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rpcrdma: Fix comments about reverse-direction operation

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During the final stages of publication of RFC 8167, reviewers
requested that we use the term "reverse direction" rather than
"backwards direction". Update comments to reflect this preference.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever 2021-02-04 11:59:19 -05:00 committed by Anna Schumaker
parent 67b16625d1
commit 84dff5eb86
4 changed files with 8 additions and 12 deletions
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4
net/sunrpc/xprtrdma/backchannel.c
View File

@ -2,7 +2,7 @@
/*
* Copyright (c) 2015-2020, Oracle and/or its affiliates.
*
* Support for backward direction RPCs on RPC/RDMA.
* Support for reverse-direction RPCs on RPC/RDMA.
*/
#include <linux/sunrpc/xprt.h>
@ -208,7 +208,7 @@ create_req:
}
/**
* rpcrdma_bc_receive_call - Handle a backward direction call
* rpcrdma_bc_receive_call - Handle a reverse-direction Call
* @r_xprt: transport receiving the call
* @rep: receive buffer containing the call
*

6
net/sunrpc/xprtrdma/rpc_rdma.c
View File

@ -1151,14 +1151,10 @@ rpcrdma_is_bcall(struct rpcrdma_xprt *r_xprt, struct rpcrdma_rep *rep)
*/
p = xdr_inline_decode(xdr, 3 * sizeof(*p));
if (unlikely(!p))
goto out_short;
return true;
rpcrdma_bc_receive_call(r_xprt, rep);
return true;
out_short:
pr_warn("RPC/RDMA short backward direction call\n");
return true;
}
#else /* CONFIG_SUNRPC_BACKCHANNEL */
{

4
net/sunrpc/xprtrdma/svc_rdma_backchannel.c
View File

@ -2,7 +2,7 @@
/*
* Copyright (c) 2015-2018 Oracle. All rights reserved.
*
* Support for backward direction RPCs on RPC/RDMA (server-side).
* Support for reverse-direction RPCs on RPC/RDMA (server-side).
*/
#include <linux/sunrpc/svc_rdma.h>
@ -59,7 +59,7 @@ out_unlock:
spin_unlock(&xprt->queue_lock);
}
/* Send a backwards direction RPC call.
/* Send a reverse-direction RPC Call.
*
* Caller holds the connection's mutex and has already marshaled
* the RPC/RDMA request.

6
net/sunrpc/xprtrdma/xprt_rdma.h
View File

@ -98,9 +98,9 @@ struct rpcrdma_ep {
atomic_t re_completion_ids;
};
/* Pre-allocate extra Work Requests for handling backward receives
* and sends. This is a fixed value because the Work Queues are
* allocated when the forward channel is set up, long before the
/* Pre-allocate extra Work Requests for handling reverse-direction
* Receives and Sends. This is a fixed value because the Work Queues
* are allocated when the forward channel is set up, long before the
* backchannel is provisioned. This value is two times
* NFS4_DEF_CB_SLOT_TABLE_SIZE.
*/