linux-kernel - Re: [RFC PATCH V2 5/5] Add TX zero copy in macvtap

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: <1291998355.2167.53.camel@localhost.localdomain>
Date:	Fri, 10 Dec 2010 08:25:55 -0800
From:	Shirley Ma <mashirle@...ibm.com>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Avi Kivity <avi@...hat.com>, Arnd Bergmann <arnd@...db.de>,
	mst@...hat.com, xiaohui.xin@...el.com, netdev@...r.kernel.org,
	kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [RFC PATCH V2 5/5] Add TX zero copy in macvtap

On Fri, 2010-12-10 at 11:27 +0100, Eric Dumazet wrote:
> You could make one atomic_add() outside of the loop, and factorize
> many
> things...
> 
> atomic_add(len, &skb->sk->sk_wmem_alloc);
> skb->data_len += len;
> skb->len += len;
> skb->truesize += len;
> while (len) {
>         ...
> } 

Yep, thanks, will update it!

Shirley

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/