IB/core: add a need_inval flag to struct ib_mr

This is the first step toward moving MR invalidation decisions to the core. It will be needed by the upcoming RW API. Signed-off-by: Steve Wise <swise@opengridcomputing.com> Reviewed-by: Bart Van Assche <bart.vanassche@sandisk.com> Reviewed-by: Sagi Grimberg <sagi@grimberg.me> Reviewed-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Doug Ledford <dledford@redhat.com>
mariux64 · May 13, 2016 · d4a85c3 · d4a85c3
1 parent fffb038
commit d4a85c3
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diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
@@ -1353,6 +1353,7 @@ struct ib_mr *ib_get_dma_mr(struct ib_pd *pd, int mr_access_flags)
 		mr->pd      = pd;
 		mr->uobject = NULL;
 		atomic_inc(&pd->usecnt);
+		mr->need_inval = false;
 	}
 
 	return mr;
@@ -1399,6 +1400,7 @@ struct ib_mr *ib_alloc_mr(struct ib_pd *pd,
 		mr->pd      = pd;
 		mr->uobject = NULL;
 		atomic_inc(&pd->usecnt);
+		mr->need_inval = false;
 	}
 
 	return mr;

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
@@ -1446,6 +1446,7 @@ struct ib_mr {
 	u64		   iova;
 	u32		   length;
 	unsigned int	   page_size;
+	bool		   need_inval;
 	union {
 		struct ib_uobject	*uobject;	/* user */
 		struct list_head	qp_entry;	/* FR */