From: Luis Chamberlain <mcgrof@kernel.org>
To: Zi Yan <ziy@nvidia.com>
Cc: "Pankaj Raghav (Samsung)" <kernel@pankajraghav.com>,
linux-mm@kvack.org,
"Matthew Wilcox (Oracle)" <willy@infradead.org>,
"David Hildenbrand" <david@redhat.com>,
"Yang Shi" <shy828301@gmail.com>, "Yu Zhao" <yuzhao@google.com>,
"Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
"Ryan Roberts" <ryan.roberts@arm.com>,
"Michal Koutný" <mkoutny@suse.com>,
"Roman Gushchin" <roman.gushchin@linux.dev>,
"Zach O'Keefe" <zokeefe@google.com>,
"Hugh Dickins" <hughd@google.com>,
"Andrew Morton" <akpm@linux-foundation.org>,
linux-kernel@vger.kernel.org, cgroups@vger.kernel.org,
linux-fsdevel@vger.kernel.org, linux-kselftest@vger.kernel.org
Subject: Re: [PATCH v4 5/7] mm: thp: split huge page to any lower order pages (except order-1).
Date: Tue, 13 Feb 2024 14:05:39 -0800 [thread overview]
Message-ID: <Zcvns2HCB61cwvgE@bombadil.infradead.org> (raw)
In-Reply-To: <20240213215520.1048625-6-zi.yan@sent.com>
On Tue, Feb 13, 2024 at 04:55:18PM -0500, Zi Yan wrote:
> From: Zi Yan <ziy@nvidia.com>
> Order-1 folio is not supported because _deferred_list, which is used by
> partially mapped folios, is stored in subpage 2 and an order-1 folio only
> has subpage 0 and 1.
The LBS patches has the patch from Matthew which enables and allowed us
to successfully test order 1. So this restriction could be dropped if
that gets merged.
Luis
next prev parent reply other threads:[~2024-02-13 22:05 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-13 21:55 [PATCH v4 0/7] Split a folio to any lower order folios Zi Yan
2024-02-13 21:55 ` [PATCH v4 1/7] mm/memcg: use order instead of nr in split_page_memcg() Zi Yan
2024-02-14 9:12 ` David Hildenbrand
2024-02-14 15:19 ` Zi Yan
2024-02-13 21:55 ` [PATCH v4 2/7] mm/page_owner: use order instead of nr in split_page_owner() Zi Yan
2024-02-14 9:14 ` David Hildenbrand
2024-02-14 15:21 ` Zi Yan
2024-02-13 21:55 ` [PATCH v4 3/7] mm: memcg: make memcg huge page split support any order split Zi Yan
2024-02-14 9:19 ` David Hildenbrand
2024-02-13 21:55 ` [PATCH v4 4/7] mm: page_owner: add support for splitting to any order in split page_owner Zi Yan
2024-02-14 9:34 ` David Hildenbrand
2024-02-14 15:29 ` Zi Yan
2024-02-13 21:55 ` [PATCH v4 5/7] mm: thp: split huge page to any lower order pages (except order-1) Zi Yan
2024-02-13 22:05 ` Luis Chamberlain [this message]
2024-02-13 22:14 ` David Hildenbrand
2024-02-13 22:15 ` Zi Yan
2024-02-13 22:19 ` Zi Yan
2024-02-14 2:56 ` Zi Yan
2024-02-14 10:38 ` Ryan Roberts
2024-02-14 16:11 ` Zi Yan
2024-02-14 16:22 ` Ryan Roberts
2024-02-14 16:28 ` Zi Yan
2024-02-14 16:41 ` Ryan Roberts
2024-02-13 21:55 ` [PATCH v4 6/7] mm: truncate: split huge page cache page to a non-zero order if possible Zi Yan
2024-02-14 10:43 ` Ryan Roberts
2024-02-14 16:19 ` Zi Yan
2024-02-14 16:25 ` Ryan Roberts
2024-02-13 21:55 ` [PATCH v4 7/7] mm: huge_memory: enable debugfs to split huge pages to any order Zi Yan
2024-02-13 22:21 ` [PATCH v4 0/7] Split a folio to any lower order folios David Hildenbrand
2024-02-13 22:31 ` Zi Yan
2024-02-14 10:50 ` Ryan Roberts
2024-02-14 10:55 ` David Hildenbrand
2024-02-14 16:35 ` Zi Yan
2024-02-14 17:18 ` Zi Yan
2024-02-14 17:38 ` Pankaj Raghav (Samsung)
2024-02-16 10:06 ` Pankaj Raghav (Samsung)
2024-02-16 15:51 ` Zi Yan
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