NFS: Move mount parameterisation bits into their own file

nfs-y 			:= client.o dir.o file.o getroot.o inode.o super.o \

			   io.o direct.o pagelist.o read.o symlink.o unlink.o \

			   write.o namespace.o mount_clnt.o nfstrace.o \

			   export.o sysfs.o

			   export.o sysfs.o fs_context.o

nfs-$(CONFIG_ROOT_NFS)	+= nfsroot.o

nfs-$(CONFIG_SYSCTL)	+= sysctl.o

nfs-$(CONFIG_NFS_FSCACHE) += fscache.o fscache-index.o

#include <linux/mount.h>

#include <linux/security.h>

#include <linux/crc32.h>

#include <linux/sunrpc/addr.h>

#include <linux/nfs_page.h>

#include <linux/wait_bit.h>

extern const struct svc_version nfs4_callback_version4;

struct nfs_pageio_descriptor;

/* mount.c */

#define NFS_TEXT_DATA		1

extern struct nfs_parsed_mount_data *nfs_alloc_parsed_mount_data(void);

extern void nfs_free_parsed_mount_data(struct nfs_parsed_mount_data *data);

extern int nfs_parse_mount_options(char *raw, struct nfs_parsed_mount_data *mnt);

extern int nfs_validate_mount_data(struct file_system_type *fs_type,

				   void *options,

				   struct nfs_parsed_mount_data *args,

				   struct nfs_fh *mntfh,

				   const char *dev_name);

extern int nfs_validate_text_mount_data(void *options,

					struct nfs_parsed_mount_data *args,

					const char *dev_name);

/* pagelist.c */

extern int __init nfs_init_nfspagecache(void);

extern void nfs_destroy_nfspagecache(void);

	}

	return nfs_error_is_fatal(err);

}

/*

 * Select between a default port value and a user-specified port value.

 * If a zero value is set, then autobind will be used.

 */

static inline void nfs_set_port(struct sockaddr *sap, int *port,

				const unsigned short default_port)

{

	if (*port == NFS_UNSPEC_PORT)

		*port = default_port;

	rpc_set_port(sap, *port);

}