diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index ccada6856f0d68aa8060f6e42acedaa1b3924c99..21cfac7c2ff80adba52b7d05a3262e006fb8a9ce 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -862,9 +862,15 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry, p->o_arg.fh = NFS_FH(dir); p->o_arg.open_flags = flags; p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE); - /* ask server to check for all possible rights as results are cached */ - p->o_arg.access = NFS4_ACCESS_READ | NFS4_ACCESS_MODIFY | - NFS4_ACCESS_EXTEND | NFS4_ACCESS_EXECUTE; + /* don't put an ACCESS op in OPEN compound if O_EXCL, because ACCESS + * will return permission denied for all bits until close */ + if (!(flags & O_EXCL)) { + /* ask server to check for all possible rights as results + * are cached */ + p->o_arg.access = NFS4_ACCESS_READ | NFS4_ACCESS_MODIFY | + NFS4_ACCESS_EXTEND | NFS4_ACCESS_EXECUTE; + p->o_res.access_request = p->o_arg.access; + } p->o_arg.clientid = server->nfs_client->cl_clientid; p->o_arg.id.create_time = ktime_to_ns(sp->so_seqid.create_time); p->o_arg.id.uniquifier = sp->so_seqid.owner_id; diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c index 657483c34e2867c5c8dd3e1eda4046bfc61a0bbc..0d6030510fe27f81ccfaeddcaf55493bb6083487 100644 --- a/fs/nfs/nfs4xdr.c +++ b/fs/nfs/nfs4xdr.c @@ -2224,7 +2224,8 @@ static void nfs4_xdr_enc_open(struct rpc_rqst *req, struct xdr_stream *xdr, encode_putfh(xdr, args->fh, &hdr); encode_open(xdr, args, &hdr); encode_getfh(xdr, &hdr); - encode_access(xdr, args->access, &hdr); + if (args->access) + encode_access(xdr, args->access, &hdr); encode_getfattr_open(xdr, args->bitmask, args->open_bitmap, &hdr); encode_nops(&hdr); } @@ -2261,7 +2262,8 @@ static void nfs4_xdr_enc_open_noattr(struct rpc_rqst *req, encode_sequence(xdr, &args->seq_args, &hdr); encode_putfh(xdr, args->fh, &hdr); encode_open(xdr, args, &hdr); - encode_access(xdr, args->access, &hdr); + if (args->access) + encode_access(xdr, args->access, &hdr); encode_getfattr(xdr, args->bitmask, &hdr); encode_nops(&hdr); } @@ -6239,7 +6241,8 @@ static int nfs4_xdr_dec_open(struct rpc_rqst *rqstp, struct xdr_stream *xdr, status = decode_getfh(xdr, &res->fh); if (status) goto out; - decode_access(xdr, &res->access_supported, &res->access_result); + if (res->access_request) + decode_access(xdr, &res->access_supported, &res->access_result); decode_getfattr(xdr, res->f_attr, res->server); out: return status; @@ -6288,7 +6291,8 @@ static int nfs4_xdr_dec_open_noattr(struct rpc_rqst *rqstp, status = decode_open(xdr, res); if (status) goto out; - decode_access(xdr, &res->access_supported, &res->access_result); + if (res->access_request) + decode_access(xdr, &res->access_supported, &res->access_result); decode_getfattr(xdr, res->f_attr, res->server); out: return status; diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h index 655490dae95344bd398b042759df2991de229f18..a73ea89789d1b3375846b96656873c790d87d5a1 100644 --- a/include/linux/nfs_xdr.h +++ b/include/linux/nfs_xdr.h @@ -369,6 +369,7 @@ struct nfs_openres { struct nfs4_string *owner; struct nfs4_string *group_owner; struct nfs4_sequence_res seq_res; + __u32 access_request; __u32 access_supported; __u32 access_result; };