#include <sys/list.h>
#include <sys/dmu.h>
#include <sys/sa.h>
#include <sys/zfs_vfsops.h>
#include <sys/rrwlock.h>
#include <sys/zfs_sa.h>
#include <sys/zfs_stat.h>
#include <sys/zfs_acl.h>
#include <sys/zil.h>
#include <sys/zfs_vfsops.h>
#include <sys/zfs_sa.h>

Include dependency graph for zfs_znode.h:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Data Structures
struct	zfs_dirlock
	Directory Entry Locks. More...
struct	znode
Defines
#define	ZFS_ATTR_SET(zp, attr, value, pflags, tx)
#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_PAD(z) z->z_attr_table[ZPL_PAD]
#define	IS_EPHEMERAL(x) (x > MAXUID)
	Is ID ephemeral?
#define	USE_FUIDS(version, os)
	Should we use FUIDs?
#define	USE_SA(version, os)
#define	MASTER_NODE_OBJ 1
#define	ZFS_MAX_BLOCKSIZE (SPA_MAXBLOCKSIZE)
#define	ZFS_MAXNAMELEN (MAXNAMELEN - 1)
	Path component length.
#define	IFTODT(mode) (((mode) & S_IFMT) >> 12)
	Convert mode bits (zp_mode) to BSD-style DT_* values for storing in the directory entries.
#define	ZTOV(ZP) ((ZP)->z_vnode)
#define	VTOZ(VP) ((znode_t *)(VP)->v_data)
#define	ZFS_ENTER(zfsvfs)
	Called on entry to each ZFS vnode and vfs operation.
#define	ZFS_ENTER_NOERROR(zfsvfs) rrw_enter(&(zfsvfs)->z_teardown_lock, RW_READER, FTAG)
	Called when we can't return EIO.
#define	ZFS_EXIT(zfsvfs) rrw_exit(&(zfsvfs)->z_teardown_lock, FTAG)
	Must be called before exitting the vop.
#define	ZFS_VERIFY_ZP(zp)
	Verifies the znode is valid.
#define	ZFS_TIME_ENCODE(tp, stmp)
	Encode ZFS stored time value from a struct timespec.
#define	ZFS_TIME_DECODE(tp, stmp)
	Decode ZFS stored time value to a struct timespec.
#define	ZFS_ACCESSTIME_STAMP(zfsvfs, zp)
#define	ZFS_NO_OBJECT 0
	no object id
Additional file level attributes
Stored in the upper half of zp_flags
#define	ZFS_READONLY 0x0000000100000000
#define	ZFS_HIDDEN 0x0000000200000000
#define	ZFS_SYSTEM 0x0000000400000000
#define	ZFS_ARCHIVE 0x0000000800000000
#define	ZFS_IMMUTABLE 0x0000001000000000
#define	ZFS_NOUNLINK 0x0000002000000000
#define	ZFS_APPENDONLY 0x0000004000000000
#define	ZFS_NODUMP 0x0000008000000000
#define	ZFS_OPAQUE 0x0000010000000000
#define	ZFS_AV_QUARANTINED 0x0000020000000000
#define	ZFS_AV_MODIFIED 0x0000040000000000
#define	ZFS_REPARSE 0x0000080000000000
#define	ZFS_OFFLINE 0x0000100000000000
#define	ZFS_SPARSE 0x0000200000000000
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
Special attributes for master node.
"userquota@" and "groupquota@" 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"
Directory Entries
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)
Macros for dealing with dmu_buf_hold
#define	ZFS_OBJ_HASH(obj_num) ((obj_num) & (ZFS_OBJ_MTX_SZ - 1))
#define	ZFS_OBJ_MUTEX(zfsvfs, obj_num) (&(zfsvfs)->z_hold_mtx[ZFS_OBJ_HASH(obj_num)])
#define	ZFS_OBJ_HOLD_ENTER(zfsvfs, obj_num) mutex_enter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
#define	ZFS_OBJ_HOLD_TRYENTER(zfsvfs, obj_num) mutex_tryenter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
