From: Ralph Campbell <rcampbell@nvidia.com>
To: Zi Yan <ziy@nvidia.com>, <linux-mm@kvack.org>,
Matthew Wilcox <willy@infradead.org>
Cc: "Kirill A . Shutemov" <kirill.shutemov@linux.intel.com>,
Roman Gushchin <guro@fb.com>,
Andrew Morton <akpm@linux-foundation.org>,
<linux-kernel@vger.kernel.org>, <linux-kselftest@vger.kernel.org>,
Yang Shi <shy828301@gmail.com>, Michal Hocko <mhocko@kernel.org>,
John Hubbard <jhubbard@nvidia.com>,
David Nellans <dnellans@nvidia.com>
Subject: Re: [RFC PATCH 1/6] mm: huge_memory: add new debugfs interface to trigger split huge page on any page range.
Date: Thu, 12 Nov 2020 14:22:00 -0800 [thread overview]
Message-ID: <69294b6a-ecfb-fac0-2725-9ac0b73f43aa@nvidia.com> (raw)
In-Reply-To: <20201111204008.21332-2-zi.yan@sent.com>
On 11/11/20 12:40 PM, Zi Yan wrote:
> From: Zi Yan <ziy@nvidia.com>
>
> Huge pages in the process with the given pid and virtual address range
> are split. It is used to test split huge page function. In addition,
> a testing program is added to tools/testing/selftests/vm to utilize the
> interface by splitting PMD THPs.
>
> Signed-off-by: Zi Yan <ziy@nvidia.com>
> ---
> mm/huge_memory.c | 98 +++++++++++
> mm/internal.h | 1 +
> mm/migrate.c | 2 +-
> tools/testing/selftests/vm/Makefile | 1 +
> .../selftests/vm/split_huge_page_test.c | 161 ++++++++++++++++++
> 5 files changed, 262 insertions(+), 1 deletion(-)
> create mode 100644 tools/testing/selftests/vm/split_huge_page_test.c
Don't forget to update ".gitignore" to include "split_huge_page_test".
next prev parent reply other threads:[~2020-11-12 22:22 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-11 20:40 [RFC PATCH 0/6] Split huge pages to any lower order pages Zi Yan
2020-11-11 20:40 ` [RFC PATCH 1/6] mm: huge_memory: add new debugfs interface to trigger split huge page on any page range Zi Yan
2020-11-12 22:22 ` Ralph Campbell [this message]
2020-11-12 22:38 ` Zi Yan
2020-11-16 16:06 ` Kirill A. Shutemov
2020-11-16 17:26 ` Zi Yan
2020-11-11 20:40 ` [RFC PATCH 2/6] mm: memcg: make memcg huge page split support any order split Zi Yan
2020-11-12 17:58 ` Ralph Campbell
2020-11-12 18:00 ` Zi Yan
2020-11-14 0:23 ` Roman Gushchin
2020-11-14 0:56 ` Zi Yan
2020-11-11 20:40 ` [RFC PATCH 3/6] mm: page_owner: add support for splitting to any order in split page_owner Zi Yan
2020-11-12 17:57 ` Ralph Campbell
2020-11-12 17:59 ` Zi Yan
2020-11-14 0:15 ` Roman Gushchin
2020-11-14 1:08 ` Zi Yan
2020-11-14 1:38 ` Roman Gushchin
2020-11-17 21:05 ` Matthew Wilcox
2020-11-17 21:12 ` Zi Yan
2020-11-17 21:22 ` Matthew Wilcox
2020-11-17 21:25 ` Zi Yan
2020-11-17 21:35 ` Roman Gushchin
2020-11-17 21:43 ` Matthew Wilcox
2020-11-16 16:25 ` Kirill A. Shutemov
2020-11-16 17:27 ` Zi Yan
2020-11-17 21:10 ` Matthew Wilcox
2020-11-17 21:13 ` Zi Yan
2020-11-11 20:40 ` [RFC PATCH 4/6] mm: thp: add support for split huge page to any lower order pages Zi Yan
2020-11-12 22:01 ` Ralph Campbell
2020-11-12 22:20 ` Zi Yan
2020-11-14 0:52 ` Roman Gushchin
2020-11-14 1:00 ` Zi Yan
2020-11-11 20:40 ` [RFC PATCH 5/6] mm: truncate: split thp to a non-zero order if possible Zi Yan
2020-11-12 22:08 ` Ralph Campbell
2020-11-12 22:37 ` Zi Yan
2020-11-11 20:40 ` [RFC PATCH 6/6] mm: huge_memory: enable debugfs to split huge pages to any order Zi Yan
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