From: Eric Dumazet <eric.dumazet@gmail.com>
To: Shaohua Li <shaohua.li@intel.com>
Cc: lkml <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
"cl@linux.com" <cl@linux.com>, "tj@kernel.org" <tj@kernel.org>
Subject: Re: [PATCH 3/4]percpu_counter: fix code for 32bit systems
Date: Wed, 13 Apr 2011 05:53:40 +0200 [thread overview]
Message-ID: <1302666820.2811.115.camel@edumazet-laptop> (raw)
In-Reply-To: <1302663781.3981.169.camel@sli10-conroe>
Le mercredi 13 avril 2011 à 11:03 +0800, Shaohua Li a écrit :
> I can do this, but please give a reason. If network code is the only
> place requiring disable irq, why not network code do it?
>
Lot of percpu_counter users dont use full s64 range, but "unsigned long"
or "unsigned int". Adding a lock on 32bit arches to get the s64, then
truncate it is not needed.
This discussion reminds me an old one ;)
http://kerneltrap.org/mailarchive/linux-ext4/2008/12/12/4401894
next prev parent reply other threads:[~2011-04-13 3:53 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-12 8:04 Shaohua Li
2011-04-12 9:03 ` Eric Dumazet
2011-04-13 1:01 ` Shaohua Li
2011-04-13 2:32 ` Eric Dumazet
2011-04-13 2:41 ` Shaohua Li
2011-04-13 2:47 ` Eric Dumazet
2011-04-13 3:03 ` Shaohua Li
2011-04-13 3:50 ` tj
2011-04-13 4:37 ` Shaohua Li
2011-04-13 3:53 ` Eric Dumazet [this message]
2011-04-13 4:00 ` tj
2011-04-12 19:02 ` Tejun Heo
2011-04-13 1:05 ` Shaohua Li
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