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authorTrond Myklebust <Trond.Myklebust@netapp.com>2006-01-03 09:55:38 +0100
committerTrond Myklebust <Trond.Myklebust@netapp.com>2006-01-06 14:58:51 -0500
commitfa178f29c0f8a0dce748181a5351f4a92fd4f455 (patch)
tree07de5ced8d16d832ebed98c58a2c0498affa12db /fs/nfs/nfs4xdr.c
parentbeb2a5ec386e5ce6891ebd1c06b913da04354b40 (diff)
downloadop-kernel-dev-fa178f29c0f8a0dce748181a5351f4a92fd4f455.zip
op-kernel-dev-fa178f29c0f8a0dce748181a5351f4a92fd4f455.tar.gz
NFSv4: Ensure DELEGRETURN returns attributes
Upon return of a write delegation, the server will almost always bump the change attribute. Ensure that we pick up that change so that we don't invalidate our data cache unnecessarily. Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Diffstat (limited to 'fs/nfs/nfs4xdr.c')
-rw-r--r--fs/nfs/nfs4xdr.c33
1 files changed, 22 insertions, 11 deletions
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 5d6bda4..12be1d6 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -392,9 +392,11 @@ static int nfs_stat_to_errno(int);
decode_getattr_maxsz)
#define NFS4_enc_delegreturn_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
- encode_delegreturn_maxsz)
+ encode_delegreturn_maxsz + \
+ encode_getattr_maxsz)
#define NFS4_dec_delegreturn_sz (compound_decode_hdr_maxsz + \
- decode_delegreturn_maxsz)
+ decode_delegreturn_maxsz + \
+ decode_getattr_maxsz)
#define NFS4_enc_getacl_sz (compound_encode_hdr_maxsz + \
encode_putfh_maxsz + \
encode_getattr_maxsz)
@@ -1983,14 +1985,20 @@ static int nfs4_xdr_enc_delegreturn(struct rpc_rqst *req, uint32_t *p, const str
{
struct xdr_stream xdr;
struct compound_hdr hdr = {
- .nops = 2,
+ .nops = 3,
};
int status;
xdr_init_encode(&xdr, &req->rq_snd_buf, p);
encode_compound_hdr(&xdr, &hdr);
- if ((status = encode_putfh(&xdr, args->fhandle)) == 0)
- status = encode_delegreturn(&xdr, args->stateid);
+ status = encode_putfh(&xdr, args->fhandle);
+ if (status != 0)
+ goto out;
+ status = encode_delegreturn(&xdr, args->stateid);
+ if (status != 0)
+ goto out;
+ status = encode_getfattr(&xdr, args->bitmask);
+out:
return status;
}
@@ -4184,7 +4192,7 @@ static int nfs4_xdr_dec_setclientid_confirm(struct rpc_rqst *req, uint32_t *p, s
/*
* DELEGRETURN request
*/
-static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *dummy)
+static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, struct nfs4_delegreturnres *res)
{
struct xdr_stream xdr;
struct compound_hdr hdr;
@@ -4192,11 +4200,14 @@ static int nfs4_xdr_dec_delegreturn(struct rpc_rqst *rqstp, uint32_t *p, void *d
xdr_init_decode(&xdr, &rqstp->rq_rcv_buf, p);
status = decode_compound_hdr(&xdr, &hdr);
- if (status == 0) {
- status = decode_putfh(&xdr);
- if (status == 0)
- status = decode_delegreturn(&xdr);
- }
+ if (status != 0)
+ goto out;
+ status = decode_putfh(&xdr);
+ if (status != 0)
+ goto out;
+ status = decode_delegreturn(&xdr);
+ decode_getfattr(&xdr, res->fattr, res->server);
+out:
return status;
}
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