text: /*
   * Copyright (c) 2000-2006 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_SYNC_H
  #define XFS_SYNC_H 1
  
  struct xfs_mount;
  struct xfs_perag;
  
  typedef struct xfs_sync_work {
  	struct list_head	w_list;
  	struct xfs_mount	*w_mount;
  	void			*w_data;	/* syncer routine argument */
  	void			(*w_syncer)(struct xfs_mount *, void *);
  	struct completion	*w_completion;
  } xfs_sync_work_t;
  
  #define SYNC_WAIT		0x0001	/* wait for i/o to complete */
  #define SYNC_TRYLOCK		0x0002  /* only try to lock inodes */
  
  int xfs_syncd_init(struct xfs_mount *mp);
  void xfs_syncd_stop(struct xfs_mount *mp);
  
  int xfs_sync_attr(struct xfs_mount *mp, int flags);
  int xfs_sync_data(struct xfs_mount *mp, int flags);
  
  int xfs_quiesce_data(struct xfs_mount *mp);
  void xfs_quiesce_attr(struct xfs_mount *mp);
  
  void xfs_flush_inodes(struct xfs_inode *ip);
  
  int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
  
  void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
  void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip);
  void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
  				struct xfs_inode *ip);
  
  int xfs_sync_inode_valid(struct xfs_inode *ip, struct xfs_perag *pag);
  int xfs_inode_ag_iterator(struct xfs_mount *mp,
  	int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags),
  	int flags, int tag, int write_lock, int *nr_to_scan);
  
  void xfs_inode_shrinker_init(void);
  void xfs_inode_shrinker_destroy(void);
  void xfs_inode_shrinker_register(struct xfs_mount *mp);
  void xfs_inode_shrinker_unregister(struct xfs_mount *mp);
  
  #endif
  