From 4ade9821602ada8f56f3a3eb444dedbe42f1730e Mon Sep 17 00:00:00 2001 From: Trond Myklebust Date: Sun, 4 Mar 2012 18:13:57 -0500 Subject: NFSv4: Add a helper for encoding NFSv4 sequence ids Signed-off-by: Trond Myklebust --- fs/nfs/nfs4xdr.c | 47 ++++++++++++++++++++++++++++------------------- 1 file changed, 28 insertions(+), 19 deletions(-) diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index d6e8306d02a7..3b38ca5bafe8 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -901,6 +901,20 @@ static void encode_string(struct xdr_stream *xdr, unsigned int len, const char * xdr_encode_opaque(p, str, len); } +static void encode_uint32(struct xdr_stream *xdr, u32 n) +{ + __be32 *p; + + p = reserve_space(xdr, 4); + *p = cpu_to_be32(n); +} + +static void encode_nfs4_seqid(struct xdr_stream *xdr, + const struct nfs_seqid *seqid) +{ + encode_uint32(xdr, seqid->sequence->counter); +} + static void encode_compound_hdr(struct xdr_stream *xdr, struct rpc_rqst *req, struct compound_hdr *hdr) @@ -1074,9 +1088,9 @@ static void encode_close(struct xdr_stream *xdr, const struct nfs_closeargs *arg { __be32 *p; - p = reserve_space(xdr, 8); - *p++ = cpu_to_be32(OP_CLOSE); - *p = cpu_to_be32(arg->seqid->sequence->counter); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_CLOSE); + encode_nfs4_seqid(xdr, arg->seqid); encode_nfs4_stateid(xdr, arg->stateid); hdr->nops++; hdr->replen += decode_close_maxsz; @@ -1264,17 +1278,14 @@ 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); - *p = cpu_to_be32(args->open_seqid->sequence->counter); + encode_nfs4_seqid(xdr, args->open_seqid); encode_nfs4_stateid(xdr, args->open_stateid); - p = reserve_space(xdr, 4); - *p = cpu_to_be32(args->lock_seqid->sequence->counter); + encode_nfs4_seqid(xdr, args->lock_seqid); encode_lockowner(xdr, &args->lock_owner); } else { encode_nfs4_stateid(xdr, args->lock_stateid); - p = reserve_space(xdr, 4); - *p = cpu_to_be32(args->lock_seqid->sequence->counter); + encode_nfs4_seqid(xdr, args->lock_seqid); } hdr->nops++; hdr->replen += decode_lock_maxsz; @@ -1298,10 +1309,10 @@ static void encode_locku(struct xdr_stream *xdr, const struct nfs_locku_args *ar { __be32 *p; - p = reserve_space(xdr, 12); + p = reserve_space(xdr, 8); *p++ = cpu_to_be32(OP_LOCKU); - *p++ = cpu_to_be32(nfs4_lock_type(args->fl, 0)); - *p = cpu_to_be32(args->seqid->sequence->counter); + *p = cpu_to_be32(nfs4_lock_type(args->fl, 0)); + encode_nfs4_seqid(xdr, args->seqid); encode_nfs4_stateid(xdr, args->stateid); p = reserve_space(xdr, 16); p = xdr_encode_hyper(p, args->fl->fl_start); @@ -1360,9 +1371,9 @@ static inline void encode_openhdr(struct xdr_stream *xdr, const struct nfs_opena * opcode 4, seqid 4, share_access 4, share_deny 4, clientid 8, ownerlen 4, * owner 4 = 32 */ - p = reserve_space(xdr, 8); - *p++ = cpu_to_be32(OP_OPEN); - *p = cpu_to_be32(arg->seqid->sequence->counter); + p = reserve_space(xdr, 4); + *p = cpu_to_be32(OP_OPEN); + encode_nfs4_seqid(xdr, arg->seqid); encode_share_access(xdr, arg->fmode); p = reserve_space(xdr, 32); p = xdr_encode_hyper(p, arg->clientid); @@ -1496,8 +1507,7 @@ static void encode_open_confirm(struct xdr_stream *xdr, const struct nfs_open_co p = reserve_space(xdr, 4); *p = cpu_to_be32(OP_OPEN_CONFIRM); encode_nfs4_stateid(xdr, arg->stateid); - p = reserve_space(xdr, 4); - *p = cpu_to_be32(arg->seqid->sequence->counter); + encode_nfs4_seqid(xdr, arg->seqid); hdr->nops++; hdr->replen += decode_open_confirm_maxsz; } @@ -1509,8 +1519,7 @@ static void encode_open_downgrade(struct xdr_stream *xdr, const struct nfs_close p = reserve_space(xdr, 4); *p = cpu_to_be32(OP_OPEN_DOWNGRADE); encode_nfs4_stateid(xdr, arg->stateid); - p = reserve_space(xdr, 4); - *p = cpu_to_be32(arg->seqid->sequence->counter); + encode_nfs4_seqid(xdr, arg->seqid); encode_share_access(xdr, arg->fmode); hdr->nops++; hdr->replen += decode_open_downgrade_maxsz; -- cgit v1.2.3