diff --git a/fs/nfs/dir.c b/fs/nfs/dir.c
index 7483722162fa..cb22a9f9ae7e 100644
--- a/fs/nfs/dir.c
+++ b/fs/nfs/dir.c
@@ -1529,8 +1529,13 @@ int nfs_atomic_open(struct inode *dir, struct dentry *dentry,
 		return -ENAMETOOLONG;
 
 	if (open_flags & O_CREAT) {
+		struct nfs_server *server = NFS_SERVER(dir);
+
+		if (!(server->attr_bitmask[2] & FATTR4_WORD2_MODE_UMASK))
+			mode &= ~current_umask();
+
 		attr.ia_valid |= ATTR_MODE;
-		attr.ia_mode = mode & ~current_umask();
+		attr.ia_mode = mode;
 	}
 	if (open_flags & O_TRUNC) {
 		attr.ia_valid |= ATTR_SIZE;
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index c5a508669655..d33242c8d95d 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1224,6 +1224,7 @@ static struct nfs4_opendata *nfs4_opendata_alloc(struct dentry *dentry,
 	atomic_inc(&sp->so_count);
 	p->o_arg.open_flags = flags;
 	p->o_arg.fmode = fmode & (FMODE_READ|FMODE_WRITE);
+	p->o_arg.umask = current_umask();
 	p->o_arg.claim = nfs4_map_atomic_open_claim(server, claim);
 	p->o_arg.share_access = nfs4_map_atomic_open_share(server,
 			fmode, flags);
@@ -3337,7 +3338,7 @@ static void nfs4_close_context(struct nfs_open_context *ctx, int is_sync)
 
 #define FATTR4_WORD1_NFS40_MASK (2*FATTR4_WORD1_MOUNTED_ON_FILEID - 1UL)
 #define FATTR4_WORD2_NFS41_MASK (2*FATTR4_WORD2_SUPPATTR_EXCLCREAT - 1UL)
-#define FATTR4_WORD2_NFS42_MASK (2*FATTR4_WORD2_SECURITY_LABEL - 1UL)
+#define FATTR4_WORD2_NFS42_MASK (2*FATTR4_WORD2_MODE_UMASK - 1UL)
 
 static int _nfs4_server_capabilities(struct nfs_server *server, struct nfs_fh *fhandle)
 {
@@ -4010,6 +4011,7 @@ static int
 nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 		 int flags)
 {
+	struct nfs_server *server = NFS_SERVER(dir);
 	struct nfs4_label l, *ilabel = NULL;
 	struct nfs_open_context *ctx;
 	struct nfs4_state *state;
@@ -4021,7 +4023,8 @@ nfs4_proc_create(struct inode *dir, struct dentry *dentry, struct iattr *sattr,
 
 	ilabel = nfs4_label_init_security(dir, dentry, sattr, &l);
 
-	sattr->ia_mode &= ~current_umask();
+	if (!(server->attr_bitmask[2] & FATTR4_WORD2_MODE_UMASK))
+		sattr->ia_mode &= ~current_umask();
 	state = nfs4_do_open(dir, ctx, flags, sattr, ilabel, NULL);
 	if (IS_ERR(state)) {
 		status = PTR_ERR(state);
@@ -4229,6 +4232,7 @@ static struct nfs4_createdata *nfs4_alloc_createdata(struct inode *dir,
 		data->arg.attrs = sattr;
 		data->arg.ftype = ftype;
 		data->arg.bitmask = nfs4_bitmask(server, data->label);
+		data->arg.umask = current_umask();
 		data->res.server = server;
 		data->res.fh = &data->fh;
 		data->res.fattr = &data->fattr;
@@ -4326,13 +4330,15 @@ out:
 static int nfs4_proc_mkdir(struct inode *dir, struct dentry *dentry,
 		struct iattr *sattr)
 {
+	struct nfs_server *server = NFS_SERVER(dir);
 	struct nfs4_exception exception = { };
 	struct nfs4_label l, *label = NULL;
 	int err;
 
 	label = nfs4_label_init_security(dir, dentry, sattr, &l);
 
-	sattr->ia_mode &= ~current_umask();
+	if (!(server->attr_bitmask[2] & FATTR4_WORD2_MODE_UMASK))
+		sattr->ia_mode &= ~current_umask();
 	do {
 		err = _nfs4_proc_mkdir(dir, dentry, sattr, label);
 		trace_nfs4_mkdir(dir, &dentry->d_name, err);
@@ -4435,13 +4441,15 @@ out:
 static int nfs4_proc_mknod(struct inode *dir, struct dentry *dentry,
 		struct iattr *sattr, dev_t rdev)
 {
+	struct nfs_server *server = NFS_SERVER(dir);
 	struct nfs4_exception exception = { };
 	struct nfs4_label l, *label = NULL;
 	int err;
 
 	label = nfs4_label_init_security(dir, dentry, sattr, &l);
 
-	sattr->ia_mode &= ~current_umask();
+	if (!(server->attr_bitmask[2] & FATTR4_WORD2_MODE_UMASK))
+		sattr->ia_mode &= ~current_umask();
 	do {
 		err = _nfs4_proc_mknod(dir, dentry, sattr, label, rdev);
 		trace_nfs4_mknod(dir, &dentry->d_name, err);
diff --git a/fs/nfs/nfs4xdr.c b/fs/nfs/nfs4xdr.c
index 1c1768a8fcd1..1af6268a7d8c 100644
--- a/fs/nfs/nfs4xdr.c
+++ b/fs/nfs/nfs4xdr.c
@@ -52,6 +52,7 @@
 #include <linux/nfs.h>
 #include <linux/nfs4.h>
 #include <linux/nfs_fs.h>
+#include <linux/fs_struct.h>
 
