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xfs_sync.h
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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 #define SYNC_WAIT 0x0001 /* wait for i/o to complete */
25 #define SYNC_TRYLOCK 0x0002 /* only try to lock inodes */
26 
27 extern struct workqueue_struct *xfs_syncd_wq; /* sync workqueue */
28 
29 int xfs_syncd_init(struct xfs_mount *mp);
30 void xfs_syncd_stop(struct xfs_mount *mp);
31 
32 int xfs_quiesce_data(struct xfs_mount *mp);
33 void xfs_quiesce_attr(struct xfs_mount *mp);
34 
35 void xfs_flush_inodes(struct xfs_inode *ip);
36 
37 int xfs_reclaim_inodes(struct xfs_mount *mp, int mode);
38 int xfs_reclaim_inodes_count(struct xfs_mount *mp);
39 void xfs_reclaim_inodes_nr(struct xfs_mount *mp, int nr_to_scan);
40 
41 void xfs_inode_set_reclaim_tag(struct xfs_inode *ip);
42 void __xfs_inode_set_reclaim_tag(struct xfs_perag *pag, struct xfs_inode *ip);
43 void __xfs_inode_clear_reclaim_tag(struct xfs_mount *mp, struct xfs_perag *pag,
44  struct xfs_inode *ip);
45 
46 int xfs_sync_inode_grab(struct xfs_inode *ip);
47 int xfs_inode_ag_iterator(struct xfs_mount *mp,
48  int (*execute)(struct xfs_inode *ip, struct xfs_perag *pag, int flags),
49  int flags);
50 
51 #endif