fs/xfs/xfs_refcache.h

   1 /*
   2  * Copyright (c) 2000-2003,2005 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_REFCACHE_H__
  19 #define __XFS_REFCACHE_H__
  20
  21 #ifdef HAVE_REFCACHE
  22 /*
  23  * Maximum size (in inodes) for the NFS reference cache
  24  */
  25 #define XFS_REFCACHE_SIZE_MAX   512
  26
  27 struct xfs_inode;
  28 struct xfs_mount;
  29
  30 extern void xfs_refcache_insert(struct xfs_inode *);
  31 extern void xfs_refcache_purge_ip(struct xfs_inode *);
  32 extern void xfs_refcache_purge_mp(struct xfs_mount *);
  33 extern void xfs_refcache_purge_some(struct xfs_mount *);
  34 extern void xfs_refcache_resize(int);
  35 extern void xfs_refcache_destroy(void);
  36
  37 extern void xfs_refcache_iunlock(struct xfs_inode *, uint);
  38
  39 #else
  40
  41 #define xfs_refcache_insert(ip)         do { } while (0)
  42 #define xfs_refcache_purge_ip(ip)       do { } while (0)
  43 #define xfs_refcache_purge_mp(mp)       do { } while (0)
  44 #define xfs_refcache_purge_some(mp)     do { } while (0)
  45 #define xfs_refcache_resize(size)       do { } while (0)
  46 #define xfs_refcache_destroy()          do { } while (0)
  47
  48 #define xfs_refcache_iunlock(ip, flags) xfs_iunlock(ip, flags)
  49
  50 #endif
  51
  52 #endif  /* __XFS_REFCACHE_H__ */