| #ifndef _LINUX_NFS_XDR_H | 
 | #define _LINUX_NFS_XDR_H | 
 |  | 
 | #include <linux/nfsacl.h> | 
 |  | 
 | /* | 
 |  * To change the maximum rsize and wsize supported by the NFS client, adjust | 
 |  * NFS_MAX_FILE_IO_SIZE.  64KB is a typical maximum, but some servers can | 
 |  * support a megabyte or more.  The default is left at 4096 bytes, which is | 
 |  * reasonable for NFS over UDP. | 
 |  */ | 
 | #define NFS_MAX_FILE_IO_SIZE	(1048576U) | 
 | #define NFS_DEF_FILE_IO_SIZE	(4096U) | 
 | #define NFS_MIN_FILE_IO_SIZE	(1024U) | 
 |  | 
 | struct nfs_fsid { | 
 | 	uint64_t		major; | 
 | 	uint64_t		minor; | 
 | }; | 
 |  | 
 | /* | 
 |  * Helper for checking equality between 2 fsids. | 
 |  */ | 
 | static inline int nfs_fsid_equal(const struct nfs_fsid *a, const struct nfs_fsid *b) | 
 | { | 
 | 	return a->major == b->major && a->minor == b->minor; | 
 | } | 
 |  | 
 | struct nfs_fattr { | 
 | 	unsigned short		valid;		/* which fields are valid */ | 
 | 	__u64			pre_size;	/* pre_op_attr.size	  */ | 
 | 	struct timespec		pre_mtime;	/* pre_op_attr.mtime	  */ | 
 | 	struct timespec		pre_ctime;	/* pre_op_attr.ctime	  */ | 
 | 	enum nfs_ftype		type;		/* always use NFSv2 types */ | 
 | 	__u32			mode; | 
 | 	__u32			nlink; | 
 | 	__u32			uid; | 
 | 	__u32			gid; | 
 | 	__u64			size; | 
 | 	union { | 
 | 		struct { | 
 | 			__u32	blocksize; | 
 | 			__u32	blocks; | 
 | 		} nfs2; | 
 | 		struct { | 
 | 			__u64	used; | 
 | 		} nfs3; | 
 | 	} du; | 
 | 	dev_t			rdev; | 
 | 	struct nfs_fsid		fsid; | 
 | 	__u64			fileid; | 
 | 	struct timespec		atime; | 
 | 	struct timespec		mtime; | 
 | 	struct timespec		ctime; | 
 | 	__u32			bitmap[2];	/* NFSv4 returned attribute bitmap */ | 
 | 	__u64			change_attr;	/* NFSv4 change attribute */ | 
 | 	__u64			pre_change_attr;/* pre-op NFSv4 change attribute */ | 
 | 	unsigned long		time_start; | 
 | }; | 
 |  | 
 | #define NFS_ATTR_WCC		0x0001		/* pre-op WCC data    */ | 
 | #define NFS_ATTR_FATTR		0x0002		/* post-op attributes */ | 
 | #define NFS_ATTR_FATTR_V3	0x0004		/* NFSv3 attributes */ | 
 | #define NFS_ATTR_FATTR_V4	0x0008		/* NFSv4 change attribute */ | 
 | #define NFS_ATTR_WCC_V4		0x0010		/* pre-op change attribute */ | 
 | #define NFS_ATTR_FATTR_V4_REFERRAL	0x0020		/* NFSv4 referral */ | 
 |  | 
 | /* | 
 |  * Info on the file system | 
 |  */ | 
 | struct nfs_fsinfo { | 
 | 	struct nfs_fattr	*fattr; /* Post-op attributes */ | 
 | 	__u32			rtmax;	/* max.  read transfer size */ | 
 | 	__u32			rtpref;	/* pref. read transfer size */ | 
 | 	__u32			rtmult;	/* reads should be multiple of this */ | 
 | 	__u32			wtmax;	/* max.  write transfer size */ | 
 | 	__u32			wtpref;	/* pref. write transfer size */ | 
 | 	__u32			wtmult;	/* writes should be multiple of this */ | 
 | 	__u32			dtpref;	/* pref. readdir transfer size */ | 
 | 	__u64			maxfilesize; | 
 | 	__u32			lease_time; /* in seconds */ | 
 | }; | 
 |  | 
 | struct nfs_fsstat { | 
 | 	struct nfs_fattr	*fattr; /* Post-op attributes */ | 
 | 	__u64			tbytes;	/* total size in bytes */ | 
 | 	__u64			fbytes;	/* # of free bytes */ | 
