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From: David Miller <davem@davemloft.net>
To: cfriesen@nortel.com
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org
Subject: Re: question about softirqs
Date: Mon, 11 May 2009 16:24:36 -0700 (PDT)	[thread overview]
Message-ID: <20090511.162436.193717082.davem@davemloft.net> (raw)
In-Reply-To: <4A086DB2.8040703@nortel.com>

From: "Chris Friesen" <cfriesen@nortel.com>
Date: Mon, 11 May 2009 12:25:54 -0600

> David Miller wrote:
> 
>> You know, for networking over loopback (one of the only real cases
>> that even matters, if we get a hard interrupt then the return from
>> that would process any softints), we probably make out just fine
>> anyways.  As long as we hit a local_bh_enable() (and in the return
>> path from device transmit that's exceedingly likely as all of the
>> networking locking is BH safe) we'll run the softints from that and
>> thus long before we get to syscall return.
> 
> What about the issue I raised earlier?  (I don't think you were copied
> at that point.)

I'm sure all of the networking experts on linuxppc-dev will have
an answer.

And yes that was sarcasm :-)  You need to ask this on netdev or similar
list.

  reply	other threads:[~2009-05-11 23:24 UTC|newest]

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-05-08 22:51 question about softirqs Chris Friesen
2009-05-08 23:05 ` David Miller
2009-05-08 23:34 ` Paul Mackerras
2009-05-08 23:53   ` David Miller
2009-05-09  2:52     ` Benjamin Herrenschmidt
2009-05-09  3:31     ` Paul Mackerras
2009-05-09  6:48       ` David Miller
2009-05-11 18:25         ` Chris Friesen
2009-05-11 23:24           ` David Miller [this message]
2009-05-12  0:43             ` Chris Friesen
2009-05-12  8:12               ` Ingo Molnar
2009-05-12  8:12                 ` Ingo Molnar
2009-05-12  9:12                 ` Peter Zijlstra
2009-05-12  9:23                   ` Ingo Molnar
2009-05-12  9:32                     ` Peter Zijlstra
2009-05-12 12:20                       ` Steven Rostedt
2009-05-12 12:20                         ` Steven Rostedt
2009-05-13  4:45                         ` David Miller
2009-05-13  4:44                     ` David Miller
2009-05-13  4:44                       ` David Miller
2009-05-13  5:15                       ` Paul Mackerras
2009-05-13  5:15                         ` Paul Mackerras
2009-05-13  5:28                         ` David Miller
2009-05-13  5:28                           ` David Miller
2009-05-13  5:55                   ` Evgeniy Polyakov
2009-05-13  5:55                     ` Evgeniy Polyakov
2009-05-12 15:18                 ` Chris Friesen
2009-05-12 15:18                   ` Chris Friesen
2009-05-13  8:34                   ` Andi Kleen
2009-05-13  8:34                     ` Andi Kleen
2009-05-13 13:23                     ` Chris Friesen
2009-05-13 14:15                       ` Andi Kleen
2009-05-13 14:15                         ` Andi Kleen
2009-05-13 14:17                         ` Thomas Gleixner
2009-05-13 14:17                           ` Thomas Gleixner
2009-05-13 14:24                           ` Andi Kleen
2009-05-13 14:24                             ` Andi Kleen
2009-05-13 14:54                             ` Eric Dumazet
2009-05-13 14:54                               ` Eric Dumazet
2009-05-13 15:02                               ` Andi Kleen
2009-05-13 15:02                                 ` Andi Kleen
2009-05-13 15:05                             ` Chris Friesen
2009-05-13 15:54                               ` Thomas Gleixner
2009-05-13 15:54                                 ` Thomas Gleixner
2009-05-13 16:10                                 ` Chris Friesen
2009-05-13 17:01                               ` Andi Kleen
2009-05-13 19:04                                 ` Chris Friesen
2009-05-13 19:04                                   ` Chris Friesen
2009-05-13 19:13                                   ` Andi Kleen
2009-05-13 19:13                                     ` Andi Kleen
2009-05-13 19:44                                     ` Chris Friesen
2009-05-13 19:53                                       ` Andi Kleen
2009-05-13 19:53                                         ` Andi Kleen
2009-05-13 20:55                                         ` Thomas Gleixner
2009-05-13 20:55                                           ` Thomas Gleixner
2009-05-11 23:34           ` Paul Mackerras
2009-05-09  0:28   ` Chris Friesen

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