On Fri, 09 Mar 2018 11:23:02 +0200, Maged Mokhtar wrote:

> 2)I undertand that before switching the path, the initiator will send a 
> TMF ABORT can we pass this to down to the same abort_request() function 
> in osd_client that is used for osd_request_timeout expiry ? 

IIUC, the existing abort_request() codepath only cancels the I/O on the
client/gw side. A TMF ABORT successful response should only be sent if
we can guarantee that the I/O is terminated at all layers below, so I
think this would have to be implemented via an additional OSD epoch
barrier or similar.

Cheers, David
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