 | 	__u64			abytes;	/* # of bytes available to user */ | 
 | 	__u64			tfiles;	/* # of files */ | 
 | 	__u64			ffiles;	/* # of free files */ | 
 | 	__u64			afiles;	/* # of files available to user */ | 
 | }; | 
 |  | 
 | struct nfs2_fsstat { | 
 | 	__u32			tsize;  /* Server transfer size */ | 
 | 	__u32			bsize;  /* Filesystem block size */ | 
 | 	__u32			blocks; /* No. of "bsize" blocks on filesystem */ | 
 | 	__u32			bfree;  /* No. of free "bsize" blocks */ | 
 | 	__u32			bavail; /* No. of available "bsize" blocks */ | 
 | }; | 
 |  | 
 | struct nfs_pathconf { | 
 | 	struct nfs_fattr	*fattr; /* Post-op attributes */ | 
 | 	__u32			max_link; /* max # of hard links */ | 
 | 	__u32			max_namelen; /* max name length */ | 
 | }; | 
 |  | 
 | struct nfs4_change_info { | 
 | 	u32			atomic; | 
 | 	u64			before; | 
 | 	u64			after; | 
 | }; | 
 |  | 
 | struct nfs_seqid; | 
 | /* | 
 |  * Arguments to the open call. | 
 |  */ | 
 | struct nfs_openargs { | 
 | 	const struct nfs_fh *	fh; | 
 | 	struct nfs_seqid *	seqid; | 
 | 	int			open_flags; | 
 | 	__u64                   clientid; | 
 | 	__u64                   id; | 
 | 	union { | 
 | 		struct iattr *  attrs;    /* UNCHECKED, GUARDED */ | 
 | 		nfs4_verifier   verifier; /* EXCLUSIVE */ | 
 | 		nfs4_stateid	delegation;		/* CLAIM_DELEGATE_CUR */ | 
 | 		int		delegation_type;	/* CLAIM_PREVIOUS */ | 
 | 	} u; | 
 | 	const struct qstr *	name; | 
 | 	const struct nfs_server *server;	 /* Needed for ID mapping */ | 
 | 	const u32 *		bitmask; | 
 | 	__u32			claim; | 
 | }; | 
 |  | 
 | struct nfs_openres { | 
 | 	nfs4_stateid            stateid; | 
 | 	struct nfs_fh           fh; | 
 | 	struct nfs4_change_info	cinfo; | 
 | 	__u32                   rflags; | 
 | 	struct nfs_fattr *      f_attr; | 
 | 	struct nfs_fattr *      dir_attr; | 
 | 	const struct nfs_server *server; | 
 | 	int			delegation_type; | 
 | 	nfs4_stateid		delegation; | 
 | 	__u32			do_recall; | 
 | 	__u64			maxsize; | 
 | 	__u32			attrset[NFS4_BITMAP_SIZE]; | 
 | }; | 
 |  | 
 | /* | 
 |  * Arguments to the open_confirm call. | 
 |  */ | 
 | struct nfs_open_confirmargs { | 
 | 	const struct nfs_fh *	fh; | 
 | 	nfs4_stateid *		stateid; | 
 | 	struct nfs_seqid *	seqid; | 
 | }; | 
 |  | 
 | struct nfs_open_confirmres { | 
 | 	nfs4_stateid            stateid; | 
 | }; | 
 |  | 
 | /* | 
 |  * Arguments to the close call. | 
 |  */ | 
 | struct nfs_closeargs { | 
 | 	struct nfs_fh *         fh; | 
 | 	nfs4_stateid *		stateid; | 
 | 	struct nfs_seqid *	seqid; | 
 | 	int			open_flags; | 
 | 	const u32 *		bitmask; | 
 | }; | 
 |  | 
 | struct nfs_closeres { | 
 | 	nfs4_stateid            stateid; | 
 | 	struct nfs_fattr *	fattr; | 
 | 	const struct nfs_server *server; | 
 | }; | 
 | /* | 
 |  *  * Arguments to the lock,lockt, and locku call. | 
 |  *   */ | 
 | struct nfs_lowner { | 
 | 	__u64			clientid; | 
 | 	__u64			id; | 
 | }; | 
 |  | 
 | struct nfs_lock_args { | 
 | 	struct nfs_fh *		fh; | 
 | 	struct file_lock *	fl; | 
 | 	struct nfs_seqid *	lock_seqid; | 
 | 	nfs4_stateid *		lock_stateid; | 
 | 	struct nfs_seqid *	open_seqid; | 
 | 	nfs4_stateid *		open_stateid; | 
