linux-kernel - Re: [PATCH 4/6] x86, mm: make split_mem

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20190329033804.GA17676@richard>
Date:   Fri, 29 Mar 2019 11:38:04 +0800
From:   Wei Yang <richardw.yang@...ux.intel.com>
To:     Thomas Gleixner <tglx@...utronix.de>
Cc:     Wei Yang <richardw.yang@...ux.intel.com>, x86@...nel.org,
        linux-kernel@...r.kernel.org, dave.hansen@...ux.intel.com,
        luto@...nel.org, peterz@...radead.or
Subject: Re: [PATCH 4/6] x86, mm: make split_mem_range() more easy to read

On Thu, Mar 28, 2019 at 09:08:43AM +0100, Thomas Gleixner wrote:
>On Thu, 28 Mar 2019, Wei Yang wrote:
>> On Sun, Mar 24, 2019 at 03:29:04PM +0100, Thomas Gleixner wrote:
>> My question is to the for loop.
>> 
>> For example, we have a range
>> 
>>        +--+---------+-----------------------+
>>        ^ 128M       1G                      2G
>>    128M - 4K
>> 
>
>Yes. You misread mr_try_map().

You are right, I misunderstand the functionality of mr_try_map().

I went through the code and this looks nice to me. I have to say you are
genius.

Thanks for your code and I really learned a lot from this.

BTW, for the test cases, I thinks mem-hotplug may be introduce layout
diversity. Since mem-hotplug's range has to be 128M aligned.

>
>Thanks,
>
>	tglx

-- 
Wei Yang
Help you, Help me