From: Shaohua Li <shaohua.li@intel.com>
To: "tj@kernel.org" <tj@kernel.org>
Cc: Eric Dumazet <eric.dumazet@gmail.com>,
lkml <linux-kernel@vger.kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
"cl@linux.com" <cl@linux.com>
Subject: Re: [PATCH 3/4]percpu_counter: fix code for 32bit systems
Date: Wed, 13 Apr 2011 12:37:08 +0800 [thread overview]
Message-ID: <1302669428.3981.172.camel@sli10-conroe> (raw)
In-Reply-To: <20110413035037.GA24161@mtj.dyndns.org>
On Wed, 2011-04-13 at 11:50 +0800, tj@kernel.org wrote:
> Hello, guys.
>
> On Wed, Apr 13, 2011 at 11:03:01AM +0800, Shaohua Li wrote:
> > 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?
>
> This thread is pointless. The next patch converts it to atomic64_t
> and the lock is removed anyway. I think Eric's argument makes sense
> given that atomic64_t translates into irqsave spinlock (it has to) in
> generic 32bit implementation. That said, this is all a moot point.
> We might as well simply drop this patch and directly convert to
> atomic64_t.
We need it for UP case anyway. Ok, I'll change it to irqsave in next
post.
Thanks,
Shaohua
next prev parent reply other threads:[~2011-04-13 4:37 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 [this message]
2011-04-13 3:53 ` Eric Dumazet
2011-04-13 4:00 ` tj
2011-04-12 19:02 ` Tejun Heo
2011-04-13 1:05 ` Shaohua Li
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