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svcrdma: Another sendto chunk list parsing update

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Commit 5fdca65314 ("svcrdma: Renovate sendto chunk list parsing")
missed a spot. svc_rdma_xdr_get_reply_hdr_len() also assumes the
Write list has only one Write chunk. There's no harm in making this
code more general.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
This commit is contained in:
Chuck Lever
2017-02-07 11:58:15 -05:00
committed by J. Bruce Fields
parent b880092109
commit cbaf58032e
4 changed files with 36 additions and 23 deletions
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9
include/linux/sunrpc/rpc_rdma.h
View File

@@ -109,6 +109,15 @@ struct rpcrdma_msg {
} rm_body;
};
/*
* XDR sizes, in quads
*/
enum {
rpcrdma_fixed_maxsz = 4,
rpcrdma_segment_maxsz = 4,
rpcrdma_readchunk_maxsz = 2 + rpcrdma_segment_maxsz,
};
/*
* Smallest RPC/RDMA header: rm_xid through rm_type, then rm_nochunks
*/

2
include/linux/sunrpc/svc_rdma.h
View File

@@ -218,7 +218,7 @@ extern void svc_rdma_xdr_encode_reply_header(struct svcxprt_rdma *,
struct rpcrdma_msg *,
struct rpcrdma_msg *,
enum rpcrdma_proc);
extern int svc_rdma_xdr_get_reply_hdr_len(struct rpcrdma_msg *);
extern unsigned int svc_rdma_xdr_get_reply_hdr_len(__be32 *rdma_resp);
/* svc_rdma_recvfrom.c */
extern int svc_rdma_recvfrom(struct svc_rqst *);