netdev - RE: [net-next-2.6 PATCH 8/9] vxge: Acquire correct lock based on interrupt context.

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]

Date:	Mon, 5 Oct 2009 23:23:01 -0400
From:	"Ramkrishna Vepa" <Ramkrishna.Vepa@...erion.com>
To:	"Eric Dumazet" <eric.dumazet@...il.com>
Cc:	"David Miller" <davem@...emloft.net>,
	"Sreenivasa Honnur" <Sreenivasa.Honnur@...erion.com>,
	<netdev@...r.kernel.org>
Subject: RE: [net-next-2.6 PATCH 8/9] vxge: Acquire correct lock based on interrupt context.

> Ramkrishna Vepa a écrit :
> > [Ram] Right, but why have the additional step of saving and restoring
> > the flags while in the interrupt context?
> >
> 
> It costs about the same thing than testing two times in_interrupt()
> 
> pushf
> pop register
> test iflag,register
> je ...
> 
> 
> In the end, original code is shorter and faster.
[Ram] Got it. We'll remove this patch from the patch set.

Ram
--
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