Re: [PATCH rdma-next 4/4] RDMA/irdma: Release SRQ slots during CQ scrub

[sashiko-bot@kernel.org]

> When the CQ is scrubbed during QP destroy, any unpolled SRQ
> completions are invalidated, which causes those SRQ slots to
> be leaked because the SRQ tail only advances when completions
> are polled.
> 
> Fix this by releasing the SRQ slots whenever an SRQ CQE is scrubbed
> during QP destroy as well as during the small window prior to CQ
> scrub where the QP is marked as "destroy_pending".
> 
> In practice, the leak only matters if a consumer posts new buffers
> to replace the ones tied to the discarded completions, but releasing
> the slots keeps the driver's SRQ accounting correct.
> 
> Fixes: 563e1feb5f6e ("RDMA/irdma: Add SRQ support")
> Signed-off-by: Jacob Moroni <jmoroni@google.com>

Sashiko has reviewed this patch and found no issues.

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