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Diffstat (limited to 'include/sys/zfs_znode.h')
| -rw-r--r-- | include/sys/zfs_znode.h | 334 |
1 files changed, 0 insertions, 334 deletions
diff --git a/include/sys/zfs_znode.h b/include/sys/zfs_znode.h deleted file mode 100644 index 3bd0628389e6..000000000000 --- a/include/sys/zfs_znode.h +++ /dev/null @@ -1,334 +0,0 @@ -// SPDX-License-Identifier: CDDL-1.0 -/* - * 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 https://opensource.org/licenses/CDDL-1.0. - * 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) 2012, 2018 by Delphix. All rights reserved. - * Copyright 2016 Nexenta Systems, Inc. All rights reserved. - */ - -#ifndef _SYS_FS_ZFS_ZNODE_H -#define _SYS_FS_ZFS_ZNODE_H - -#include <sys/zfs_acl.h> -#include <sys/zil.h> -#include <sys/zfs_project.h> - -#ifdef __cplusplus -extern "C" { -#endif - -/* - * Additional file level attributes, that are stored - * in the upper half of z_pflags - */ -#define ZFS_READONLY 0x0000000100000000ull -#define ZFS_HIDDEN 0x0000000200000000ull -#define ZFS_SYSTEM 0x0000000400000000ull -#define ZFS_ARCHIVE 0x0000000800000000ull -#define ZFS_IMMUTABLE 0x0000001000000000ull -#define ZFS_NOUNLINK 0x0000002000000000ull -#define ZFS_APPENDONLY 0x0000004000000000ull -#define ZFS_NODUMP 0x0000008000000000ull -#define ZFS_OPAQUE 0x0000010000000000ull -#define ZFS_AV_QUARANTINED 0x0000020000000000ull -#define ZFS_AV_MODIFIED 0x0000040000000000ull -#define ZFS_REPARSE 0x0000080000000000ull -#define ZFS_OFFLINE 0x0000100000000000ull -#define ZFS_SPARSE 0x0000200000000000ull - -/* - * PROJINHERIT attribute is used to indicate that the child object under the - * directory which has the PROJINHERIT attribute needs to inherit its parent - * project ID that is used by project quota. - */ -#define ZFS_PROJINHERIT 0x0000400000000000ull - -/* - * PROJID attr is used internally to indicate that the object has project ID. - */ -#define ZFS_PROJID 0x0000800000000000ull - -#define ZFS_ATTR_SET(zp, attr, value, pflags, tx) \ -{ \ - if (value) \ - pflags |= attr; \ - else \ - pflags &= ~attr; \ - VERIFY0(sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(ZTOZSB(zp)), \ - &pflags, sizeof (pflags), tx)); \ -} - -/* - * Define special zfs pflags - */ -#define ZFS_XATTR 0x1 /* is an extended attribute */ -#define ZFS_INHERIT_ACE 0x2 /* ace has inheritable ACEs */ -#define ZFS_ACL_TRIVIAL 0x4 /* files ACL is trivial */ -#define ZFS_ACL_OBJ_ACE 0x8 /* ACL has CMPLX Object ACE */ -#define ZFS_ACL_PROTECTED 0x10 /* ACL protected */ -#define ZFS_ACL_DEFAULTED 0x20 /* ACL should be defaulted */ -#define ZFS_ACL_AUTO_INHERIT 0x40 /* ACL should be inherited */ -#define ZFS_BONUS_SCANSTAMP 0x80 /* Scanstamp in bonus area */ -#define ZFS_NO_EXECS_DENIED 0x100 /* exec was given to everyone */ - -#define SA_ZPL_ATIME(z) z->z_attr_table[ZPL_ATIME] -#define SA_ZPL_MTIME(z) z->z_attr_table[ZPL_MTIME] -#define SA_ZPL_CTIME(z) z->z_attr_table[ZPL_CTIME] -#define SA_ZPL_CRTIME(z) z->z_attr_table[ZPL_CRTIME] -#define SA_ZPL_GEN(z) z->z_attr_table[ZPL_GEN] -#define SA_ZPL_DACL_ACES(z) z->z_attr_table[ZPL_DACL_ACES] -#define