0037b49e83
The use of zfs_sb_t instead of zfsvfs_t results in unnecessary conflicts with the upstream source. Change all instances of zfs_sb_t to zfsvfs_t including updating the variables names. Whenever possible the code was updated to be consistent with hope it appears in the upstream OpenZFS source. Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
104 lines
3.8 KiB
C
104 lines
3.8 KiB
C
/*
|
|
* CDDL HEADER START
|
|
*
|
|
* The contents of this file are subject to the terms of the
|
|
* Common Development and Distribution License (the "License").
|
|
* You may not use this file except in compliance with the License.
|
|
*
|
|
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
|
* or http://www.opensolaris.org/os/licensing.
|
|
* See the License for the specific language governing permissions
|
|
* and limitations under the License.
|
|
*
|
|
* When distributing Covered Code, include this CDDL HEADER in each
|
|
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
|
|
* If applicable, add the following below this CDDL HEADER, with the
|
|
* fields enclosed by brackets "[]" replaced with your own identifying
|
|
* information: Portions Copyright [yyyy] [name of copyright owner]
|
|
*
|
|
* CDDL HEADER END
|
|
*/
|
|
/*
|
|
* Copyright (c) 2005, 2010, Oracle and/or its affiliates. All rights reserved.
|
|
* Copyright (C) 2011 Lawrence Livermore National Security, LLC.
|
|
* Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
|
|
* LLNL-CODE-403049.
|
|
* Rewritten for Linux by:
|
|
* Rohan Puri <rohan.puri15@gmail.com>
|
|
* Brian Behlendorf <behlendorf1@llnl.gov>
|
|
*/
|
|
|
|
#ifndef _ZFS_CTLDIR_H
|
|
#define _ZFS_CTLDIR_H
|
|
|
|
#include <sys/vnode.h>
|
|
#include <sys/pathname.h>
|
|
#include <sys/zfs_vfsops.h>
|
|
#include <sys/zfs_znode.h>
|
|
|
|
#define ZFS_CTLDIR_NAME ".zfs"
|
|
#define ZFS_SNAPDIR_NAME "snapshot"
|
|
#define ZFS_SHAREDIR_NAME "shares"
|
|
|
|
#define zfs_has_ctldir(zdp) \
|
|
((zdp)->z_id == ZTOZSB(zdp)->z_root && \
|
|
(ZTOZSB(zdp)->z_ctldir != NULL))
|
|
#define zfs_show_ctldir(zdp) \
|
|
(zfs_has_ctldir(zdp) && \
|
|
(ZTOZSB(zdp)->z_show_ctldir))
|
|
|
|
extern int zfs_expire_snapshot;
|
|
|
|
/* zfsctl generic functions */
|
|
extern int zfsctl_create(zfsvfs_t *);
|
|
extern void zfsctl_destroy(zfsvfs_t *);
|
|
extern struct inode *zfsctl_root(znode_t *);
|
|
extern void zfsctl_init(void);
|
|
extern void zfsctl_fini(void);
|
|
extern boolean_t zfsctl_is_node(struct inode *ip);
|
|
extern boolean_t zfsctl_is_snapdir(struct inode *ip);
|
|
extern int zfsctl_fid(struct inode *ip, fid_t *fidp);
|
|
|
|
/* zfsctl '.zfs' functions */
|
|
extern int zfsctl_root_lookup(struct inode *dip, char *name,
|
|
struct inode **ipp, int flags, cred_t *cr, int *direntflags,
|
|
pathname_t *realpnp);
|
|
|
|
/* zfsctl '.zfs/snapshot' functions */
|
|
extern int zfsctl_snapdir_lookup(struct inode *dip, char *name,
|
|
struct inode **ipp, int flags, cred_t *cr, int *direntflags,
|
|
pathname_t *realpnp);
|
|
extern int zfsctl_snapdir_rename(struct inode *sdip, char *sname,
|
|
struct inode *tdip, char *tname, cred_t *cr, int flags);
|
|
extern int zfsctl_snapdir_remove(struct inode *dip, char *name, cred_t *cr,
|
|
int flags);
|
|
extern int zfsctl_snapdir_mkdir(struct inode *dip, char *dirname, vattr_t *vap,
|
|
struct inode **ipp, cred_t *cr, int flags);
|
|
extern int zfsctl_snapshot_mount(struct path *path, int flags);
|
|
extern int zfsctl_snapshot_unmount(char *snapname, int flags);
|
|
extern int zfsctl_snapshot_unmount_delay(spa_t *spa, uint64_t objsetid,
|
|
int delay);
|
|
extern int zfsctl_snapdir_vget(struct super_block *sb, uint64_t objsetid,
|
|
int gen, struct inode **ipp);
|
|
|
|
/* zfsctl '.zfs/shares' functions */
|
|
extern int zfsctl_shares_lookup(struct inode *dip, char *name,
|
|
struct inode **ipp, int flags, cred_t *cr, int *direntflags,
|
|
pathname_t *realpnp);
|
|
|
|
/*
|
|
* These inodes numbers are reserved for the .zfs control directory.
|
|
* It is important that they be no larger that 48-bits because only
|
|
* 6 bytes are reserved in the NFS file handle for the object number.
|
|
* However, they should be as large as possible to avoid conflicts
|
|
* with the objects which are assigned monotonically by the dmu.
|
|
*/
|
|
#define ZFSCTL_INO_ROOT 0x0000FFFFFFFFFFFFULL
|
|
#define ZFSCTL_INO_SHARES 0x0000FFFFFFFFFFFEULL
|
|
#define ZFSCTL_INO_SNAPDIR 0x0000FFFFFFFFFFFDULL
|
|
#define ZFSCTL_INO_SNAPDIRS 0x0000FFFFFFFFFFFCULL
|
|
|
|
#define ZFSCTL_EXPIRE_SNAPSHOT 300
|
|
|
|
#endif /* _ZFS_CTLDIR_H */
|