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Diffstat (limited to 'include/zfs/zfs_znode.h')
| -rw-r--r-- | include/zfs/zfs_znode.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/include/zfs/zfs_znode.h b/include/zfs/zfs_znode.h new file mode 100644 index 000000000..2267acafe --- /dev/null +++ b/include/zfs/zfs_znode.h @@ -0,0 +1,71 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 1999,2000,2001,2002,2003,2004 Free Software Foundation, Inc. + * + * 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., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +/* + * Copyright 2010 Sun Microsystems, Inc. All rights reserved. + * Use is subject to license terms. + */ + +#ifndef _SYS_FS_ZFS_ZNODE_H +#define _SYS_FS_ZFS_ZNODE_H + +#include <zfs/zfs_acl.h> + +#define MASTER_NODE_OBJ 1 +#define ZFS_ROOT_OBJ "ROOT" +#define ZPL_VERSION_STR "VERSION" +#define ZFS_SA_ATTRS "SA_ATTRS" + +#define ZPL_VERSION 5ULL + +#define ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48) + +/* + * This is the persistent portion of the znode. It is stored + * in the "bonus buffer" of the file. Short symbolic links + * are also stored in the bonus buffer. + */ +typedef struct znode_phys { + uint64_t zp_atime[2]; /* 0 - last file access time */ + uint64_t zp_mtime[2]; /* 16 - last file modification time */ + uint64_t zp_ctime[2]; /* 32 - last file change time */ + uint64_t zp_crtime[2]; /* 48 - creation time */ + uint64_t zp_gen; /* 64 - generation (txg of creation) */ + uint64_t zp_mode; /* 72 - file mode bits */ + uint64_t zp_size; /* 80 - size of file */ + uint64_t zp_parent; /* 88 - directory parent (`..') */ + uint64_t zp_links; /* 96 - number of links to file */ + uint64_t zp_xattr; /* 104 - DMU object for xattrs */ + uint64_t zp_rdev; /* 112 - dev_t for VBLK & VCHR files */ + uint64_t zp_flags; /* 120 - persistent flags */ + uint64_t zp_uid; /* 128 - file owner */ + uint64_t zp_gid; /* 136 - owning group */ + uint64_t zp_pad[4]; /* 144 - future */ + zfs_znode_acl_t zp_acl; /* 176 - 263 ACL */ + /* + * Data may pad out any remaining bytes in the znode buffer, eg: + * + * |<---------------------- dnode_phys (512) ------------------------>| + * |<-- dnode (192) --->|<----------- "bonus" buffer (320) ---------->| + * |<---- znode (264) ---->|<---- data (56) ---->| + * + * At present, we only use this space to store symbolic links. + */ +} znode_phys_t; + +#endif /* _SYS_FS_ZFS_ZNODE_H */ |