fs/xfs/linux-2.6/xfs_sync.h

   1 /*
   2  * Copyright (c) 2000-2006 Silicon Graphics, Inc.
   3  * All Rights Reserved.
   4  *
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public License as
   7  * published by the Free Software Foundation.
   8  *
   9  * This program is distributed in the hope that it would be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with this program; if not, write the Free Software Foundation,
  16  * Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  17  */
  18 #ifndef XFS_SYNC_H
  19 #define XFS_SYNC_H 1
  20
  21 struct xfs_mount;
  22 struct xfs_perag;
  23
  24 typedef struct xfs_sync_work {
  25         struct list_head        w_list;
  26         struct xfs_mount        *w_mount;
  27         void                    *w_data;        /* syncer routine argument */
  28         void                    (*w_syncer)(struct xfs_mount *, void *);
  29         struct completion       *w_completion;
  30 } xfs_sync_work_t;
  31
  32 #define SYNC_WAIT               0x0001  /* wait for i/o to complete */
  33 #define SYNC_TRYLOCK            0x0002  /* only try to lock inodes */
  34
  35 extern struct workqueue_struct  *xfs_syncd_wq;  /* sync workqueue */
  36
  37 int xfs_syncd_init(struct xfs_mount *mp);
  38 void xfs_syncd_stop(struct xfs_mount *mp);
  39
  40 int xfs_quiesce_data(struct xfs_mount *mp);
  41 void xfs_quiesce_attr(struct xfs_mount *mp);
  42
  43 void xfs_flush_inodes(struct xfs_inode *ip);
  44
  45 int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
  46
  47 void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
  48 void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip);
  49 void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
  50                                 struct xfs_inode *ip);
  51
  52 int xfs_sync_inode_grab(struct xfs_inode *ip);
  53 int xfs_inode_ag_iterator(struct xfs_mount *mp,
  54         int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags),
  55         int flags);
  56
  57 void xfs_inode_shrinker_register(struct xfs_mount *mp);
  58 void xfs_inode_shrinker_unregister(struct xfs_mount *mp);
  59
  60 #endif