From: Linus Torvalds <torvalds@linux-foundation.org>
To: Matthew Wilcox <willy@infradead.org>
Cc: David Hildenbrand <david@redhat.com>,
Liang Zhang <zhangliang5@huawei.com>,
Andrew Morton <akpm@linux-foundation.org>,
Linux-MM <linux-mm@kvack.org>,
Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
wangzhigang17@huawei.com
Subject: Re: [PATCH] mm: reuse the unshared swapcache page in do_wp_page
Date: Thu, 13 Jan 2022 14:21:29 -0800 [thread overview]
Message-ID: <CAHk-=wj0tHiZaQe0um9M-tct3BFexu6ha0n8fzjg11O5U4G7-w@mail.gmail.com> (raw)
In-Reply-To: <YeCUiO7RBqo/VTMh@casper.infradead.org>
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[ sorry for html crud, I'm at the airport reading email on my phone ]
On Thu, Jan 13, 2022, 13:07 Matthew Wilcox <willy@infradead.org> wrote:
> On Thu,
> + if (page_count(page) > 5)
> goto copy;
Heh. That 5 was just supposed to be an example situation, not an actual
value to test.
Using 1+PageSwapCache(page) is fine with a comment about how it's an
optimistic comment
Linus
>
>
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next prev parent reply other threads:[~2022-01-13 22:21 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-01-13 14:03 Liang Zhang
2022-01-13 14:39 ` Matthew Wilcox
2022-01-13 14:46 ` David Hildenbrand
2022-01-13 15:02 ` Matthew Wilcox
2022-01-13 15:04 ` David Hildenbrand
2022-01-13 16:37 ` Linus Torvalds
2022-01-13 16:48 ` David Hildenbrand
2022-01-13 17:14 ` Linus Torvalds
2022-01-13 17:25 ` David Hildenbrand
2022-01-13 17:44 ` Linus Torvalds
2022-01-13 17:55 ` David Hildenbrand
2022-01-13 18:55 ` Linus Torvalds
2022-01-13 21:07 ` Matthew Wilcox
2022-01-13 22:21 ` Linus Torvalds [this message]
2022-01-14 5:00 ` zhangliang (AG)
2022-01-14 11:23 ` David Hildenbrand
2022-01-17 2:11 ` zhangliang (AG)
2022-01-17 12:58 ` David Hildenbrand
2022-01-17 13:31 ` zhangliang (AG)
2022-01-20 14:15 ` David Hildenbrand
2022-01-20 14:39 ` Matthew Wilcox
2022-01-20 15:26 ` David Hildenbrand
2022-01-20 15:36 ` Matthew Wilcox
2022-01-20 15:39 ` David Hildenbrand
2022-01-20 15:45 ` Matthew Wilcox
2022-01-20 15:51 ` David Hildenbrand
2022-01-20 16:09 ` Matthew Wilcox
2022-01-20 16:35 ` David Hildenbrand
2022-01-20 15:37 ` Linus Torvalds
2022-01-20 15:46 ` David Hildenbrand
2022-01-20 17:22 ` Linus Torvalds
2022-01-20 17:49 ` David Hildenbrand
2022-01-20 17:48 ` Nadav Amit
2022-01-20 18:00 ` David Hildenbrand
2022-01-20 18:11 ` Nadav Amit
2022-01-20 18:19 ` David Hildenbrand
2022-01-20 19:55 ` David Hildenbrand
2022-01-20 20:07 ` Matthew Wilcox
2022-01-20 20:09 ` David Hildenbrand
2022-01-20 20:37 ` David Hildenbrand
2022-01-20 20:46 ` Nadav Amit
2022-01-20 20:49 ` David Hildenbrand
2022-01-21 9:01 ` David Hildenbrand
2022-01-21 17:43 ` Nadav Amit
2022-01-20 20:18 ` David Hildenbrand
2022-01-14 3:29 ` zhangliang (AG)
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