[mirror_ubuntu-jammy-kernel.git] / fs / ocfs2 / dcache.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/* -*- 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.
 */

#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 */
Commit	Line	Data
328970de	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
ccd979bd MF	2	/* -- mode: c; c-basic-offset: 8; --
	3	* vim: noexpandtab sw=8 ts=8 sts=0:
	4	*
	5	* dcache.h
	6	*
	7	* Function prototypes
	8	*
	9	* Copyright (C) 2002, 2004 Oracle. All rights reserved.
ccd979bd MF	10	*/
	11
	12	#ifndef OCFS2_DCACHE_H
	13	#define OCFS2_DCACHE_H
	14
d8fba0ff	15	extern const struct dentry_operations ocfs2_dentry_ops;
ccd979bd	16
d680efe9 MF	17	struct ocfs2_dentry_lock {
d680efe9 MF	18	unsigned int dl_count;
8ed6b237	19	u64 dl_parent_blkno;
d680efe9 MF	20
	21	/*
	22	* The ocfs2_dentry_lock keeps an inode reference until
	23	* dl_lockres has been destroyed. This is usually done in
	24	* ->d_iput() anyway, so there should be minimal impact.
	25	*/
	26	struct inode *dl_inode;
	27	struct ocfs2_lock_res dl_lockres;
	28	};
	29
80c05846	30	int ocfs2_dentry_attach_lock(struct dentry dentry, struct inode inode,
0027dd5b	31	u64 parent_blkno);
80c05846 MF	32
	33	void ocfs2_dentry_lock_put(struct ocfs2_super *osb,
	34	struct ocfs2_dentry_lock *dl);
	35
	36	struct dentry ocfs2_find_local_alias(struct inode inode, u64 parent_blkno,
	37	int skip_unhashed);
	38
	39	void ocfs2_dentry_move(struct dentry dentry, struct dentry target,
	40	struct inode old_dir, struct inode new_dir);
d680efe9 MF	41
d680efe9 MF	42	extern spinlock_t dentry_attach_lock;
5e98d492	43	void ocfs2_dentry_attach_gen(struct dentry *dentry);
d680efe9	44
ccd979bd	45	#endif /* OCFS2_DCACHE_H */