[linux-2.6-block.git] / fs / ocfs2 / dcache.h

/* -*- mode: c; c-basic-offset: 8; -*-
 * vim: noexpandtab sw=8 ts=8 sts=0:
 *
 * dcache.h
 *
 * Function prototypes
 *
 * Copyright (C) 2002, 2004 Oracle.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 021110-1307, USA.
 */

#ifndef OCFS2_DCACHE_H
#define OCFS2_DCACHE_H

extern struct dentry_operations ocfs2_dentry_ops;

struct ocfs2_dentry_lock {
	unsigned int		dl_count;
	u64			dl_parent_blkno;

	/*
	 * The ocfs2_dentry_lock keeps an inode reference until
	 * dl_lockres has been destroyed. This is usually done in
	 * ->d_iput() anyway, so there should be minimal impact.
	 */
	struct inode		*dl_inode;
	struct ocfs2_lock_res	dl_lockres;
};

static inline void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
					 struct ocfs2_dentry_lock *dl)
{
}

static inline struct dentry *ocfs2_find_local_alias(struct inode *inode,
						    u64 parent_blkno,
						    int skip_unhashed)
{
	return NULL;
}

extern spinlock_t dentry_attach_lock;

#endif /* OCFS2_DCACHE_H */
Commit	Line	Data
ccd979bd MF	1	/* -- mode: c; c-basic-offset: 8; --
	2	* vim: noexpandtab sw=8 ts=8 sts=0:
	3	*
	4	* dcache.h
	5	*
	6	* Function prototypes
	7	*
	8	* Copyright (C) 2002, 2004 Oracle. All rights reserved.
	9	*
	10	* This program is free software; you can redistribute it and/or
	11	* modify it under the terms of the GNU General Public
	12	* License as published by the Free Software Foundation; either
	13	* version 2 of the License, or (at your option) any later version.
	14	*
	15	* This program is distributed in the hope that it will be useful,
	16	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	18	* General Public License for more details.
	19	*
	20	* You should have received a copy of the GNU General Public
	21	* License along with this program; if not, write to the
	22	* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
	23	* Boston, MA 021110-1307, USA.
	24	*/
	25
	26	#ifndef OCFS2_DCACHE_H
	27	#define OCFS2_DCACHE_H
	28
	29	extern struct dentry_operations ocfs2_dentry_ops;
	30
d680efe9 MF	31	struct ocfs2_dentry_lock {
	32	unsigned int dl_count;
	33	u64 dl_parent_blkno;
	34
	35	/*
	36	* The ocfs2_dentry_lock keeps an inode reference until
	37	* dl_lockres has been destroyed. This is usually done in
	38	* ->d_iput() anyway, so there should be minimal impact.
	39	*/
	40	struct inode *dl_inode;
	41	struct ocfs2_lock_res dl_lockres;
	42	};
	43
	44	static inline void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
	45	struct ocfs2_dentry_lock *dl)
	46	{
	47	}
	48
	49	static inline struct dentry ocfs2_find_local_alias(struct inode inode,
	50	u64 parent_blkno,
	51	int skip_unhashed)
	52	{
	53	return NULL;
	54	}
	55
	56	extern spinlock_t dentry_attach_lock;
	57
ccd979bd	58	#endif /* OCFS2_DCACHE_H */