LXR linux/fs/xfs/xfs

   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
  27struct xfs_inode;
  28struct xfs_mount;
  29
  30extern void xfs_refcache_insert(struct xfs_inode *);
  31extern void xfs_refcache_purge_ip(struct xfs_inode *);
  32extern void xfs_refcache_purge_mp(struct xfs_mount *);
  33extern void xfs_refcache_purge_some(struct xfs_mount *);
  34extern void xfs_refcache_resize(int);
  35extern void xfs_refcache_destroy(void);
  36
  37extern 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__ */
  53