 | 	struct nfs_lowner	lock_owner; | 
 | 	unsigned char		block : 1; | 
 | 	unsigned char		reclaim : 1; | 
 | 	unsigned char		new_lock_owner : 1; | 
 | }; | 
 |  | 
 | struct nfs_lock_res { | 
 | 	nfs4_stateid			stateid; | 
 | }; | 
 |  | 
 | struct nfs_locku_args { | 
 | 	struct nfs_fh *		fh; | 
 | 	struct file_lock *	fl; | 
 | 	struct nfs_seqid *	seqid; | 
 | 	nfs4_stateid *		stateid; | 
 | }; | 
 |  | 
 | struct nfs_locku_res { | 
 | 	nfs4_stateid			stateid; | 
 | }; | 
 |  | 
 | struct nfs_lockt_args { | 
 | 	struct nfs_fh *		fh; | 
 | 	struct file_lock *	fl; | 
 | 	struct nfs_lowner	lock_owner; | 
 | }; | 
 |  | 
 | struct nfs_lockt_res { | 
 | 	struct file_lock *	denied; /* LOCK, LOCKT failed */ | 
 | }; | 
 |  | 
 | struct nfs4_delegreturnargs { | 
 | 	const struct nfs_fh *fhandle; | 
 | 	const nfs4_stateid *stateid; | 
 | 	const u32 * bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_delegreturnres { | 
 | 	struct nfs_fattr * fattr; | 
 | 	const struct nfs_server *server; | 
 | }; | 
 |  | 
 | /* | 
 |  * Arguments to the read call. | 
 |  */ | 
 | struct nfs_readargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	struct nfs_open_context *context; | 
 | 	__u64			offset; | 
 | 	__u32			count; | 
 | 	unsigned int		pgbase; | 
 | 	struct page **		pages; | 
 | }; | 
 |  | 
 | struct nfs_readres { | 
 | 	struct nfs_fattr *	fattr; | 
 | 	__u32			count; | 
 | 	int                     eof; | 
 | }; | 
 |  | 
 | /* | 
 |  * Arguments to the write call. | 
 |  */ | 
 | struct nfs_writeargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	struct nfs_open_context *context; | 
 | 	__u64			offset; | 
 | 	__u32			count; | 
 | 	enum nfs3_stable_how	stable; | 
 | 	unsigned int		pgbase; | 
 | 	struct page **		pages; | 
 | 	const u32 *		bitmask; | 
 | }; | 
 |  | 
 | struct nfs_writeverf { | 
 | 	enum nfs3_stable_how	committed; | 
 | 	__be32			verifier[2]; | 
 | }; | 
 |  | 
 | struct nfs_writeres { | 
 | 	struct nfs_fattr *	fattr; | 
 | 	struct nfs_writeverf *	verf; | 
 | 	__u32			count; | 
 | 	const struct nfs_server *server; | 
 | }; | 
 |  | 
 | /* | 
 |  * Common arguments to the unlink call | 
 |  */ | 
 | struct nfs_removeargs { | 
 | 	const struct nfs_fh	*fh; | 
 | 	struct qstr		name; | 
 | 	const u32 *		bitmask; | 
 | }; | 
 |  | 
 | struct nfs_removeres { | 
 | 	const struct nfs_server *server; | 
 | 	struct nfs4_change_info	cinfo; | 
 | 	struct nfs_fattr	dir_attr; | 
 | }; | 
 |  | 
 | /* | 
 |  * Argument struct for decode_entry function | 
 |  */ | 
 | struct nfs_entry { | 
 | 	__u64			ino; | 
 | 	__u64			cookie, | 
 | 				prev_cookie; | 
 | 	const char *		name; | 
 | 	unsigned int		len; | 
 | 	int			eof; | 
 | 	struct nfs_fh *		fh; | 
 | 	struct nfs_fattr *	fattr; | 
 | }; | 
 |  | 
 | /* | 
 |  * The following types are for NFSv2 only. | 
 |  */ | 
 | struct nfs_sattrargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	struct iattr *		sattr; | 
 | }; | 
 |  | 
 | struct nfs_diropargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	const char *		name; | 
 | 	unsigned int		len; | 
 | }; | 
 |  | 