SA_ZPL_XATTR(z) z->z_attr_table[ZPL_XATTR] -#define SA_ZPL_SYMLINK(z) z->z_attr_table[ZPL_SYMLINK] -#define SA_ZPL_RDEV(z) z->z_attr_table[ZPL_RDEV] -#define SA_ZPL_SCANSTAMP(z) z->z_attr_table[ZPL_SCANSTAMP] -#define SA_ZPL_UID(z) z->z_attr_table[ZPL_UID] -#define SA_ZPL_GID(z) z->z_attr_table[ZPL_GID] -#define SA_ZPL_PARENT(z) z->z_attr_table[ZPL_PARENT] -#define SA_ZPL_LINKS(z) z->z_attr_table[ZPL_LINKS] -#define SA_ZPL_MODE(z) z->z_attr_table[ZPL_MODE] -#define SA_ZPL_DACL_COUNT(z) z->z_attr_table[ZPL_DACL_COUNT] -#define SA_ZPL_FLAGS(z) z->z_attr_table[ZPL_FLAGS] -#define SA_ZPL_SIZE(z) z->z_attr_table[ZPL_SIZE] -#define SA_ZPL_ZNODE_ACL(z) z->z_attr_table[ZPL_ZNODE_ACL] -#define SA_ZPL_DXATTR(z) z->z_attr_table[ZPL_DXATTR] -#define SA_ZPL_PAD(z) z->z_attr_table[ZPL_PAD] -#define SA_ZPL_PROJID(z) z->z_attr_table[ZPL_PROJID] - -/* - * Is ID ephemeral? - */ -#define IS_EPHEMERAL(x) (x > MAXUID) - -/* - * Should we use FUIDs? - */ -#define USE_FUIDS(version, os) (version >= ZPL_VERSION_FUID && \ - spa_version(dmu_objset_spa(os)) >= SPA_VERSION_FUID) -#define USE_SA(version, os) (version >= ZPL_VERSION_SA && \ - spa_version(dmu_objset_spa(os)) >= SPA_VERSION_SA) - -#define MASTER_NODE_OBJ 1 - -/* - * Special attributes for master node. - * "userquota@", "groupquota@" and "projectquota@" are also valid (from - * zfs_userquota_prop_prefixes[]). - */ -#define ZFS_FSID "FSID" -#define ZFS_UNLINKED_SET "DELETE_QUEUE" -#define ZFS_ROOT_OBJ "ROOT" -#define ZPL_VERSION_STR "VERSION" -#define ZFS_FUID_TABLES "FUID" -#define ZFS_SHARES_DIR "SHARES" -#define ZFS_SA_ATTRS "SA_ATTRS" - -/* - * Convert mode bits (zp_mode) to BSD-style DT_* values for storing in - * the directory entries. On Linux systems this value is already - * defined correctly as part of the /usr/include/dirent.h header file. - */ -#ifndef IFTODT -#define IFTODT(mode) (((mode) & S_IFMT) >> 12) -#endif - -/* - * The directory entry has the type (currently unused on Solaris) in the - * top 4 bits, and the object number in the low 48 bits. The "middle" - * 12 bits are unused. - */ -#define ZFS_DIRENT_TYPE(de) BF64_GET(de, 60, 4) -#define ZFS_DIRENT_OBJ(de) BF64_GET(de, 0, 48) - -extern int zfs_obj_to_path(objset_t *osp, uint64_t obj, char *buf, int len); -extern int zfs_obj_to_pobj(objset_t *osp, sa_handle_t *hdl, - sa_attr_type_t *sa_table, uint64_t *pobjp, int *is_xattrdir); -extern int zfs_get_zplprop(objset_t *os, zfs_prop_t prop, uint64_t *value); - -#ifdef _KERNEL -#include <sys/zfs_znode_impl.h> - -/* - * Directory entry locks control access to directory entries. - * They are used to protect creates, deletes, and renames. - * Each directory znode has a mutex and a list of locked names. - */ -typedef struct zfs_dirlock { - char *dl_name; /* directory entry being locked */ - uint32_t dl_sharecnt; /* 0 if exclusive, > 0 if shared */ - uint8_t dl_namelock; /* 1 if z_name_lock is NOT held */ - uint16_t dl_namesize; /* set if dl_name was allocated */ - kcondvar_t dl_cv; /* wait for entry to be unlocked */ - struct znode *dl_dzp; /* directory znode */ - struct zfs_dirlock *dl_next; /* next in z_dirlocks list */ -} zfs_dirlock_t; - -typedef struct znode { - uint64_t z_id; /* object ID for this znode */ - kmutex_t z_lock; /* znode modification lock */ - krwlock_t z_parent_lock; /* parent lock for directories */ - krwlock_t z_name_lock; /* "master" lock for dirent locks */ - zfs_dirlock_t *z_dirlocks; /* directory entry lock list */ - zfs_rangelock_t z_rangelock; /* file range locks */ - boolean_t z_unlinked; /* file has been unlinked */ - boolean_t z_atime_dirty; /* atime needs to be synced */ - boolean_t z_zn_prefetch; /* Prefetch znodes? */ - boolean_t z_is_sa; /* are we native sa? */ - boolean_t z_is_ctldir; /* are we .zfs entry */ - boolean_t z_suspended; /* extra ref from a suspend? */ - uint_t z_blksz; /* block size in bytes */ - uint_t z_seq; /* modification sequence number */ - uint64_t z_mapcnt; /* number of pages mapped to file */ - uint64_t z_dnodesize; /* dnode size */ - uint64_t z_size; /* file size (cached) */ - uint64_t z_pflags; /* pflags (cached) */ - uint32_t z_sync_cnt; /* synchronous open count */ - mode_t z_mode; /* mode (cached) */ - kmutex_t z_acl_lock; /* acl data lock */ - zfs_acl_t *z_acl_cached; /* cached acl */ - krwlock_t z_xattr_lock; /* xattr data lock */ - nvlist_t *z_xattr_cached; /* cached xattrs */ - uint64_t z_xattr_parent; /* parent obj for this xattr */ - uint64_t z_projid; /* project ID */ - list_node_t z_link_node; /* all znodes in fs link */ - sa_handle_t *z_sa_hdl; /* handle to sa data */ - - /* - * Platform specific field, defined by each platform and only - * accessible from platform specific code. - */ - ZNODE_OS_FIELDS; -} znode_t; - -/* Verifies the znode is valid. */ -static inline int -zfs_verify_zp(znode_t *zp) -{ - if (unlikely(zp->z_sa_hdl == NULL)) - return (SET_ERROR(EIO)); - return (0); -} - -/* zfs_enter and zfs_verify_zp together */ -static inline int -zfs_enter_verify_zp(zfsvfs_t *zfsvfs, znode_t *zp, const char *tag) -{ - int error; - if ((error = zfs_enter(zfsvfs, tag)) != 0) - return (error); - if ((error = zfs_verify_zp(zp)) != 0) { - zfs_exit(zfsvfs, tag); - return (error); - } - return (0); -} - -typedef struct znode_hold { - uint64_t zh_obj; /* object id */ - avl_node_t zh_node; /* avl tree linkage */ - kmutex_t zh_lock; /* lock serializing object access */ - int zh_refcount; /* active consumer reference count */ -} znode_hold_t; - -static inline uint64_t -zfs_inherit_projid(znode_t *dzp) -{ - return ((dzp->z_pflags & ZFS_PROJINHERIT) ? dzp->z_projid : - ZFS_DEFAULT_PROJID); -} - -/* - * Timestamp defines - */ -#define ACCESSED (ATTR_ATIME) -#define STATE_CHANGED (ATTR_CTIME) -#define CONTENT_MODIFIED (ATTR_MTIME | ATTR_CTIME) - -extern int zfs_init_fs(zfsvfs_t *, znode_t **); -extern void zfs_set_dataprop(objset_t *); -extern void zfs_create_fs(objset_t *os, cred_t *cr, nvlist_t *, - dmu_tx_t *tx); -extern void zfs_tstamp_update_setup(znode_t *, uint_t, uint64_t [2], - uint64_t [2]); -extern void zfs_grow_blocksize(znode_t *, uint64_t, dmu_tx_t *); -extern int zfs_freesp(znode_t *, uint64_t, uint64_t, int, boolean_t); -extern void zfs_znode_init(void); -extern