xprtrdma: buf_free not called for CB replies
authorChuck Lever <chuck.lever@oracle.com>
Fri, 15 Dec 2017 01:57:23 +0000 (20:57 -0500)
committerAnna Schumaker <Anna.Schumaker@Netapp.com>
Tue, 16 Jan 2018 16:19:47 +0000 (11:19 -0500)
commit6c537f2c7cc06da36f6701be4c9413d7b8b47bfb
tree8a123bdb1647e6de71f11d49e2a070ad3c91f43f
parenta2b6470b1c51dee7be4faf4f6b64803a6fcf637f
xprtrdma: buf_free not called for CB replies

Since commit 5a6d1db45569 ("SUNRPC: Add a transport-specific private
field in rpc_rqst"), the rpc_rqst's for RPC-over-RDMA backchannel
operations leave rq_buffer set to NULL.

xprt_release does not invoke ->op->buf_free when rq_buffer is NULL.
The RPCRDMA_REQ_F_BACKCHANNEL check in xprt_rdma_free is therefore
redundant because xprt_rdma_free is not invoked for backchannel
requests.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
net/sunrpc/xprtrdma/backchannel.c
net/sunrpc/xprtrdma/transport.c
net/sunrpc/xprtrdma/xprt_rdma.h