/* -*- 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 const 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;
};
int ocfs2_dentry_attach_lock(struct dentry *dentry, struct inode *inode,
u64 parent_blkno);
void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
struct ocfs2_dentry_lock *dl);
struct dentry *ocfs2_find_local_alias(struct inode *inode, u64 parent_blkno,
int skip_unhashed);
void ocfs2_dentry_move(struct dentry *dentry, struct dentry *target,
struct inode *old_dir, struct inode *new_dir);
extern spinlock_t dentry_attach_lock;
void ocfs2_dentry_attach_gen(struct dentry *dentry);
#endif /* OCFS2_DCACHE_H */
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