sys/zfs_sa.h

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/*
 * 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 2010 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

#ifndef _SYS_ZFS_SA_H
#define _SYS_ZFS_SA_H

#ifdef _KERNEL
#include <sys/list.h>
#include <sys/dmu.h>
#include <sys/zfs_acl.h>
#include <sys/zfs_znode.h>
#include <sys/sa.h>
#include <sys/zil.h>


#endif

#ifdef  __cplusplus
extern "C" {
#endif

typedef enum zpl_attr {
        ZPL_ATIME,
        ZPL_MTIME,
        ZPL_CTIME,
        ZPL_CRTIME,
        ZPL_GEN,
        ZPL_MODE,
        ZPL_SIZE,
        ZPL_PARENT,
        ZPL_LINKS,
        ZPL_XATTR,
        ZPL_RDEV,
        ZPL_FLAGS,
        ZPL_UID,
        ZPL_GID,
        ZPL_PAD,
        ZPL_ZNODE_ACL,
        ZPL_DACL_COUNT,
        ZPL_SYMLINK,
        ZPL_SCANSTAMP,
        ZPL_DACL_ACES,
        ZPL_END
} zpl_attr_t;

#define ZFS_OLD_ZNODE_PHYS_SIZE 0x108
#define ZFS_SA_BASE_ATTR_SIZE   (ZFS_OLD_ZNODE_PHYS_SIZE - \
    sizeof (zfs_acl_phys_t))

#define SA_MODE_OFFSET          0
#define SA_SIZE_OFFSET          8
#define SA_GEN_OFFSET           16
#define SA_UID_OFFSET           24
#define SA_GID_OFFSET           32
#define SA_PARENT_OFFSET        40

extern sa_attr_reg_t zfs_attr_table[ZPL_END + 1];
extern sa_attr_reg_t zfs_legacy_attr_table[ZPL_END + 1];

typedef struct znode_phys {
        uint64_t zp_atime[2];   
        uint64_t zp_mtime[2];   
        uint64_t zp_ctime[2];   
        uint64_t zp_crtime[2];  
        uint64_t zp_gen;        
        uint64_t zp_mode;       
        uint64_t zp_size;       
        uint64_t zp_parent;     
        uint64_t zp_links;      
        uint64_t zp_xattr;      
        uint64_t zp_rdev;       
        uint64_t zp_flags;      
        uint64_t zp_uid;        
        uint64_t zp_gid;        
        uint64_t zp_zap;        
        uint64_t zp_pad[3];     
        zfs_acl_phys_t zp_acl;  
} znode_phys_t;

#ifdef _KERNEL
int zfs_sa_readlink(struct znode *, uio_t *);
void zfs_sa_symlink(struct znode *, char *link, int len, dmu_tx_t *);
void zfs_sa_upgrade(struct sa_handle  *, dmu_tx_t *);
void zfs_sa_get_scanstamp(struct znode *, xvattr_t *);
void zfs_sa_set_scanstamp(struct znode *, xvattr_t *, dmu_tx_t *);
void zfs_sa_uprade_pre(struct sa_handle *, void *, dmu_tx_t *);
void zfs_sa_upgrade_post(struct sa_handle *, void *, dmu_tx_t *);
void zfs_sa_upgrade_txholds(dmu_tx_t *, struct znode *);
#endif

#ifdef  __cplusplus
}
#endif

#endif  /* _SYS_ZFS_SA_H */