From: "Kirill A. Shutemov" <kirill@shutemov.name>
To: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Matthew Wilcox <willy@infradead.org>,
Johannes Weiner <hannes@cmpxchg.org>,
Linux-MM <linux-mm@kvack.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Hugh Dickins <hughd@google.com>
Subject: Re: a question of split_huge_page
Date: Fri, 10 Jul 2020 13:33:18 +0300 [thread overview]
Message-ID: <20200710103318.bm2gp743lagiajao@box> (raw)
In-Reply-To: <f761007f-4663-f72e-b0da-fc3ce9486b4b@linux.alibaba.com>
On Fri, Jul 10, 2020 at 12:51:58PM +0800, Alex Shi wrote:
>
>
> 在 2020/7/10 上午12:07, Kirill A. Shutemov 写道:
> > Right, and it's never got removed from LRU during the split. The tail
> > pages have to be added to LRU because they now separate from the tail
> > page.
> >
> According to the explaination, looks like we could remove the code path,
> since it's never got into. (base on my v15 patchset). Any comments?
Yes. But why? It's reasonable failsafe that gives chance to recover if
something goes wrong.
--
Kirill A. Shutemov
next prev parent reply other threads:[~2020-07-10 10:33 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-09 15:11 Alex Shi
2020-07-09 15:50 ` Matthew Wilcox
2020-07-09 16:07 ` Kirill A. Shutemov
2020-07-10 4:51 ` Alex Shi
2020-07-10 5:28 ` Mika Penttilä
2020-07-10 7:00 ` Alex Shi
2020-07-10 7:22 ` Mika Penttilä
2020-07-10 9:34 ` Alex Shi
2020-07-10 12:56 ` Joerg Roedel
2020-07-10 17:29 ` Yang Shi
2020-07-10 10:33 ` Kirill A. Shutemov [this message]
2020-07-10 14:23 ` Alex Shi
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