From: Leon Romanovsky <leonro@xxxxxxxxxxxx>
The KBUILD_MODNAME variable contains the module name
and it is known for kernel users during compilation,
so let's reuse it to track the owners.
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
drivers/infiniband/core/cq.c | 11 +++++++----
drivers/infiniband/core/verbs.c | 1 +
include/rdma/ib_verbs.h | 13 +++++++++++--
3 files changed, 19 insertions(+), 6 deletions(-)
diff --git a/drivers/infiniband/core/cq.c b/drivers/infiniband/core/cq.c
index c8c5a5a7f433..f2bf51885094 100644
--- a/drivers/infiniband/core/cq.c
+++ b/drivers/infiniband/core/cq.c
@@ -120,20 +120,22 @@ static void ib_cq_completion_workqueue(struct ib_cq *cq, void *private)
}
/**
- * ib_alloc_cq - allocate a completion queue
+ * __ib_alloc_cq - allocate a completion queue
* @dev: device to allocate the CQ for
* @private: driver private data, accessible from cq->cq_context
* @nr_cqe: number of CQEs to allocate
* @comp_vector: HCA completion vectors for this CQ
* @poll_ctx: context to poll the CQ from.
+ * @caller: module owner name.
*
* This is the proper interface to allocate a CQ for in-kernel users. A
* CQ allocated with this interface will automatically be polled from the
* specified context. The ULP must use wr->wr_cqe instead of wr->wr_id
* to use this CQ abstraction.
*/
-struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private,
- int nr_cqe, int comp_vector, enum ib_poll_context poll_ctx)
+struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private,
+ int nr_cqe, int comp_vector,
+ enum ib_poll_context poll_ctx, const char *caller)
{
struct ib_cq_init_attr cq_attr = {
.cqe = nr_cqe,
@@ -151,6 +153,7 @@ struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private,
cq->event_handler = NULL;
cq->cq_context = private;
cq->poll_ctx = poll_ctx;
+ cq->caller = caller;
atomic_set(&cq->usecnt, 0);
cq->wc = kmalloc_array(IB_POLL_BATCH, sizeof(*cq->wc), GFP_KERNEL);
@@ -185,7 +188,7 @@ struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private,
cq->device->destroy_cq(cq);
return ERR_PTR(ret);
}
-EXPORT_SYMBOL(ib_alloc_cq);
+EXPORT_SYMBOL(__ib_alloc_cq);
/**
* ib_free_cq - free a completion queue
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index e9c3991a93ff..098bde906dfd 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -252,6 +252,7 @@ struct ib_pd *__ib_alloc_pd(struct ib_device *device, unsigned int flags,
pd->__internal_mr = NULL;
atomic_set(&pd->usecnt, 0);
pd->flags = flags;
+ pd->caller = caller;
if (device->attrs.device_cap_flags & IB_DEVICE_LOCAL_DMA_LKEY)
pd->local_dma_lkey = device->local_dma_lkey;
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 1c6e9f52f127..4cb18bcc2f34 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1530,6 +1530,7 @@ struct ib_pd {
* Implementation details of the RDMA core, don't use in drivers:
*/
struct ib_mr *__internal_mr;
+ const char *caller;
};
struct ib_xrcd {
@@ -1570,6 +1571,10 @@ struct ib_cq {
struct irq_poll iop;
struct work_struct work;
};
+ /*
+ * Implementation details of the RDMA core, don't use in drivers:
+ */
+ const char *caller;
};
struct ib_srq {
@@ -3135,8 +3140,12 @@ static inline int ib_post_recv(struct ib_qp *qp,
return qp->device->post_recv(qp, recv_wr, bad_recv_wr);
}
-struct ib_cq *ib_alloc_cq(struct ib_device *dev, void *private,
- int nr_cqe, int comp_vector, enum ib_poll_context poll_ctx);
+struct ib_cq *__ib_alloc_cq(struct ib_device *dev, void *private,
+ int nr_cqe, int comp_vector,
+ enum ib_poll_context poll_ctx, const char *caller);
+#define ib_alloc_cq(device, priv, nr_cqe, comp_vect, poll_ctx) \
+ __ib_alloc_cq((device), (priv), (nr_cqe), (comp_vect), (poll_ctx), KBUILD_MODNAME)
+
void ib_free_cq(struct ib_cq *cq);
int ib_process_cq_direct(struct ib_cq *cq, int budget);
--
2.15.1
--
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