#define	ZFS_OBJ_HOLD_EXIT(zfsvfs, obj_num) mutex_exit(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))
Timestamp defines
#define	ACCESSED (AT_ATIME)
#define	STATE_CHANGED (AT_CTIME)
#define	CONTENT_MODIFIED (AT_MTIME \| AT_CTIME)
Typedefs
typedef struct zfs_dirlock	zfs_dirlock_t
	Directory Entry Locks.
typedef struct znode	znode_t
Functions
int	zfs_init_fs (zfsvfs_t , znode_t *)
void	zfs_set_dataprop (objset_t *)
void	zfs_create_fs (objset_t os, cred_t cr, nvlist_t , dmu_tx_t tx)
void	zfs_tstamp_update_setup (znode_t *, uint_t, uint64_t[2], uint64_t[2], boolean_t)
void	zfs_grow_blocksize (znode_t , uint64_t, dmu_tx_t )
	Grow the block size for a file.
int	zfs_freesp (znode_t *, uint64_t, uint64_t, int, boolean_t)
	Free space in a file.
void	zfs_znode_init (void)
void	zfs_znode_fini (void)
int	zfs_zget (zfsvfs_t , uint64_t, znode_t *)
int	zfs_rezget (znode_t *)
void	zfs_zinactive (znode_t *)
void	zfs_znode_delete (znode_t , dmu_tx_t )
void	zfs_znode_free (znode_t *)
void	zfs_remove_op_tables ()
int	zfs_create_op_tables ()
dev_t	zfs_cmpldev (uint64_t)
	Special cmpldev for ZFS private use.
int	zfs_get_zplprop (objset_t os, zfs_prop_t prop, uint64_t value)
	Read a property stored within the master node.
int	zfs_get_stats (objset_t os, nvlist_t nv)
void	zfs_znode_dmu_fini (znode_t *)
void	zfs_log_create (zilog_t zilog, dmu_tx_t tx, uint64_t txtype, znode_t dzp, znode_t zp, char name, vsecattr_t , zfs_fuid_info_t , vattr_t vap)
	Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and TX_MKXATTR transactions.
int	zfs_log_create_txtype (zil_create_t, vsecattr_t vsecp, vattr_t vap)
void	zfs_log_remove (zilog_t zilog, dmu_tx_t tx, uint64_t txtype, znode_t dzp, char name, uint64_t foid)
	handles both TX_REMOVE and TX_RMDIR transactions.
void	zfs_log_link (zilog_t zilog, dmu_tx_t tx, uint64_t txtype, znode_t dzp, znode_t zp, char *name)
	handles TX_LINK transactions.
void	zfs_log_symlink (zilog_t zilog, dmu_tx_t tx, uint64_t txtype, znode_t dzp, znode_t zp, char name, char link)
	handles TX_SYMLINK transactions.
void	zfs_log_rename (zilog_t zilog, dmu_tx_t tx, uint64_t txtype, znode_t sdzp, char sname, znode_t tdzp, char dname, znode_t *szp)
	handles TX_RENAME transactions.
void	zfs_log_write (zilog_t zilog, dmu_tx_t tx, int txtype, znode_t *zp, offset_t off, ssize_t len, int ioflag)
void	zfs_log_truncate (zilog_t zilog, dmu_tx_t tx, int txtype, znode_t *zp, uint64_t off, uint64_t len)
	handles TX_TRUNCATE transactions.
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)
	handles TX_SETATTR transactions.
void	zfs_log_acl (zilog_t zilog, dmu_tx_t tx, znode_t zp, vsecattr_t vsecp, zfs_fuid_info_t *fuidp)
	handles TX_ACL transactions.
void	zfs_xvattr_set (znode_t zp, xvattr_t xvap, dmu_tx_t *tx)
	Update in-core attributes.
void	zfs_upgrade (zfsvfs_t zfsvfs, dmu_tx_t tx)
int	zfs_create_share_dir (zfsvfs_t zfsvfs, dmu_tx_t tx)
int	zfs_obj_to_path (objset_t osp, uint64_t obj, char buf, int len)
Variables
zil_get_data_t	zfs_get_data
zil_replay_func_t *	zfs_replay_vector [TX_MAX_TYPE]
	Callback vectors for replaying records.
int	zfsfstype

