netdev - Re: [PATCH] net: unix: make some variables constant

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] [day] [month] [year] [list]

Date:	Tue, 19 Oct 2010 14:03:31 +0800
From:	Changli Gao <xiaosuo@...il.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	"David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org
Subject: Re: [PATCH] net: unix: make some variables constant

On Tue, Oct 19, 2010 at 1:47 PM, Eric Dumazet <eric.dumazet@...il.com> wrote:
> Le mardi 19 octobre 2010 à 13:24 +0800, Changli Gao a écrit :
>> And since ctl_table.data is initialized later, we don't need to initialize
>> the data member of the template variable unix_table.
>>
>
> The init cost is nothing, since its a data blob that must be there
> anyway.

Yes. I have tried to avoid global variable unix_table and unix_path,
then I got a bigger kernel image, so I gave it up.

>
> We could even avoid the kmemdup() if CONFIG_NET_NS is not set
>
>

It is a good idea. We can check if the NS is init_net before kmalloc and kfree.

I'll send a update patch later. Thanks.

-- 
Regards,
Changli Gao(xiaosuo@...il.com)
--
To unsubscribe from this list: send the line "unsubscribe netdev" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html