From: Lance Yang <ioworker0@gmail.com>
To: akpm@linux-foundation.org
Cc: 21cnbao@gmail.com, ryan.roberts@arm.com, dev.jain@arm.com,
david@redhat.com, shy828301@gmail.com, ziy@nvidia.com,
libang.li@antgroup.com, baolin.wang@linux.alibaba.com,
linux-kernel@vger.kernel.org, linux-mm@kvack.org,
Lance Yang <ioworker0@gmail.com>
Subject: [RFC 0/2] relax anon mTHP PTE Mapping restrictions
Date: Mon, 20 Jan 2025 09:22:28 +0800 [thread overview]
Message-ID: <20250120012230.3343-1-ioworker0@gmail.com> (raw)
Hey all,
Previously, mTHP could only be mapped to PTEs where all entries were none.
With this change, PTEs within the range mapping the demand-zero page can
now be treated as `pte_none` and remapped to a new mTHP, providing more
opportunities to take advantage of mTHP.
Lance Yang (2):
mm/mthp: add pte_range_none_or_zeropfn() helper
mm/mthp: relax anon mTHP PTE Mapping restrictions
mm/memory.c | 54 ++++++++++++++++++++++++++++++++++++++++++++++++-----
1 file changed, 49 insertions(+), 5 deletions(-)
--
2.45.2
next reply other threads:[~2025-01-20 1:22 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-20 1:22 Lance Yang [this message]
2025-01-20 1:22 ` [RFC 1/2] mm/mthp: add pte_range_none_or_zeropfn() helper Lance Yang
2025-01-20 1:22 ` [RFC 2/2] mm/mthp: relax anon mTHP PTE Mapping restrictions Lance Yang
2025-01-20 2:15 ` Barry Song
2025-01-20 13:20 ` Lance Yang
2025-01-20 13:38 ` David Hildenbrand
2025-01-21 12:57 ` Lance Yang
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