Detailed Description

Range locking rules

When truncating a file (zfs_create, zfs_setattr, zfs_space) the whole file range needs to be locked as RL_WRITER. Only then can the pages be freed etc and zp_size reset. zp_size must be set within range lock.
For writes and punching holes (zfs_write & zfs_space) just the range being written or freed needs to be locked as RL_WRITER. Multiple writes at the end of the file must coordinate zp_size updates to ensure data isn't lost. A compare and swap loop is currently used to ensure the file size is at least the offset last written.
For reads (zfs_read, zfs_get_data & zfs_putapage) just the range being read needs to be locked as RL_READER. A check against zp_size can then be made for reading beyond end of file.

Definition in file zfs_znode.h.

Define Documentation

#define ACCESSED (AT_ATIME)

Definition at line 330 of file zfs_znode.h.

#define CONTENT_MODIFIED (AT_MTIME | AT_CTIME)

Definition at line 332 of file zfs_znode.h.

#define IFTODT ( mode ) (((mode) & S_IFMT) >> 12)

Convert mode bits (zp_mode) to BSD-style DT_* values for storing in the directory entries.

Definition at line 158 of file zfs_znode.h.

#define IS_EPHEMERAL ( x ) (x > MAXUID)

Is ID ephemeral?

Definition at line 114 of file zfs_znode.h.

#define MASTER_NODE_OBJ 1

Definition at line 124 of file zfs_znode.h.

#define SA_ZPL_ATIME ( z ) z->z_attr_table[ZPL_ATIME]

Definition at line 90 of file zfs_znode.h.

#define SA_ZPL_CRTIME ( z ) z->z_attr_table[ZPL_CRTIME]

Definition at line 93 of file zfs_znode.h.

#define SA_ZPL_CTIME ( z ) z->z_attr_table[ZPL_CTIME]

Definition at line 92 of file zfs_znode.h.

#define SA_ZPL_DACL_ACES ( z ) z->z_attr_table[ZPL_DACL_ACES]

Definition at line 95 of file zfs_znode.h.

#define SA_ZPL_DACL_COUNT ( z ) z->z_attr_table[ZPL_DACL_COUNT]

Definition at line 105 of file zfs_znode.h.

#define SA_ZPL_FLAGS ( z ) z->z_attr_table[ZPL_FLAGS]

Definition at line 106 of file zfs_znode.h.

#define SA_ZPL_GEN ( z ) z->z_attr_table[ZPL_GEN]

Definition at line 94 of file zfs_znode.h.

#define SA_ZPL_GID ( z ) z->z_attr_table[ZPL_GID]

Definition at line 101 of file zfs_znode.h.

#define SA_ZPL_LINKS ( z ) z->z_attr_table[ZPL_LINKS]

Definition at line 103 of file zfs_znode.h.

#define SA_ZPL_MODE ( z ) z->z_attr_table[ZPL_MODE]

Definition at line 104 of file zfs_znode.h.

#define SA_ZPL_MTIME ( z ) z->z_attr_table[ZPL_MTIME]

Definition at line 91 of file zfs_znode.h.

#define SA_ZPL_PAD ( z ) z->z_attr_table[ZPL_PAD]

Definition at line 109 of file zfs_znode.h.

#define SA_ZPL_PARENT ( z ) z->z_attr_table[ZPL_PARENT]

Definition at line 102 of file zfs_znode.h.

#define SA_ZPL_RDEV ( z ) z->z_attr_table[ZPL_RDEV]

Definition at line 98 of file zfs_znode.h.

#define SA_ZPL_SCANSTAMP ( z ) z->z_attr_table[ZPL_SCANSTAMP]

Definition at line 99 of file zfs_znode.h.

#define SA_ZPL_SIZE ( z ) z->z_attr_table[ZPL_SIZE]

Definition at line 107 of file zfs_znode.h.

#define SA_ZPL_SYMLINK ( z ) z->z_attr_table[ZPL_SYMLINK]

Definition at line 97 of file zfs_znode.h.

#define SA_ZPL_UID ( z ) z->z_attr_table[ZPL_UID]

Definition at line 100 of file zfs_znode.h.

