File-copy from v4.4.100

This is the result of 'cp' from a linux-stable tree with the 'v4.4.100'
tag checked out (commit 26d6298789e695c9f627ce49a7bbd2286405798a) on
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Please refer to that tree for all history prior to this point.

Change-Id: I8a9ee2aea93cd29c52c847d0ce33091a73ae6afe
diff --git a/include/uapi/linux/nfs_mount.h b/include/uapi/linux/nfs_mount.h
new file mode 100644
index 0000000..64b0f22
--- /dev/null
+++ b/include/uapi/linux/nfs_mount.h
@@ -0,0 +1,77 @@
+#ifndef _LINUX_NFS_MOUNT_H
+#define _LINUX_NFS_MOUNT_H
+
+/*
+ *  linux/include/linux/nfs_mount.h
+ *
+ *  Copyright (C) 1992  Rick Sladkey
+ *
+ *  structure passed from user-space to kernel-space during an nfs mount
+ */
+#include <linux/in.h>
+#include <linux/nfs.h>
+#include <linux/nfs2.h>
+#include <linux/nfs3.h>
+
+/*
+ * WARNING!  Do not delete or change the order of these fields.  If
+ * a new field is required then add it to the end.  The version field
+ * tracks which fields are present.  This will ensure some measure of
+ * mount-to-kernel version compatibility.  Some of these aren't used yet
+ * but here they are anyway.
+ */
+#define NFS_MOUNT_VERSION	6
+#define NFS_MAX_CONTEXT_LEN	256
+
+struct nfs_mount_data {
+	int		version;		/* 1 */
+	int		fd;			/* 1 */
+	struct nfs2_fh	old_root;		/* 1 */
+	int		flags;			/* 1 */
+	int		rsize;			/* 1 */
+	int		wsize;			/* 1 */
+	int		timeo;			/* 1 */
+	int		retrans;		/* 1 */
+	int		acregmin;		/* 1 */
+	int		acregmax;		/* 1 */
+	int		acdirmin;		/* 1 */
+	int		acdirmax;		/* 1 */
+	struct sockaddr_in addr;		/* 1 */
+	char		hostname[NFS_MAXNAMLEN + 1];		/* 1 */
+	int		namlen;			/* 2 */
+	unsigned int	bsize;			/* 3 */
+	struct nfs3_fh	root;			/* 4 */
+	int		pseudoflavor;		/* 5 */
+	char		context[NFS_MAX_CONTEXT_LEN + 1];	/* 6 */
+};
+
+/* bits in the flags field visible to user space */
+
+#define NFS_MOUNT_SOFT		0x0001	/* 1 */
+#define NFS_MOUNT_INTR		0x0002	/* 1 */ /* now unused, but ABI */
+#define NFS_MOUNT_SECURE	0x0004	/* 1 */
+#define NFS_MOUNT_POSIX		0x0008	/* 1 */
+#define NFS_MOUNT_NOCTO		0x0010	/* 1 */
+#define NFS_MOUNT_NOAC		0x0020	/* 1 */
+#define NFS_MOUNT_TCP		0x0040	/* 2 */
+#define NFS_MOUNT_VER3		0x0080	/* 3 */
+#define NFS_MOUNT_KERBEROS	0x0100	/* 3 */
+#define NFS_MOUNT_NONLM		0x0200	/* 3 */
+#define NFS_MOUNT_BROKEN_SUID	0x0400	/* 4 */
+#define NFS_MOUNT_NOACL		0x0800	/* 4 */
+#define NFS_MOUNT_STRICTLOCK	0x1000	/* reserved for NFSv4 */
+#define NFS_MOUNT_SECFLAVOUR	0x2000	/* 5 non-text parsed mount data only */
+#define NFS_MOUNT_NORDIRPLUS	0x4000	/* 5 */
+#define NFS_MOUNT_UNSHARED	0x8000	/* 5 */
+#define NFS_MOUNT_FLAGMASK	0xFFFF
+
+/* The following are for internal use only */
+#define NFS_MOUNT_LOOKUP_CACHE_NONEG	0x10000
+#define NFS_MOUNT_LOOKUP_CACHE_NONE	0x20000
+#define NFS_MOUNT_NORESVPORT		0x40000
+#define NFS_MOUNT_LEGACY_INTERFACE	0x80000
+
+#define NFS_MOUNT_LOCAL_FLOCK	0x100000
+#define NFS_MOUNT_LOCAL_FCNTL	0x200000
+
+#endif