 | struct nfs_createargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	const char *		name; | 
 | 	unsigned int		len; | 
 | 	struct iattr *		sattr; | 
 | }; | 
 |  | 
 | struct nfs_renameargs { | 
 | 	struct nfs_fh *		fromfh; | 
 | 	const char *		fromname; | 
 | 	unsigned int		fromlen; | 
 | 	struct nfs_fh *		tofh; | 
 | 	const char *		toname; | 
 | 	unsigned int		tolen; | 
 | }; | 
 |  | 
 | struct nfs_setattrargs { | 
 | 	struct nfs_fh *                 fh; | 
 | 	nfs4_stateid                    stateid; | 
 | 	struct iattr *                  iap; | 
 | 	const struct nfs_server *	server; /* Needed for name mapping */ | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs_setaclargs { | 
 | 	struct nfs_fh *			fh; | 
 | 	size_t				acl_len; | 
 | 	unsigned int			acl_pgbase; | 
 | 	struct page **			acl_pages; | 
 | }; | 
 |  | 
 | struct nfs_getaclargs { | 
 | 	struct nfs_fh *			fh; | 
 | 	size_t				acl_len; | 
 | 	unsigned int			acl_pgbase; | 
 | 	struct page **			acl_pages; | 
 | }; | 
 |  | 
 | struct nfs_setattrres { | 
 | 	struct nfs_fattr *              fattr; | 
 | 	const struct nfs_server *	server; | 
 | }; | 
 |  | 
 | struct nfs_linkargs { | 
 | 	struct nfs_fh *		fromfh; | 
 | 	struct nfs_fh *		tofh; | 
 | 	const char *		toname; | 
 | 	unsigned int		tolen; | 
 | }; | 
 |  | 
 | struct nfs_symlinkargs { | 
 | 	struct nfs_fh *		fromfh; | 
 | 	const char *		fromname; | 
 | 	unsigned int		fromlen; | 
 | 	struct page **		pages; | 
 | 	unsigned int		pathlen; | 
 | 	struct iattr *		sattr; | 
 | }; | 
 |  | 
 | struct nfs_readdirargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	__u32			cookie; | 
 | 	unsigned int		count; | 
 | 	struct page **		pages; | 
 | }; | 
 |  | 
 | struct nfs3_getaclargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	int			mask; | 
 | 	struct page **		pages; | 
 | }; | 
 |  | 
 | struct nfs3_setaclargs { | 
 | 	struct inode *		inode; | 
 | 	int			mask; | 
 | 	struct posix_acl *	acl_access; | 
 | 	struct posix_acl *	acl_default; | 
 | 	struct page **		pages; | 
 | }; | 
 |  | 
 | struct nfs_diropok { | 
 | 	struct nfs_fh *		fh; | 
 | 	struct nfs_fattr *	fattr; | 
 | }; | 
 |  | 
 | struct nfs_readlinkargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	unsigned int		pgbase; | 
 | 	unsigned int		pglen; | 
 | 	struct page **		pages; | 
 | }; | 
 |  | 
 | struct nfs3_sattrargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	struct iattr *		sattr; | 
 | 	unsigned int		guard; | 
 | 	struct timespec		guardtime; | 
 | }; | 
 |  | 
 | struct nfs3_diropargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	const char *		name; | 
 | 	unsigned int		len; | 
 | }; | 
 |  | 
 | struct nfs3_accessargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	__u32			access; | 
 | }; | 
 |  | 
 | struct nfs3_createargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	const char *		name; | 
 | 	unsigned int		len; | 
 | 	struct iattr *		sattr; | 
 | 	enum nfs3_createmode	createmode; | 
 | 	__be32			verifier[2]; | 
 | }; | 
 |  | 
 | struct nfs3_mkdirargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	const char *		name; | 
