diff options
| author | Michael Margolin <mrgolin@amazon.com> | 2026-07-22 08:35:59 +0000 |
|---|---|---|
| committer | Leon Romanovsky <leon@kernel.org> | 2026-07-22 05:45:47 -0400 |
| commit | 45e537bf580d540132bcabd8ae3af483461fa1c1 (patch) | |
| tree | 47d17479088795398046fd26d8069d633553ef71 /include | |
| parent | b3818ea4ad1e2eff8472e8280daba0d2aabfe3c0 (diff) | |
| download | linux-45e537bf580d540132bcabd8ae3af483461fa1c1.tar.gz linux-45e537bf580d540132bcabd8ae3af483461fa1c1.zip | |
RDMA/core: Prevent destroying in-use completion counters
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>
Diffstat (limited to 'include')
| -rw-r--r-- | include/rdma/ib_verbs.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 9a952750f068..84a8904fbad4 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -1758,6 +1758,7 @@ enum ib_qp_attach_comp_cntr_op { struct ib_comp_cntr { struct ib_device *device; struct ib_uobject *uobject; + atomic_t usecnt; }; enum ib_comp_cntr_entry { @@ -1944,6 +1945,8 @@ struct ib_qp { struct completion srq_completion; struct ib_xrcd *xrcd; /* XRC TGT QPs only */ struct list_head xrcd_list; + struct xarray comp_cntrs; /* op_mask -> comp_cntr */ + u32 comp_cntr_op_mask; /* count times opened, mcast attaches, flow attaches */ atomic_t usecnt; |