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kernel/linux-imx6_3.14.28/fs/xfs/xfs_itable.h 3.23 KB
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  /*
   * Copyright (c) 2000-2001 Silicon Graphics, Inc.  All Rights Reserved.
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License as
   * published by the Free Software Foundation.
   *
   * This program is distributed in the hope that it would be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU General Public License for more details.
   *
   * You should have received a copy of the GNU General Public License
   * along with this program; if not, write the Free Software Foundation,
   * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
   */
  #ifndef __XFS_ITABLE_H__
  #define	__XFS_ITABLE_H__
  
  /*
   * xfs_bulkstat() is used to fill in xfs_bstat structures as well as dm_stat
   * structures (by the dmi library). This is a pointer to a formatter function
   * that will iget the inode and fill in the appropriate structure.
   * see xfs_bulkstat_one() and xfs_dm_bulkstat_one() in dmapi_xfs.c
   */
  typedef int (*bulkstat_one_pf)(struct xfs_mount	*mp,
  			       xfs_ino_t	ino,
  			       void		__user *buffer,
  			       int		ubsize,
  			       int		*ubused,
  			       int		*stat);
  
  /*
   * Values for stat return value.
   */
  #define BULKSTAT_RV_NOTHING	0
  #define BULKSTAT_RV_DIDONE	1
  #define BULKSTAT_RV_GIVEUP	2
  
  /*
   * Return stat information in bulk (by-inode) for the filesystem.
   */
  int					/* error status */
  xfs_bulkstat(
  	xfs_mount_t	*mp,		/* mount point for filesystem */
  	xfs_ino_t	*lastino,	/* last inode returned */
  	int		*count,		/* size of buffer/count returned */
  	bulkstat_one_pf formatter,	/* func that'd fill a single buf */
  	size_t		statstruct_size,/* sizeof struct that we're filling */
  	char		__user *ubuffer,/* buffer with inode stats */
  	int		*done);		/* 1 if there are more stats to get */
  
  int
  xfs_bulkstat_single(
  	xfs_mount_t		*mp,
  	xfs_ino_t		*lastinop,
  	char			__user *buffer,
  	int			*done);
  
  typedef int (*bulkstat_one_fmt_pf)(  /* used size in bytes or negative error */
  	void			__user *ubuffer, /* buffer to write to */
  	int			ubsize,		 /* remaining user buffer sz */
  	int			*ubused,	 /* bytes used by formatter */
  	const xfs_bstat_t	*buffer);        /* buffer to read from */
  
  int
  xfs_bulkstat_one_int(
  	xfs_mount_t		*mp,
  	xfs_ino_t		ino,
  	void			__user *buffer,
  	int			ubsize,
  	bulkstat_one_fmt_pf	formatter,
  	int			*ubused,
  	int			*stat);
  
  int
  xfs_bulkstat_one(
  	xfs_mount_t		*mp,
  	xfs_ino_t		ino,
  	void			__user *buffer,
  	int			ubsize,
  	int			*ubused,
  	int			*stat);
  
  typedef int (*inumbers_fmt_pf)(
  	void			__user *ubuffer, /* buffer to write to */
  	const xfs_inogrp_t	*buffer,	/* buffer to read from */
  	long			count,		/* # of elements to read */
  	long			*written);	/* # of bytes written */
  
  int
  xfs_inumbers_fmt(
  	void			__user *ubuffer, /* buffer to write to */
  	const xfs_inogrp_t	*buffer,	/* buffer to read from */
  	long			count,		/* # of elements to read */
  	long			*written);	/* # of bytes written */
  
  int					/* error status */
  xfs_inumbers(
  	xfs_mount_t		*mp,	/* mount point for filesystem */
  	xfs_ino_t		*last,	/* last inode returned */
  	int			*count,	/* size of buffer/count returned */
  	void			__user *buffer, /* buffer with inode info */
  	inumbers_fmt_pf		formatter);
  
  #endif	/* __XFS_ITABLE_H__ */