29 Dec 2023 08:49:04 +0000 [thread overview]
Message-ID: <ZY6IAA2OCrhFzdKe@casper.infradead.org> (raw)
In-Reply-To: <20231229082207.60235-1-wangkefeng.wang@huawei.com>
On Fri, Dec 29, 2023 at 04:22:07PM +0800, Kefeng Wang wrote:
> The clear and copy of huge gigantic page has converted to use nth_page()
> to handle the possible discontinuous struct page(SPARSEMEM without VMEMMAP),
> but not change for the non-gigantic part, fix it too.
Can there be discontiguities within a non-gigantic huge page? My
impression was that you can't have a discontiguity at such a small
boundary.
next prev parent reply other threads:[~2023-12-29 8:49 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-29 8:22 Kefeng Wang
2023-12-29 8:49 ` Matthew Wilcox [this message]
2023-12-29 11:15 ` David Hildenbrand
2024-01-02 6:53 ` Kefeng Wang
2024-01-02 16:11 ` David Hildenbrand
2024-01-03 6:23 ` Kefeng Wang
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