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e135106fac
Create a an ipoib_flush_ah and ipoib_stop_ah routines to use at appropriate times to flush out all remaining ah entries before we shut the device down. Because neighbors and mcast entries can each have a reference on any given ah, we must make sure to free all of those first before our ah will actually have a 0 refcount and be able to be reaped. This factoring is needed in preparation for having per-device work queues. The original per-device workqueue code resulted in the following error message: <ibdev>: ib_dealloc_pd failed That error was tracked down to this issue. With the changes to which workqueues were flushed when, there were no flushes of the per device workqueue after the last ah's were freed, resulting in an attempt to dealloc the pd with outstanding resources still allocated. This code puts the explicit flushes in the needed places to avoid that problem. Signed-off-by: Doug Ledford <dledford@redhat.com> |
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