fs/xfs/linux-2.6/xfs_super.h

   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_DMAPI
  24 # define vfs_insertdmapi(vfs)   vfs_insertops(vfsp, &xfs_dmops)
  25 # define vfs_initdmapi()        dmapi_init()
  26 # define vfs_exitdmapi()        dmapi_uninit()
  27 #else
  28 # define vfs_insertdmapi(vfs)   do { } while (0)
  29 # define vfs_initdmapi()        do { } while (0)
  30 # define vfs_exitdmapi()        do { } while (0)
  31 #endif
  32
  33 #ifdef CONFIG_XFS_QUOTA
  34 # define vfs_insertquota(vfs)   vfs_insertops(vfsp, &xfs_qmops)
  35 extern void xfs_qm_init(void);
  36 extern void xfs_qm_exit(void);
  37 # define vfs_initquota()        xfs_qm_init()
  38 # define vfs_exitquota()        xfs_qm_exit()
  39 #else
  40 # define vfs_insertquota(vfs)   do { } while (0)
  41 # define vfs_initquota()        do { } while (0)
  42 # define vfs_exitquota()        do { } while (0)
  43 #endif
  44
  45 #ifdef CONFIG_XFS_POSIX_ACL
  46 # define XFS_ACL_STRING         "ACLs, "
  47 # define set_posix_acl_flag(sb) ((sb)->s_flags |= MS_POSIXACL)
  48 #else
  49 # define XFS_ACL_STRING
  50 # define set_posix_acl_flag(sb) do { } while (0)
  51 #endif
  52
  53 #ifdef CONFIG_XFS_SECURITY
  54 # define XFS_SECURITY_STRING    "security attributes, "
  55 # define ENOSECURITY            0
  56 #else
  57 # define XFS_SECURITY_STRING
  58 # define ENOSECURITY            EOPNOTSUPP
  59 #endif
  60
  61 #ifdef CONFIG_XFS_RT
  62 # define XFS_REALTIME_STRING    "realtime, "
  63 #else
  64 # define XFS_REALTIME_STRING
  65 #endif
  66
  67 #if XFS_BIG_BLKNOS
  68 # if XFS_BIG_INUMS
  69 #  define XFS_BIGFS_STRING      "large block/inode numbers, "
  70 # else
  71 #  define XFS_BIGFS_STRING      "large block numbers, "
  72 # endif
  73 #else
  74 # define XFS_BIGFS_STRING
  75 #endif
  76
  77 #ifdef CONFIG_XFS_TRACE
  78 # define XFS_TRACE_STRING       "tracing, "
  79 #else
  80 # define XFS_TRACE_STRING
  81 #endif
  82
  83 #ifdef CONFIG_XFS_DMAPI
  84 # define XFS_DMAPI_STRING       "dmapi support, "
  85 #else
  86 # define XFS_DMAPI_STRING
  87 #endif
  88
  89 #ifdef DEBUG
  90 # define XFS_DBG_STRING         "debug"
  91 #else
  92 # define XFS_DBG_STRING         "no debug"
  93 #endif
  94
  95 #define XFS_BUILD_OPTIONS       XFS_ACL_STRING \
  96                                 XFS_SECURITY_STRING \
  97                                 XFS_REALTIME_STRING \
  98                                 XFS_BIGFS_STRING \
  99                                 XFS_TRACE_STRING \
 100                                 XFS_DMAPI_STRING \
 101                                 XFS_DBG_STRING /* DBG must be last */
 102
 103 struct xfs_inode;
 104 struct xfs_mount;
 105 struct xfs_buftarg;
 106 struct block_device;
 107
 108 extern __uint64_t xfs_max_file_offset(unsigned int);
 109
 110 extern void xfs_initialize_vnode(struct xfs_mount *mp, bhv_vnode_t *vp,
 111                 struct xfs_inode *ip);
 112
 113 extern void xfs_flush_inode(struct xfs_inode *);
 114 extern void xfs_flush_device(struct xfs_inode *);
 115
 116 extern int  xfs_blkdev_get(struct xfs_mount *, const char *,
 117                                 struct block_device **);
 118 extern void xfs_blkdev_put(struct block_device *);
 119 extern void xfs_blkdev_issue_flush(struct xfs_buftarg *);
 120
 121 extern const struct export_operations xfs_export_operations;
 122
 123 #define XFS_M(sb)               ((struct xfs_mount *)((sb)->s_fs_info))
 124
 125 #endif  /* __XFS_SUPER_H__ */