linux-kernel - Re: [PATCH 1/3] net: use this_cpu_xxx replace percpu

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Date:	Thu, 20 Oct 2011 10:38:13 +0200
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	"Alex,Shi" <alex.shi@...el.com>
Cc:	Christoph Lameter <cl@...two.org>, "tj@...nel.org" <tj@...nel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"Huang, Ying" <ying.huang@...el.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"mingo@...hat.com" <mingo@...hat.com>,
	"avi@...hat.com" <avi@...hat.com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	David Miller <davem@...emloft.net>,
	"kaber@...sh.net" <kaber@...sh.net>,
	"a.p.zijlstra@...llo.nl" <a.p.zijlstra@...llo.nl>,
	"kvm@...r.kernel.org" <kvm@...r.kernel.org>,
	"jeremy@...source.com" <jeremy@...source.com>
Subject: Re: [PATCH 1/3] net: use this_cpu_xxx replace percpu_xxx funcs

Le jeudi 20 octobre 2011 à 15:32 +0800, Alex,Shi a écrit :
> percpu_xxx funcs are duplicated with this_cpu_xxx funcs, so replace them
> for further code clean up.
> 
> And in preempt safe scenario, __this_cpu_xxx funcs has a bit better
> performance since __this_cpu_xxx has no redundant preempt_disable()
> 
> Signed-off-by: Alex Shi <alex.shi@...el.com>
> ---
>  net/netfilter/xt_TEE.c |   12 ++++++------
>  net/socket.c           |    4 ++--
>  2 files changed, 8 insertions(+), 8 deletions(-)

Acked-by: Eric Dumazet <eric.dumazet@...il.com>

Thanks !


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