[openib-general] Re: [PATCH] ipoib: device removal races

Michael S. Tsirkin mst at mellanox.co.il
Tue Aug 30 04:19:35 PDT 2005


Quoting r. Roland Dreier <rolandd at cisco.com>:
> Subject: Re: [PATCH] ipoib: device removal races
> 
> Sean said it well, but to repeat: the problem you run into is what to
> do when a consumer tries to cancel while the callback is running.  For
> example, one CPU might be in the middle of jumping to the consumer's
> callback when the other CPU enters the cancel function.

Now I understand, thanks.
And we cant flush callbacks from inside the device stop routine, so my
two queue patch only addresses part of the problem.

-- 
MST



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