 | 	unsigned int		len; | 
 | 	struct iattr *		sattr; | 
 | }; | 
 |  | 
 | struct nfs3_symlinkargs { | 
 | 	struct nfs_fh *		fromfh; | 
 | 	const char *		fromname; | 
 | 	unsigned int		fromlen; | 
 | 	struct page **		pages; | 
 | 	unsigned int		pathlen; | 
 | 	struct iattr *		sattr; | 
 | }; | 
 |  | 
 | struct nfs3_mknodargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	const char *		name; | 
 | 	unsigned int		len; | 
 | 	enum nfs3_ftype		type; | 
 | 	struct iattr *		sattr; | 
 | 	dev_t			rdev; | 
 | }; | 
 |  | 
 | struct nfs3_renameargs { | 
 | 	struct nfs_fh *		fromfh; | 
 | 	const char *		fromname; | 
 | 	unsigned int		fromlen; | 
 | 	struct nfs_fh *		tofh; | 
 | 	const char *		toname; | 
 | 	unsigned int		tolen; | 
 | }; | 
 |  | 
 | struct nfs3_linkargs { | 
 | 	struct nfs_fh *		fromfh; | 
 | 	struct nfs_fh *		tofh; | 
 | 	const char *		toname; | 
 | 	unsigned int		tolen; | 
 | }; | 
 |  | 
 | struct nfs3_readdirargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	__u64			cookie; | 
 | 	__be32			verf[2]; | 
 | 	int			plus; | 
 | 	unsigned int            count; | 
 | 	struct page **		pages; | 
 | }; | 
 |  | 
 | struct nfs3_diropres { | 
 | 	struct nfs_fattr *	dir_attr; | 
 | 	struct nfs_fh *		fh; | 
 | 	struct nfs_fattr *	fattr; | 
 | }; | 
 |  | 
 | struct nfs3_accessres { | 
 | 	struct nfs_fattr *	fattr; | 
 | 	__u32			access; | 
 | }; | 
 |  | 
 | struct nfs3_readlinkargs { | 
 | 	struct nfs_fh *		fh; | 
 | 	unsigned int		pgbase; | 
 | 	unsigned int		pglen; | 
 | 	struct page **		pages; | 
 | }; | 
 |  | 
 | struct nfs3_renameres { | 
 | 	struct nfs_fattr *	fromattr; | 
 | 	struct nfs_fattr *	toattr; | 
 | }; | 
 |  | 
 | struct nfs3_linkres { | 
 | 	struct nfs_fattr *	dir_attr; | 
 | 	struct nfs_fattr *	fattr; | 
 | }; | 
 |  | 
 | struct nfs3_readdirres { | 
 | 	struct nfs_fattr *	dir_attr; | 
 | 	__be32 *		verf; | 
 | 	int			plus; | 
 | }; | 
 |  | 
 | struct nfs3_getaclres { | 
 | 	struct nfs_fattr *	fattr; | 
 | 	int			mask; | 
 | 	unsigned int		acl_access_count; | 
 | 	unsigned int		acl_default_count; | 
 | 	struct posix_acl *	acl_access; | 
 | 	struct posix_acl *	acl_default; | 
 | }; | 
 |  | 
 | #ifdef CONFIG_NFS_V4 | 
 |  | 
 | typedef u64 clientid4; | 
 |  | 
 | struct nfs4_accessargs { | 
 | 	const struct nfs_fh *		fh; | 
 | 	const u32 *			bitmask; | 
 | 	u32				access; | 
 | }; | 
 |  | 
 | struct nfs4_accessres { | 
 | 	const struct nfs_server *	server; | 
 | 	struct nfs_fattr *		fattr; | 
 | 	u32				supported; | 
 | 	u32				access; | 
 | }; | 
 |  | 
 | struct nfs4_create_arg { | 
 | 	u32				ftype; | 
 | 	union { | 
 | 		struct { | 
 | 			struct page **	pages; | 
 | 			unsigned int	len; | 
 | 		} symlink;   /* NF4LNK */ | 
 | 		struct { | 
 | 			u32		specdata1; | 
 | 			u32		specdata2; | 
 | 		} device;    /* NF4BLK, NF4CHR */ | 
 | 	} u; | 
 | 	const struct qstr *		name; | 
 | 	const struct nfs_server *	server; | 
 | 	const struct iattr *		attrs; | 
 | 	const struct nfs_fh *		dir_fh; | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_create_res { | 
 | 	const struct nfs_server *	server; | 
