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-rw-r--r--drivers/infiniband/hw/qib/qib_keys.c4
-rw-r--r--drivers/infiniband/hw/qib/qib_verbs.h4
2 files changed, 5 insertions, 3 deletions
diff --git a/drivers/infiniband/hw/qib/qib_keys.c b/drivers/infiniband/hw/qib/qib_keys.c
index 970165b027f..e9486c74c22 100644
--- a/drivers/infiniband/hw/qib/qib_keys.c
+++ b/drivers/infiniband/hw/qib/qib_keys.c
@@ -349,7 +349,9 @@ int qib_fast_reg_mr(struct qib_qp *qp, struct ib_send_wr *wr)
if (pd->user || rkey == 0)
goto bail;
- mr = rkt->table[(rkey >> (32 - ib_qib_lkey_table_size))];
+ mr = rcu_dereference_protected(
+ rkt->table[(rkey >> (32 - ib_qib_lkey_table_size))],
+ lockdep_is_held(&rkt->lock));
if (unlikely(mr == NULL || qp->ibqp.pd != mr->pd))
goto bail;
diff --git a/drivers/infiniband/hw/qib/qib_verbs.h b/drivers/infiniband/hw/qib/qib_verbs.h
index 85751fd7437..1293133f28c 100644
--- a/drivers/infiniband/hw/qib/qib_verbs.h
+++ b/drivers/infiniband/hw/qib/qib_verbs.h
@@ -650,7 +650,7 @@ struct qib_lkey_table {
u32 next; /* next unused index (speeds search) */
u32 gen; /* generation count */
u32 max; /* size of the table */
- struct qib_mregion **table;
+ struct qib_mregion __rcu **table;
};
struct qib_opcode_stats {
@@ -732,7 +732,7 @@ struct qib_ibdev {
struct list_head pending_mmaps;
spinlock_t mmap_offset_lock; /* protect mmap_offset */
u32 mmap_offset;
- struct qib_mregion *dma_mr;
+ struct qib_mregion __rcu *dma_mr;
/* QP numbers are shared by all IB ports */
struct qib_qpn_table qpn_table;