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Diffstat (limited to 'fs/xfs/xfs_refcache.h')
| -rw-r--r-- | fs/xfs/xfs_refcache.h | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/fs/xfs/xfs_refcache.h b/fs/xfs/xfs_refcache.h new file mode 100644 index 000000000000..cd8ddfd35d69 --- /dev/null +++ b/fs/xfs/xfs_refcache.h @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2000-2003 Silicon Graphics, Inc. All Rights Reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it would be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. + * + * Further, this software is distributed without any warranty that it is + * free of the rightful claim of any third person regarding infringement + * or the like. Any license provided herein, whether implied or + * otherwise, applies only to this software file. Patent licenses, if + * any, provided herein do not apply to combinations of this program with + * other software, or any other product whatsoever. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write the Free Software Foundation, Inc., 59 + * Temple Place - Suite 330, Boston MA 02111-1307, USA. + * + * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy, + * Mountain View, CA 94043, or: + * + * http://www.sgi.com + * + * For further information regarding this notice, see: + * + * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/ + */ +#ifndef __XFS_REFCACHE_H__ +#define __XFS_REFCACHE_H__ + +#ifdef HAVE_REFCACHE +/* + * Maximum size (in inodes) for the NFS reference cache + */ +#define XFS_REFCACHE_SIZE_MAX 512 + +struct xfs_inode; +struct xfs_mount; + +extern void xfs_refcache_insert(struct xfs_inode *); +extern void xfs_refcache_purge_ip(struct xfs_inode *); +extern void xfs_refcache_purge_mp(struct xfs_mount *); +extern void xfs_refcache_purge_some(struct xfs_mount *); +extern void xfs_refcache_resize(int); +extern void xfs_refcache_destroy(void); + +extern void xfs_refcache_iunlock(struct xfs_inode *, uint); + +#else + +#define xfs_refcache_insert(ip) do { } while (0) +#define xfs_refcache_purge_ip(ip) do { } while (0) +#define xfs_refcache_purge_mp(mp) do { } while (0) +#define xfs_refcache_purge_some(mp) do { } while (0) +#define xfs_refcache_resize(size) do { } while (0) +#define xfs_refcache_destroy() do { } while (0) + +#define xfs_refcache_iunlock(ip, flags) xfs_iunlock(ip, flags) + +#endif + +#endif /* __XFS_REFCACHE_H__ */ |