void zfs_znode_fini(void); -extern int zfs_znode_hold_compare(const void *, const void *); -extern znode_hold_t *zfs_znode_hold_enter(zfsvfs_t *, uint64_t); -extern void zfs_znode_hold_exit(zfsvfs_t *, znode_hold_t *); -extern int zfs_zget(zfsvfs_t *, uint64_t, znode_t **); -extern int zfs_rezget(znode_t *); -extern void zfs_zinactive(znode_t *); -extern void zfs_znode_delete(znode_t *, dmu_tx_t *); -extern void zfs_remove_op_tables(void); -extern int zfs_create_op_tables(void); -extern dev_t zfs_cmpldev(uint64_t); -extern int zfs_get_stats(objset_t *os, nvlist_t *nv); -extern boolean_t zfs_get_vfs_flag_unmounted(objset_t *os); -extern void zfs_znode_dmu_fini(znode_t *); - -extern void zfs_log_create(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, - znode_t *dzp, znode_t *zp, const char *name, vsecattr_t *, - zfs_fuid_info_t *, vattr_t *vap); -extern int zfs_log_create_txtype(zil_create_t, vsecattr_t *vsecp, - vattr_t *vap); -extern void zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, - znode_t *dzp, const char *name, uint64_t foid, boolean_t unlinked); -#define ZFS_NO_OBJECT 0 /* no object id */ -extern void zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, - znode_t *dzp, znode_t *zp, const char *name); -extern void zfs_log_symlink(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, - znode_t *dzp, znode_t *zp, const char *name, const char *link); -extern void zfs_log_rename(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype, - znode_t *sdzp, const char *sname, znode_t *tdzp, const char *dname, - znode_t *szp); -extern void zfs_log_rename_exchange(zilog_t *zilog, dmu_tx_t *tx, - uint64_t txtype, znode_t *sdzp, const char *sname, znode_t *tdzp, - const char *dname, znode_t *szp); -extern void zfs_log_rename_whiteout(zilog_t *zilog, dmu_tx_t *tx, - uint64_t txtype, znode_t *sdzp, const char *sname, znode_t *tdzp, - const char *dname, znode_t *szp, znode_t *wzp); -extern void zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype, - znode_t *zp, offset_t off, ssize_t len, boolean_t commit, - boolean_t o_direct, zil_callback_t callback, void *callback_data); -extern void zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype, - znode_t *zp, uint64_t off, uint64_t len); -extern void zfs_log_setattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, - znode_t *zp, vattr_t *vap, uint_t mask_applied, zfs_fuid_info_t *fuidp); -extern void zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp, - vsecattr_t *vsecp, zfs_fuid_info_t *fuidp); -extern void zfs_log_clone_range(zilog_t *zilog, dmu_tx_t *tx, int txtype, - znode_t *zp, uint64_t offset, uint64_t length, uint64_t blksz, - const blkptr_t *bps, size_t nbps); -extern void zfs_xvattr_set(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx); -extern void zfs_upgrade(zfsvfs_t *zfsvfs, dmu_tx_t *tx); -extern void zfs_log_setsaxattr(zilog_t *zilog, dmu_tx_t *tx, int txtype, - znode_t *zp, const char *name, const void *value, size_t size); - -extern void zfs_znode_update_vfs(struct znode *); - -#endif -#ifdef __cplusplus -} -#endif - -#endif /* _SYS_FS_ZFS_ZNODE_H */ |