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| author | Chuck Lever <chuck.lever@oracle.com> | 2016-09-15 17:55:45 +0300 |
|---|---|---|
| committer | Anna Schumaker <Anna.Schumaker@Netapp.com> | 2016-09-19 20:08:37 +0300 |
| commit | 5a6d1db4556940533f1a5b6521e522f3e46508ed (patch) | |
| tree | f57c4db3795a55d9728f7bccef6f61df57c9586f /net/sunrpc/xprtrdma/backchannel.c | |
| parent | 68778945e46f143ed7974b427a8065f69a4ce944 (diff) | |
| download | linux-5a6d1db4556940533f1a5b6521e522f3e46508ed.tar.xz | |
SUNRPC: Add a transport-specific private field in rpc_rqst
Currently there's a hidden and indirect mechanism for finding the
rpcrdma_req that goes with an rpc_rqst. It depends on getting from
the rq_buffer pointer in struct rpc_rqst to the struct
rpcrdma_regbuf that controls that buffer, and then to the struct
rpcrdma_req it goes with.
This was done back in the day to avoid the need to add a per-rqst
pointer or to alter the buf_free API when support for RPC-over-RDMA
was introduced.
I'm about to change the way regbuf's work to support larger inline
thresholds. Now is a good time to replace this indirect mechanism
with something that is more straightforward. I guess this should be
considered a clean up.
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
Diffstat (limited to 'net/sunrpc/xprtrdma/backchannel.c')
| -rw-r--r-- | net/sunrpc/xprtrdma/backchannel.c | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/net/sunrpc/xprtrdma/backchannel.c b/net/sunrpc/xprtrdma/backchannel.c index d3cfaf281e55..c4904f881640 100644 --- a/net/sunrpc/xprtrdma/backchannel.c +++ b/net/sunrpc/xprtrdma/backchannel.c @@ -55,11 +55,9 @@ static int rpcrdma_bc_setup_rqst(struct rpcrdma_xprt *r_xprt, rb = rpcrdma_alloc_regbuf(ia, size, GFP_KERNEL); if (IS_ERR(rb)) goto out_fail; - rb->rg_owner = req; req->rl_sendbuf = rb; - /* so that rpcr_to_rdmar works when receiving a request */ - rqst->rq_buffer = (void *)req->rl_sendbuf->rg_base; - xdr_buf_init(&rqst->rq_snd_buf, rqst->rq_buffer, size); + xdr_buf_init(&rqst->rq_snd_buf, rb->rg_base, size); + rpcrdma_set_xprtdata(rqst, req); return 0; out_fail: |