RDMA/core: Prevent destroying in-use completion counters

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Reject comp_cntr destroy while it is attached to any QP. Track
attachments using an xarray in ib_qp keyed by the attach op_mask.
Use op bitmask to reject overlapping attaches early.

Reviewed-by: Yonatan Nachum <ynachum@amazon.com>
Signed-off-by: Michael Margolin <mrgolin@amazon.com>
Link: https://patch.msgid.link/20260722083603.30334-3-mrgolin@amazon.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>

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Michael Margolin 2026-07-22 08:35:59 +00:00 • committed by Leon Romanovsky

parent b3818ea4ad

commit 45e537bf58

4 changed files with 31 additions and 1 deletions

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3

drivers/infiniband/core/uverbs_std_types_comp_cntr.c

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18

drivers/infiniband/core/uverbs_std_types_qp.c

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8

drivers/infiniband/core/verbs.c

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3

include/rdma/ib_verbs.h

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