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-rw-r--r--fs/nfsd/nfs4proc.c15
-rw-r--r--fs/nfsd/nfs4xdr.c17
-rw-r--r--include/linux/nfs4.h8
-rw-r--r--include/linux/nfsd/xdr4.h10
4 files changed, 43 insertions, 7 deletions
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e206053..b2883e9 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -93,6 +93,21 @@ do_open_lookup(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_o
open->op_truncate = 0;
if (open->op_create) {
+ /* FIXME: check session persistence and pnfs flags.
+ * The nfsv4.1 spec requires the following semantics:
+ *
+ * Persistent | pNFS | Server REQUIRED | Client Allowed
+ * Reply Cache | server | |
+ * -------------+--------+-----------------+--------------------
+ * no | no | EXCLUSIVE4_1 | EXCLUSIVE4_1
+ * | | | (SHOULD)
+ * | | and EXCLUSIVE4 | or EXCLUSIVE4
+ * | | | (SHOULD NOT)
+ * no | yes | EXCLUSIVE4_1 | EXCLUSIVE4_1
+ * yes | no | GUARDED4 | GUARDED4
+ * yes | yes | GUARDED4 | GUARDED4
+ */
+
/*
* Note: create modes (UNCHECKED,GUARDED...) are the same
* in NFSv4 as in v3.
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 533d14f..b820c31 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -260,6 +260,12 @@ static u32 nfsd_attrmask[] = {
NFSD_WRITEABLE_ATTRS_WORD2
};
+static u32 nfsd41_ex_attrmask[] = {
+ NFSD_SUPPATTR_EXCLCREAT_WORD0,
+ NFSD_SUPPATTR_EXCLCREAT_WORD1,
+ NFSD_SUPPATTR_EXCLCREAT_WORD2
+};
+
static __be32
nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval, u32 *writable,
struct iattr *iattr, struct nfs4_acl **acl)
@@ -684,6 +690,17 @@ nfsd4_decode_open(struct nfsd4_compoundargs *argp, struct nfsd4_open *open)
READ_BUF(8);
COPYMEM(open->op_verf.data, 8);
break;
+ case NFS4_CREATE_EXCLUSIVE4_1:
+ if (argp->minorversion < 1)
+ goto xdr_error;
+ READ_BUF(8);
+ COPYMEM(open->op_verf.data, 8);
+ status = nfsd4_decode_fattr(argp, open->op_bmval,
+ nfsd41_ex_attrmask, &open->op_iattr,
+ &open->op_acl);
+ if (status)
+ goto out;
+ break;
default:
goto xdr_error;
}
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index ec3cd49..e3f0cbc 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -368,7 +368,13 @@ enum opentype4 {
enum createmode4 {
NFS4_CREATE_UNCHECKED = 0,
NFS4_CREATE_GUARDED = 1,
- NFS4_CREATE_EXCLUSIVE = 2
+ NFS4_CREATE_EXCLUSIVE = 2,
+ /*
+ * New to NFSv4.1. If session is persistent,
+ * GUARDED4 MUST be used. Otherwise, use
+ * EXCLUSIVE4_1 instead of EXCLUSIVE4.
+ */
+ NFS4_CREATE_EXCLUSIVE4_1 = 3
};
enum limit_by4 {
diff --git a/include/linux/nfsd/xdr4.h b/include/linux/nfsd/xdr4.h
index c07d8fe..f80d601 100644
--- a/include/linux/nfsd/xdr4.h
+++ b/include/linux/nfsd/xdr4.h
@@ -219,10 +219,8 @@ struct nfsd4_open {
u32 op_create; /* request */
u32 op_createmode; /* request */
u32 op_bmval[3]; /* request */
- union { /* request */
- struct iattr iattr; /* UNCHECKED4,GUARDED4 */
- nfs4_verifier verf; /* EXCLUSIVE4 */
- } u;
+ struct iattr iattr; /* UNCHECKED4, GUARDED4, EXCLUSIVE4_1 */
+ nfs4_verifier verf; /* EXCLUSIVE4 */
clientid_t op_clientid; /* request */
struct xdr_netobj op_owner; /* request */
u32 op_seqid; /* request */
@@ -236,8 +234,8 @@ struct nfsd4_open {
struct nfs4_stateowner *op_stateowner; /* used during processing */
struct nfs4_acl *op_acl;
};
-#define op_iattr u.iattr
-#define op_verf u.verf
+#define op_iattr iattr
+#define op_verf verf
struct nfsd4_open_confirm {
stateid_t oc_req_stateid /* request */;
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