 | 	struct nfs_fh *			fh; | 
 | 	struct nfs_fattr *		fattr; | 
 | 	struct nfs4_change_info		dir_cinfo; | 
 | 	struct nfs_fattr *		dir_fattr; | 
 | }; | 
 |  | 
 | struct nfs4_fsinfo_arg { | 
 | 	const struct nfs_fh *		fh; | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_getattr_arg { | 
 | 	const struct nfs_fh *		fh; | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_getattr_res { | 
 | 	const struct nfs_server *	server; | 
 | 	struct nfs_fattr *		fattr; | 
 | }; | 
 |  | 
 | struct nfs4_link_arg { | 
 | 	const struct nfs_fh *		fh; | 
 | 	const struct nfs_fh *		dir_fh; | 
 | 	const struct qstr *		name; | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_link_res { | 
 | 	const struct nfs_server *	server; | 
 | 	struct nfs_fattr *		fattr; | 
 | 	struct nfs4_change_info		cinfo; | 
 | 	struct nfs_fattr *		dir_attr; | 
 | }; | 
 |  | 
 |  | 
 | struct nfs4_lookup_arg { | 
 | 	const struct nfs_fh *		dir_fh; | 
 | 	const struct qstr *		name; | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_lookup_res { | 
 | 	const struct nfs_server *	server; | 
 | 	struct nfs_fattr *		fattr; | 
 | 	struct nfs_fh *			fh; | 
 | }; | 
 |  | 
 | struct nfs4_lookup_root_arg { | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_pathconf_arg { | 
 | 	const struct nfs_fh *		fh; | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_readdir_arg { | 
 | 	const struct nfs_fh *		fh; | 
 | 	u64				cookie; | 
 | 	nfs4_verifier			verifier; | 
 | 	u32				count; | 
 | 	struct page **			pages;	/* zero-copy data */ | 
 | 	unsigned int			pgbase;	/* zero-copy data */ | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_readdir_res { | 
 | 	nfs4_verifier			verifier; | 
 | 	unsigned int			pgbase; | 
 | }; | 
 |  | 
 | struct nfs4_readlink { | 
 | 	const struct nfs_fh *		fh; | 
 | 	unsigned int			pgbase; | 
 | 	unsigned int			pglen;   /* zero-copy data */ | 
 | 	struct page **			pages;   /* zero-copy data */ | 
 | }; | 
 |  | 
 | struct nfs4_rename_arg { | 
 | 	const struct nfs_fh *		old_dir; | 
 | 	const struct nfs_fh *		new_dir; | 
 | 	const struct qstr *		old_name; | 
 | 	const struct qstr *		new_name; | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_rename_res { | 
 | 	const struct nfs_server *	server; | 
 | 	struct nfs4_change_info		old_cinfo; | 
 | 	struct nfs_fattr *		old_fattr; | 
 | 	struct nfs4_change_info		new_cinfo; | 
 | 	struct nfs_fattr *		new_fattr; | 
 | }; | 
 |  | 
 | #define NFS4_SETCLIENTID_NAMELEN	(56) | 
 | struct nfs4_setclientid { | 
 | 	const nfs4_verifier *		sc_verifier; | 
 | 	unsigned int			sc_name_len; | 
 | 	char				sc_name[NFS4_SETCLIENTID_NAMELEN]; | 
 | 	u32				sc_prog; | 
 | 	unsigned int			sc_netid_len; | 
 | 	char				sc_netid[RPCBIND_MAXNETIDLEN]; | 
 | 	unsigned int			sc_uaddr_len; | 
 | 	char				sc_uaddr[RPCBIND_MAXUADDRLEN]; | 
 | 	u32				sc_cb_ident; | 
 | }; | 
 |  | 
 | struct nfs4_statfs_arg { | 
 | 	const struct nfs_fh *		fh; | 
 | 	const u32 *			bitmask; | 
 | }; | 
 |  | 
 | struct nfs4_server_caps_res { | 
 | 	u32				attr_bitmask[2]; | 
 | 	u32				acl_bitmask; | 
 | 	u32				has_links; | 
 | 	u32				has_symlinks; | 
