fs/xfs/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_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 #ifdef DEBUG
  48 # define XFS_DBG_STRING         "debug"
  49 #else
  50 # define XFS_DBG_STRING         "no debug"
  51 #endif
  52
  53 #define XFS_VERSION_STRING      "SGI XFS"
  54 #define XFS_BUILD_OPTIONS       XFS_ACL_STRING \
  55                                 XFS_SECURITY_STRING \
  56                                 XFS_REALTIME_STRING \
  57                                 XFS_DBG_STRING /* DBG must be last */
  58
  59 struct xfs_inode;
  60 struct xfs_mount;
  61 struct xfs_buftarg;
  62 struct block_device;
  63
  64 extern void xfs_quiesce_attr(struct xfs_mount *mp);
  65 extern void xfs_flush_inodes(struct xfs_mount *mp);
  66 extern void xfs_blkdev_issue_flush(struct xfs_buftarg *);
  67 extern xfs_agnumber_t xfs_set_inode_alloc(struct xfs_mount *,
  68                                            xfs_agnumber_t agcount);
  69
  70 extern const struct export_operations xfs_export_operations;
  71 extern const struct xattr_handler *xfs_xattr_handlers[];
  72 extern const struct quotactl_ops xfs_quotactl_operations;
  73
  74 extern void xfs_reinit_percpu_counters(struct xfs_mount *mp);
  75
  76 extern struct workqueue_struct *xfs_discard_wq;
  77
  78 #define XFS_M(sb)               ((struct xfs_mount *)((sb)->s_fs_info))
  79
  80 #endif  /* __XFS_SUPER_H__ */