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NFSv4: Clean up for lockowner XDR encoding

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Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
This commit is contained in:
Trond Myklebust 2010-06-25 18:11:43 -04:00
parent f11ac8db5d
commit daccbded7f
1 changed files with 20 additions and 12 deletions
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32
fs/nfs/nfs4xdr.c
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@ -202,14 +202,17 @@ static int nfs4_stat_to_errno(int);
#define encode_link_maxsz (op_encode_hdr_maxsz + \
nfs4_name_maxsz)
#define decode_link_maxsz (op_decode_hdr_maxsz + decode_change_info_maxsz)
#define encode_lockowner_maxsz (7)
#define encode_lock_maxsz (op_encode_hdr_maxsz + \
7 + \
1 + encode_stateid_maxsz + 8)
1 + encode_stateid_maxsz + 1 + \
encode_lockowner_maxsz)
#define decode_lock_denied_maxsz \
(8 + decode_lockowner_maxsz)
#define decode_lock_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_lockt_maxsz (op_encode_hdr_maxsz + 12)
#define encode_lockt_maxsz (op_encode_hdr_maxsz + 5 + \
encode_lockowner_maxsz)
#define decode_lockt_maxsz (op_decode_hdr_maxsz + \
decode_lock_denied_maxsz)
#define encode_locku_maxsz (op_encode_hdr_maxsz + 3 + \
@ -1042,6 +1045,17 @@ static inline uint64_t nfs4_lock_length(struct file_lock *fl)
return fl->fl_end - fl->fl_start + 1;
}
static void encode_lockowner(struct xdr_stream *xdr, const struct nfs_lowner *lowner)
{
__be32 *p;
p = reserve_space(xdr, 28);
p = xdr_encode_hyper(p, lowner->clientid);
*p++ = cpu_to_be32(16);
p = xdr_encode_opaque_fixed(p, "lock id:", 8);
xdr_encode_hyper(p, lowner->id);
}
/*
* opcode,type,reclaim,offset,length,new_lock_owner = 32
* open_seqid,open_stateid,lock_seqid,lock_owner.clientid, lock_owner.id = 40
@ -1058,14 +1072,11 @@ static void encode_lock(struct xdr_stream *xdr, const struct nfs_lock_args *args
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
*p = cpu_to_be32(args->new_lock_owner);
if (args->new_lock_owner){
p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+32);
p = reserve_space(xdr, 4+NFS4_STATEID_SIZE+4);
*p++ = cpu_to_be32(args->open_seqid->sequence->counter);
p = xdr_encode_opaque_fixed(p, args->open_stateid->data, NFS4_STATEID_SIZE);
*p++ = cpu_to_be32(args->lock_seqid->sequence->counter);
p = xdr_encode_hyper(p, args->lock_owner.clientid);
*p++ = cpu_to_be32(16);
p = xdr_encode_opaque_fixed(p, "lock id:", 8);
xdr_encode_hyper(p, args->lock_owner.id);
encode_lockowner(xdr, &args->lock_owner);
}
else {
p = reserve_space(xdr, NFS4_STATEID_SIZE+4);
@ -1080,15 +1091,12 @@ static void encode_lockt(struct xdr_stream *xdr, const struct nfs_lockt_args *ar
{
__be32 *p;
p = reserve_space(xdr, 52);
p = reserve_space(xdr, 24);
*p++ = cpu_to_be32(OP_LOCKT);
*p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0));
p = xdr_encode_hyper(p, args->fl->fl_start);
p = xdr_encode_hyper(p, nfs4_lock_length(args->fl));
p = xdr_encode_hyper(p, args->lock_owner.clientid);
*p++ = cpu_to_be32(16);
p = xdr_encode_opaque_fixed(p, "lock id:", 8);
xdr_encode_hyper(p, args->lock_owner.id);
encode_lockowner(xdr, &args->lock_owner);
hdr->nops++;
hdr->replen += decode_lockt_maxsz;
}