Re: [PATCH 6/9] IB/core: add a need_inval flag to struct ib_mr

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On 02/29/2016 02:20 PM, Christoph Hellwig wrote:
From: Steve Wise <swise@xxxxxxxxxxx>

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@xxxxxxxxxxxxxxxxxxxxx>
---
  include/rdma/ib_verbs.h | 1 +
  1 file changed, 1 insertion(+)

diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 1e68dae..2b94cea 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -1431,6 +1431,7 @@ 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 */

Hi Christoph,

mthca uses kmalloc() to allocate a struct mr. Are you sure we don't need to initialize the 'need_inval' member in ib_alloc_mr()?

Bart.
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