xref: /illumos-gate/usr/src/uts/common/fs/zfs/sys/zfs_dir.h (revision c5832a53)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_SYS_FS_ZFS_DIR_H
27 #define	_SYS_FS_ZFS_DIR_H
28 
29 #include <sys/pathname.h>
30 #include <sys/dmu.h>
31 #include <sys/zfs_znode.h>
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 /* zfs_dirent_lock() flags */
38 #define	ZNEW		0x0001		/* entry should not exist */
39 #define	ZEXISTS		0x0002		/* entry should exist */
40 #define	ZSHARED		0x0004		/* shared access (zfs_dirlook()) */
41 #define	ZXATTR		0x0008		/* we want the xattr dir */
42 #define	ZRENAMING	0x0010		/* znode is being renamed */
43 #define	ZCILOOK		0x0020		/* case-insensitive lookup requested */
44 #define	ZCIEXACT	0x0040		/* c-i requires c-s match (rename) */
45 #define	ZHAVELOCK	0x0080		/* z_name_lock is already held */
46 
47 /* mknode flags */
48 #define	IS_ROOT_NODE	0x01		/* create a root node */
49 #define	IS_XATTR	0x02		/* create an extended attribute node */
50 
51 extern int zfs_dirent_lock(zfs_dirlock_t **, znode_t *, char *, znode_t **,
52     int, int *, pathname_t *);
53 extern void zfs_dirent_unlock(zfs_dirlock_t *);
54 extern int zfs_link_create(zfs_dirlock_t *, znode_t *, dmu_tx_t *, int);
55 extern int zfs_link_destroy(zfs_dirlock_t *, znode_t *, dmu_tx_t *, int,
56     boolean_t *);
57 extern int zfs_dirlook(znode_t *, char *, vnode_t **, int, int *,
58     pathname_t *);
59 extern void zfs_mknode(znode_t *, vattr_t *, dmu_tx_t *, cred_t *,
60     uint_t, znode_t **, zfs_acl_ids_t *);
61 extern void zfs_rmnode(znode_t *);
62 extern void zfs_dl_name_switch(zfs_dirlock_t *dl, char *new, char **old);
63 extern boolean_t zfs_dirempty(znode_t *);
64 extern void zfs_unlinked_add(znode_t *, dmu_tx_t *);
65 extern void zfs_unlinked_drain(zfsvfs_t *zfsvfs);
66 extern void zfs_unlinked_drain_stop_wait(zfsvfs_t *zfsvfs);
67 extern int zfs_sticky_remove_access(znode_t *, znode_t *, cred_t *cr);
68 extern int zfs_get_xattrdir(znode_t *, vnode_t **, cred_t *, int);
69 extern int zfs_make_xattrdir(znode_t *, vattr_t *, vnode_t **, cred_t *);
70 
71 #ifdef	__cplusplus
72 }
73 #endif
74 
75 #endif	/* _SYS_FS_ZFS_DIR_H */
76