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authorChuck Lever <chuck.lever@oracle.com>2018-12-19 11:00:37 -0500
committerAnna Schumaker <Anna.Schumaker@Netapp.com>2019-01-02 12:05:18 -0500
commitaf65ed404c437684c9f58d0c37495abedcdfa3fc (patch)
tree8c7b83553869c9a76f7fc6433a0fd5de2dc6ed7b /net
parent995d312a28cc2a6a5640ceb2dcbdfde37d050c07 (diff)
xprtrdma: Add documenting comment for rpcrdma_buffer_destroy
Make a note of the function's dependency on an earlier ib_drain_qp. Signed-off-by: Chuck Lever <chuck.lever@oracle.com> Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net')
-rw-r--r--net/sunrpc/xprtrdma/verbs.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/sunrpc/xprtrdma/verbs.c b/net/sunrpc/xprtrdma/verbs.c
index 11976c31ba93..7749a2bf6887 100644
--- a/net/sunrpc/xprtrdma/verbs.c
+++ b/net/sunrpc/xprtrdma/verbs.c
@@ -1177,6 +1177,14 @@ rpcrdma_mrs_destroy(struct rpcrdma_buffer *buf)
dprintk("RPC: %s: released %u MRs\n", __func__, count);
}
+/**
+ * rpcrdma_buffer_destroy - Release all hw resources
+ * @buf: root control block for resources
+ *
+ * ORDERING: relies on a prior ib_drain_qp :
+ * - No more Send or Receive completions can occur
+ * - All MRs, reps, and reqs are returned to their free lists
+ */
void
rpcrdma_buffer_destroy(struct rpcrdma_buffer *buf)
{

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