From: David Hildenbrand <david@redhat.com>
To: Barry Song <21cnbao@gmail.com>,
steven.price@arm.com, akpm@linux-foundation.org,
ryan.roberts@arm.com, catalin.marinas@arm.com, will@kernel.org
Cc: linux-kernel@vger.kernel.org, linux-mm@kvack.org,
mhocko@suse.com, shy828301@gmail.com, v-songbaohua@oppo.com,
wangkefeng.wang@huawei.com, willy@infradead.org,
xiang@kernel.org, ying.huang@intel.com, yuzhao@google.com
Subject: Re: [RFC V3 PATCH] arm64: mm: swap: save and restore mte tags for large folios
Date: Wed, 15 Nov 2023 16:16:36 +0100 [thread overview]
Message-ID: <d8fd421e-00f3-453e-9665-df3fdcc239eb@redhat.com> (raw)
In-Reply-To: <20231114014313.67232-1-v-songbaohua@oppo.com>
On 14.11.23 02:43, Barry Song wrote:
> This patch makes MTE tags saving and restoring support large folios,
> then we don't need to split them into base pages for swapping out
> on ARM64 SoCs with MTE.
>
> arch_prepare_to_swap() should take folio rather than page as parameter
> because we support THP swap-out as a whole.
>
> Meanwhile, arch_swap_restore() should use page parameter rather than
> folio as swap-in always works at the granularity of base pages right
> now.
... but then we always have order-0 folios and can pass a folio, or what
am I missing?
>
> arch_thp_swp_supported() is dropped since ARM64 MTE was the only one
> who needed it.
Can we do that separately?
--
Cheers,
David / dhildenb
next prev parent reply other threads:[~2023-11-15 15:16 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-11-14 1:43 [RFC V3 PATCH] arm64: mm: swap: save and restore mte tags for large folios Barry Song
2023-11-15 14:40 ` Steven Price
2023-11-15 15:16 ` David Hildenbrand [this message]
2023-11-15 20:49 ` Barry Song
2023-11-15 22:45 ` Yang Shi
2023-11-16 9:36 ` David Hildenbrand
2023-11-16 23:47 ` Barry Song
2023-11-17 0:15 ` Barry Song
2023-11-17 11:28 ` David Hildenbrand
2023-11-17 18:41 ` Barry Song
2023-11-20 9:11 ` David Hildenbrand
2023-11-20 10:57 ` Ryan Roberts
2023-11-20 14:50 ` Steven Price
2023-11-24 1:35 ` Barry Song
2023-11-24 8:55 ` David Hildenbrand
2023-11-24 9:01 ` Ryan Roberts
2023-11-24 9:55 ` Steven Price
2023-11-24 18:14 ` Barry Song
2023-11-27 11:56 ` Ryan Roberts
2023-11-27 12:01 ` David Hildenbrand
2023-11-27 12:14 ` Ryan Roberts
2023-11-27 14:16 ` David Hildenbrand
2023-11-27 14:52 ` Ryan Roberts
2023-11-27 15:42 ` David Hildenbrand
2023-12-07 3:22 ` Barry Song
2023-12-07 10:03 ` David Hildenbrand
2023-12-08 0:00 ` Barry Song
2023-11-17 11:25 ` David Hildenbrand
2023-11-17 19:36 ` Matthew Wilcox
2023-11-17 20:36 ` Barry Song
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