From: Andrew Morton <akpm@linux-foundation.org>
To: Bibo Mao <maobibo@loongson.cn>
Cc: "Thomas Bogendoerfer" <tsbogend@alpha.franken.de>,
"Jiaxun Yang" <jiaxun.yang@flygoat.com>,
"Huacai Chen" <chenhc@lemote.com>,
"Paul Burton" <paulburton@kernel.org>,
"Dmitry Korotin" <dkorotin@wavecomp.com>,
"Philippe Mathieu-Daudé" <f4bug@amsat.org>,
"Stafford Horne" <shorne@gmail.com>,
"Steven Price" <steven.price@arm.com>,
"Anshuman Khandual" <anshuman.khandual@arm.com>,
linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
"Mike Rapoport" <rppt@linux.ibm.com>,
"Sergei Shtylyov" <sergei.shtylyov@cogentembedded.com>,
"Maciej W. Rozycki" <macro@wdc.com>,
linux-mm@kvack.org, "David Hildenbrand" <david@redhat.com>
Subject: Re: [PATCH v6 3/4] mm/memory.c: Add memory read privilege on page fault handling
Date: Mon, 25 May 2020 14:44:13 -0700 [thread overview]
Message-ID: <20200525144413.8c13559ec87616aa2c77af41@linux-foundation.org> (raw)
In-Reply-To: <1590375160-6997-3-git-send-email-maobibo@loongson.cn>
On Mon, 25 May 2020 10:52:39 +0800 Bibo Mao <maobibo@loongson.cn> wrote:
> Here add pte_sw_mkyoung function to make page readable on MIPS
> platform during page fault handling. This patch improves page
> fault latency about 10% on my MIPS machine with lmbench
> lat_pagefault case.
>
> It is noop function on other arches, there is no negative
> influence on those architectures.
Acked-by: Andrew Morton <akpm@linux-foundation.org>
Should I take these, or would the mips tree be preferred? I'm OK
either way, but probably the MIPS tree would be better?
next prev parent reply other threads:[~2020-05-25 21:44 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-25 2:52 [PATCH v6 1/4] MIPS: Do not flush tlb page when updating PTE entry Bibo Mao
2020-05-25 2:52 ` [PATCH v6 2/4] mm/memory.c: Update local TLB if PTE entry exists Bibo Mao
2020-05-25 21:43 ` Andrew Morton
2020-05-25 2:52 ` [PATCH v6 3/4] mm/memory.c: Add memory read privilege on page fault handling Bibo Mao
2020-05-25 21:44 ` Andrew Morton [this message]
2020-05-27 1:05 ` maobibo
2020-05-27 7:10 ` Thomas Bogendoerfer
2020-05-25 2:52 ` [PATCH v6 4/4] MIPS: mm: add page valid judgement in function pte_modify Bibo Mao
2020-05-25 8:12 ` [PATCH v6 1/4] MIPS: Do not flush tlb page when updating PTE entry Sergei Shtylyov
2020-05-25 8:31 ` Sergei Shtylyov
2020-05-27 1:07 ` maobibo
2020-05-25 21:42 ` Andrew Morton
2020-05-27 1:06 ` maobibo
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