 | }; | 
 |  | 
 | struct nfs4_string { | 
 | 	unsigned int len; | 
 | 	char *data; | 
 | }; | 
 |  | 
 | #define NFS4_PATHNAME_MAXCOMPONENTS 512 | 
 | struct nfs4_pathname { | 
 | 	unsigned int ncomponents; | 
 | 	struct nfs4_string components[NFS4_PATHNAME_MAXCOMPONENTS]; | 
 | }; | 
 |  | 
 | #define NFS4_FS_LOCATION_MAXSERVERS 10 | 
 | struct nfs4_fs_location { | 
 | 	unsigned int nservers; | 
 | 	struct nfs4_string servers[NFS4_FS_LOCATION_MAXSERVERS]; | 
 | 	struct nfs4_pathname rootpath; | 
 | }; | 
 |  | 
 | #define NFS4_FS_LOCATIONS_MAXENTRIES 10 | 
 | struct nfs4_fs_locations { | 
 | 	struct nfs_fattr fattr; | 
 | 	const struct nfs_server *server; | 
 | 	struct nfs4_pathname fs_path; | 
 | 	int nlocations; | 
 | 	struct nfs4_fs_location locations[NFS4_FS_LOCATIONS_MAXENTRIES]; | 
 | }; | 
 |  | 
 | struct nfs4_fs_locations_arg { | 
 | 	const struct nfs_fh *dir_fh; | 
 | 	const struct qstr *name; | 
 | 	struct page *page; | 
 | 	const u32 *bitmask; | 
 | }; | 
 |  | 
 | #endif /* CONFIG_NFS_V4 */ | 
 |  | 
 | struct nfs_page; | 
 |  | 
 | #define NFS_PAGEVEC_SIZE	(8U) | 
 |  | 
 | struct nfs_read_data { | 
 | 	int			flags; | 
 | 	struct rpc_task		task; | 
 | 	struct inode		*inode; | 
 | 	struct rpc_cred		*cred; | 
 | 	struct nfs_fattr	fattr;	/* fattr storage */ | 
 | 	struct list_head	pages;	/* Coalesced read requests */ | 
 | 	struct nfs_page		*req;	/* multi ops per nfs_page */ | 
 | 	struct page		**pagevec; | 
 | 	unsigned int		npages;	/* Max length of pagevec */ | 
 | 	struct nfs_readargs args; | 
 | 	struct nfs_readres  res; | 
 | #ifdef CONFIG_NFS_V4 | 
 | 	unsigned long		timestamp;	/* For lease renewal */ | 
 | #endif | 
 | 	struct page		*page_array[NFS_PAGEVEC_SIZE]; | 
 | }; | 
 |  | 
 | struct nfs_write_data { | 
 | 	int			flags; | 
 | 	struct rpc_task		task; | 
 | 	struct inode		*inode; | 
 | 	struct rpc_cred		*cred; | 
 | 	struct nfs_fattr	fattr; | 
 | 	struct nfs_writeverf	verf; | 
 | 	struct list_head	pages;		/* Coalesced requests we wish to flush */ | 
 | 	struct nfs_page		*req;		/* multi ops per nfs_page */ | 
 | 	struct page		**pagevec; | 
 | 	unsigned int		npages;		/* Max length of pagevec */ | 
 | 	struct nfs_writeargs	args;		/* argument struct */ | 
 | 	struct nfs_writeres	res;		/* result struct */ | 
 | #ifdef CONFIG_NFS_V4 | 
 | 	unsigned long		timestamp;	/* For lease renewal */ | 
 | #endif | 
 | 	struct page		*page_array[NFS_PAGEVEC_SIZE]; | 
 | }; | 
 |  | 
 | struct nfs_access_entry; | 
 |  | 
 | /* | 
 |  * RPC procedure vector for NFSv2/NFSv3 demuxing | 
 |  */ | 
 | struct nfs_rpc_ops { | 
 | 	u32	version;		/* Protocol version */ | 
 | 	struct dentry_operations *dentry_ops; | 
 | 	const struct inode_operations *dir_inode_ops; | 
 | 	const struct inode_operations *file_inode_ops; | 
 |  | 
 | 	int	(*getroot) (struct nfs_server *, struct nfs_fh *, | 
 | 			    struct nfs_fsinfo *); | 
 | 	int	(*lookupfh)(struct nfs_server *, struct nfs_fh *, | 
 | 			    struct qstr *, struct nfs_fh *, | 
 | 			    struct nfs_fattr *); | 
 | 	int	(*getattr) (struct nfs_server *, struct nfs_fh *, | 
 | 			    struct nfs_fattr *); | 
