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xfs_super.h
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1 /*
2  * Copyright (c) 2000-2005 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_SUPER_H__
19 #define __XFS_SUPER_H__
20 
21 #include <linux/exportfs.h>
22 
23 #ifdef CONFIG_XFS_QUOTA
24 extern int xfs_qm_init(void);
25 extern void xfs_qm_exit(void);
26 #else
27 # define xfs_qm_init() (0)
28 # define xfs_qm_exit() do { } while (0)
29 #endif
30 
31 #ifdef CONFIG_XFS_POSIX_ACL
32 # define XFS_ACL_STRING "ACLs, "
33 # define set_posix_acl_flag(sb) ((sb)->s_flags |= MS_POSIXACL)
34 #else
35 # define XFS_ACL_STRING
36 # define set_posix_acl_flag(sb) do { } while (0)
37 #endif
38 
39 #define XFS_SECURITY_STRING "security attributes, "
40 
41 #ifdef CONFIG_XFS_RT
42 # define XFS_REALTIME_STRING "realtime, "
43 #else
44 # define XFS_REALTIME_STRING
45 #endif
46 
47 #if XFS_BIG_BLKNOS
48 # if XFS_BIG_INUMS
49 # define XFS_BIGFS_STRING "large block/inode numbers, "
50 # else
51 # define XFS_BIGFS_STRING "large block numbers, "
52 # endif
53 #else
54 # define XFS_BIGFS_STRING
55 #endif
56 
57 #ifdef DEBUG
58 # define XFS_DBG_STRING "debug"
59 #else
60 # define XFS_DBG_STRING "no debug"
61 #endif
62 
63 #define XFS_VERSION_STRING "SGI XFS"
64 #define XFS_BUILD_OPTIONS XFS_ACL_STRING \
65  XFS_SECURITY_STRING \
66  XFS_REALTIME_STRING \
67  XFS_BIGFS_STRING \
68  XFS_DBG_STRING /* DBG must be last */
69 
70 struct xfs_inode;
71 struct xfs_mount;
72 struct xfs_buftarg;
73 struct block_device;
74 
75 extern __uint64_t xfs_max_file_offset(unsigned int);
76 
77 extern void xfs_blkdev_issue_flush(struct xfs_buftarg *);
78 extern xfs_agnumber_t xfs_set_inode32(struct xfs_mount *);
79 extern xfs_agnumber_t xfs_set_inode64(struct xfs_mount *);
80 
81 extern const struct export_operations xfs_export_operations;
82 extern const struct xattr_handler *xfs_xattr_handlers[];
83 extern const struct quotactl_ops xfs_quotactl_operations;
84 
85 #define XFS_M(sb) ((struct xfs_mount *)((sb)->s_fs_info))
86 
87 #endif /* __XFS_SUPER_H__ */