question about softirqs

David Miller davem at davemloft.net
Tue May 12 09:24:36 EST 2009


From: "Chris Friesen" <cfriesen at 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.




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