 | 	int	(*setattr) (struct dentry *, struct nfs_fattr *, | 
 | 			    struct iattr *); | 
 | 	int	(*lookup)  (struct inode *, struct qstr *, | 
 | 			    struct nfs_fh *, struct nfs_fattr *); | 
 | 	int	(*access)  (struct inode *, struct nfs_access_entry *); | 
 | 	int	(*readlink)(struct inode *, struct page *, unsigned int, | 
 | 			    unsigned int); | 
 | 	int	(*create)  (struct inode *, struct dentry *, | 
 | 			    struct iattr *, int, struct nameidata *); | 
 | 	int	(*remove)  (struct inode *, struct qstr *); | 
 | 	void	(*unlink_setup)  (struct rpc_message *, struct inode *dir); | 
 | 	int	(*unlink_done) (struct rpc_task *, struct inode *); | 
 | 	int	(*rename)  (struct inode *, struct qstr *, | 
 | 			    struct inode *, struct qstr *); | 
 | 	int	(*link)    (struct inode *, struct inode *, struct qstr *); | 
 | 	int	(*symlink) (struct inode *, struct dentry *, struct page *, | 
 | 			    unsigned int, struct iattr *); | 
 | 	int	(*mkdir)   (struct inode *, struct dentry *, struct iattr *); | 
 | 	int	(*rmdir)   (struct inode *, struct qstr *); | 
 | 	int	(*readdir) (struct dentry *, struct rpc_cred *, | 
 | 			    u64, struct page *, unsigned int, int); | 
 | 	int	(*mknod)   (struct inode *, struct dentry *, struct iattr *, | 
 | 			    dev_t); | 
 | 	int	(*statfs)  (struct nfs_server *, struct nfs_fh *, | 
 | 			    struct nfs_fsstat *); | 
 | 	int	(*fsinfo)  (struct nfs_server *, struct nfs_fh *, | 
 | 			    struct nfs_fsinfo *); | 
 | 	int	(*pathconf) (struct nfs_server *, struct nfs_fh *, | 
 | 			     struct nfs_pathconf *); | 
 | 	int	(*set_capabilities)(struct nfs_server *, struct nfs_fh *); | 
 | 	__be32 *(*decode_dirent)(__be32 *, struct nfs_entry *, int plus); | 
 | 	void	(*read_setup)   (struct nfs_read_data *, struct rpc_message *); | 
 | 	int	(*read_done)  (struct rpc_task *, struct nfs_read_data *); | 
 | 	void	(*write_setup)  (struct nfs_write_data *, struct rpc_message *); | 
 | 	int	(*write_done)  (struct rpc_task *, struct nfs_write_data *); | 
 | 	void	(*commit_setup) (struct nfs_write_data *, struct rpc_message *); | 
 | 	int	(*commit_done) (struct rpc_task *, struct nfs_write_data *); | 
 | 	int	(*file_open)   (struct inode *, struct file *); | 
 | 	int	(*file_release) (struct inode *, struct file *); | 
 | 	int	(*lock)(struct file *, int, struct file_lock *); | 
 | 	void	(*clear_acl_cache)(struct inode *); | 
 | }; | 
 |  | 
 | /* | 
 |  * 	NFS_CALL(getattr, inode, (fattr)); | 
 |  * into | 
 |  *	NFS_PROTO(inode)->getattr(fattr); | 
 |  */ | 
 | #define NFS_CALL(op, inode, args)	NFS_PROTO(inode)->op args | 
 |  | 
 | /* | 
 |  * Function vectors etc. for the NFS client | 
 |  */ | 
 | extern const struct nfs_rpc_ops	nfs_v2_clientops; | 
 | extern const struct nfs_rpc_ops	nfs_v3_clientops; | 
 | extern const struct nfs_rpc_ops	nfs_v4_clientops; | 
 | extern struct rpc_version	nfs_version2; | 
 | extern struct rpc_version	nfs_version3; | 
 | extern struct rpc_version	nfs_version4; | 
 |  | 
 | extern struct rpc_version	nfsacl_version3; | 
 | extern struct rpc_program	nfsacl_program; | 
 |  | 
 | #endif |