linux-kernel - Re: [PATCH v2] mips/mm: Add page soft dirty tracking

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Message-ID: <20200517084300.GF3939@alpha.franken.de>
Date:   Sun, 17 May 2020 10:43:00 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Guoyun Sun <sunguoyun@...ngson.cn>
Cc:     Jiaxun Yang <jiaxun.yang@...goat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Paul Burton <paulburton@...nel.org>,
        Daniel Silsby <dansilsby@...il.com>,
        Paul Cercueil <paul@...pouillou.net>,
        linux-mips@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2] mips/mm: Add page soft dirty tracking

On Wed, Apr 29, 2020 at 04:44:32PM +0800, Guoyun Sun wrote:
> User space checkpoint and restart tool (CRIU) needs the page's change
> to be soft tracked. This allows to do a pre checkpoint and then dump
> only touched pages.
> 
> Signed-off-by: Guoyun Sun <sunguoyun@...ngson.cn>
> ---
>  arch/mips/include/asm/pgtable-bits.h | 20 +++++++++++++--
>  arch/mips/include/asm/pgtable.h      | 48 ++++++++++++++++++++++++++++++++++--
>  2 files changed, 64 insertions(+), 4 deletions(-)

applied to mips-next.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]