 #include "nfs4_fs.h"
 #include "internal.h"
@@ -1008,7 +1009,7 @@ static void encode_nfs4_verifier(struct xdr_stream *xdr, const nfs4_verifier *ve
 static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
 				const struct nfs4_label *label,
 				const struct nfs_server *server,
-				bool excl_check)
+				bool excl_check, const umode_t *umask)
 {
 	char owner_name[IDMAP_NAMESZ];
 	char owner_group[IDMAP_NAMESZ];
@@ -1022,18 +1023,21 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
 
 	/*
 	 * We reserve enough space to write the entire attribute buffer at once.
-	 * In the worst-case, this would be
-	 * 16(bitmap) + 4(attrlen) + 8(size) + 4(mode) + 4(atime) + 4(mtime)
-	 * = 40 bytes, plus any contribution from variable-length fields
-	 *            such as owner/group.
 	 */
 	if (iap->ia_valid & ATTR_SIZE) {
 		bmval[0] |= FATTR4_WORD0_SIZE;
 		len += 8;
 	}
+	if (!(server->attr_bitmask[2] & FATTR4_WORD2_MODE_UMASK))
+		umask = NULL;
 	if (iap->ia_valid & ATTR_MODE) {
-		bmval[1] |= FATTR4_WORD1_MODE;
-		len += 4;
+		if (umask) {
+			bmval[2] |= FATTR4_WORD2_MODE_UMASK;
+			len += 8;
+		} else {
+			bmval[1] |= FATTR4_WORD1_MODE;
+			len += 4;
+		}
 	}
 	if (iap->ia_valid & ATTR_UID) {
 		owner_namelen = nfs_map_uid_to_name(server, iap->ia_uid, owner_name, IDMAP_NAMESZ);
@@ -1134,6 +1138,10 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
 		*p++ = cpu_to_be32(label->len);
 		p = xdr_encode_opaque_fixed(p, label->label, label->len);
 	}
+	if (bmval[2] & FATTR4_WORD2_MODE_UMASK) {
+		*p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
+		*p++ = cpu_to_be32(*umask);
+	}
 
 /* out: */
 }
@@ -1188,7 +1196,8 @@ static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *
 	}
 
 	encode_string(xdr, create->name->len, create->name->name);
-	encode_attrs(xdr, create->attrs, create->label, create->server, false);
+	encode_attrs(xdr, create->attrs, create->label, create->server, false,
+		     &create->umask);
 }
 
 static void encode_getattr_one(struct xdr_stream *xdr, uint32_t bitmap, struct compound_hdr *hdr)
@@ -1408,11 +1417,13 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
 	switch(arg->createmode) {
 	case NFS4_CREATE_UNCHECKED:
 		*p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
-		encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false);
+		encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false,
+			     &arg->umask);
 		break;
 	case NFS4_CREATE_GUARDED:
 		*p = cpu_to_be32(NFS4_CREATE_GUARDED);
-		encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false);
+		encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, false,
+			     &arg->umask);
 		break;
 	case NFS4_CREATE_EXCLUSIVE:
 		*p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
@@ -1421,7 +1432,8 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
 	case NFS4_CREATE_EXCLUSIVE4_1:
 		*p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
 		encode_nfs4_verifier(xdr, &arg->u.verifier);
-		encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, true);
+		encode_attrs(xdr, arg->u.attrs, arg->label, arg->server, true,
+			     &arg->umask);
 	}
 }
 
@@ -1677,7 +1689,7 @@ static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs
 {
 	encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
 	encode_nfs4_stateid(xdr, &arg->stateid);
-	encode_attrs(xdr, arg->iap, arg->label, server, false);
+	encode_attrs(xdr, arg->iap, arg->label, server, false, NULL);
 }
 
 static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
diff --git a/include/linux/nfs4.h b/include/linux/nfs4.h
index 9094faf0699d..bca536341d1a 100644
--- a/include/linux/nfs4.h
+++ b/include/linux/nfs4.h
@@ -440,6 +440,7 @@ enum lock_type4 {
 #define FATTR4_WORD2_MDSTHRESHOLD       (1UL << 4)
 #define FATTR4_WORD2_CLONE_BLKSIZE	(1UL << 13)
 #define FATTR4_WORD2_SECURITY_LABEL     (1UL << 16)
+#define FATTR4_WORD2_MODE_UMASK		(1UL << 17)
 
 /* MDS threshold bitmap bits */
 #define THRESHOLD_RD                    (1UL << 0)
diff --git a/include/linux/nfs_xdr.h b/include/linux/nfs_xdr.h
index 617cfaa20ffc..348f7c158084 100644
--- a/include/linux/nfs_xdr.h
+++ b/include/linux/nfs_xdr.h
@@ -433,6 +433,7 @@ struct nfs_openargs {
 	enum open_claim_type4	claim;
 	enum createmode4	createmode;
 	const struct nfs4_label *label;
+	umode_t			umask;
 };
 
 struct nfs_openres {
@@ -958,6 +959,7 @@ struct nfs4_create_arg {
 	const struct nfs_fh *		dir_fh;
 	const u32 *			bitmask;
 	const struct nfs4_label		*label;
+	umode_t				umask;
 };
 
 struct nfs4_create_res {