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SUNRPC: Add xdr_stream::rqst field

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Having access to the controlling rpc_rqst means a trace point in the
XDR code can report:

 - the XID
 - the task ID and client ID
 - the p_name of RPC being processed

Subsequent patches will introduce such trace points.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
This commit is contained in:
Chuck Lever
2019-02-11 11:24:05 -05:00
committed by Anna Schumaker
parent 6f70138336
commit 0ccc61b1c7
8 changed files with 26 additions and 15 deletions
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5
fs/nfs/callback_xdr.c
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@@ -943,10 +943,11 @@ static __be32 nfs4_callback_compound(struct svc_rqst *rqstp)
};
unsigned int nops = 0;
xdr_init_decode(&xdr_in, &rqstp->rq_arg, rqstp->rq_arg.head[0].iov_base);
xdr_init_decode(&xdr_in, &rqstp->rq_arg,
rqstp->rq_arg.head[0].iov_base, NULL);
p = (__be32*)((char *)rqstp->rq_res.head[0].iov_base + rqstp->rq_res.head[0].iov_len);
xdr_init_encode(&xdr_out, &rqstp->rq_res, p);
xdr_init_encode(&xdr_out, &rqstp->rq_res, p, NULL);
status = decode_compound_hdr_arg(&xdr_in, &hdr_arg);
if (status == htonl(NFS4ERR_RESOURCE))