#define SA_ZPL_XATTR ( z ) z->z_attr_table[ZPL_XATTR]

Definition at line 96 of file zfs_znode.h.

#define SA_ZPL_ZNODE_ACL ( z ) z->z_attr_table[ZPL_ZNODE_ACL]

Definition at line 108 of file zfs_znode.h.

#define STATE_CHANGED (AT_CTIME)

Definition at line 331 of file zfs_znode.h.

#define USE_FUIDS	(	version,
		os
	)

Value:

(version >= ZPL_VERSION_FUID && \
    spa_version(dmu_objset_spa(os)) >= SPA_VERSION_FUID)

Should we use FUIDs?

Definition at line 119 of file zfs_znode.h.

#define USE_SA	(	version,
		os
	)

Value:

(version >= ZPL_VERSION_SA && \
    spa_version(dmu_objset_spa(os)) >= SPA_VERSION_SA)

Definition at line 121 of file zfs_znode.h.

#define VTOZ ( VP ) ((znode_t *)(VP)->v_data)

Definition at line 266 of file zfs_znode.h.

#define ZFS_ACCESSTIME_STAMP	(	zfsvfs,
		zp
	)

Value:

if ((zfsvfs)->z_atime && !((zfsvfs)->z_vfs->vfs_flag & VFS_RDONLY)) \
                zfs_tstamp_update_setup(zp, ACCESSED, NULL, NULL, B_FALSE);

Definition at line 335 of file zfs_znode.h.

#define ZFS_ACL_AUTO_INHERIT 0x40

ACL should be inherited.

Definition at line 85 of file zfs_znode.h.

#define ZFS_ACL_DEFAULTED 0x20

ACL should be defaulted.

Definition at line 84 of file zfs_znode.h.

#define ZFS_ACL_OBJ_ACE 0x8

ACL has CMPLX Object ACE.

Definition at line 82 of file zfs_znode.h.

#define ZFS_ACL_PROTECTED 0x10

ACL protected.

Definition at line 83 of file zfs_znode.h.

#define ZFS_ACL_TRIVIAL 0x4

files ACL is trivial

Definition at line 81 of file zfs_znode.h.

#define ZFS_APPENDONLY 0x0000004000000000

Definition at line 55 of file zfs_znode.h.

#define ZFS_ARCHIVE 0x0000000800000000

Definition at line 52 of file zfs_znode.h.

#define ZFS_ATTR_SET	(	zp,
		attr,
		value,
		pflags,
		tx
	)

Value:

{ \
        if (value) \
                pflags |= attr; \
        else \
                pflags &= ~attr; \
        VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zp->z_zfsvfs), \
            &pflags, sizeof (pflags), tx)); \
}

Definition at line 65 of file zfs_znode.h.

#define ZFS_AV_MODIFIED 0x0000040000000000

Definition at line 59 of file zfs_znode.h.

#define ZFS_AV_QUARANTINED 0x0000020000000000

Definition at line 58 of file zfs_znode.h.

#define ZFS_BONUS_SCANSTAMP 0x80

Scanstamp in bonus area.

Definition at line 86 of file zfs_znode.h.

#define ZFS_DIRENT_OBJ ( de ) BF64_GET(de, 0, 48)

Definition at line 170 of file zfs_znode.h.

#define ZFS_DIRENT_TYPE ( de ) BF64_GET(de, 60, 4)

Definition at line 169 of file zfs_znode.h.

#define ZFS_ENTER ( zfsvfs )

Value:

{ \
                rrw_enter(&(zfsvfs)->z_teardown_lock, RW_READER, FTAG); \
                if ((zfsvfs)->z_unmounted) { \
                        ZFS_EXIT(zfsvfs); \
                        return (EIO); \
                } \
        }

Called on entry to each ZFS vnode and vfs operation.

Definition at line 270 of file zfs_znode.h.

#define ZFS_ENTER_NOERROR ( zfsvfs ) rrw_enter(&(zfsvfs)->z_teardown_lock, RW_READER, FTAG)

Called when we can't return EIO.

Definition at line 280 of file zfs_znode.h.

#define ZFS_EXIT ( zfsvfs ) rrw_exit(&(zfsvfs)->z_teardown_lock, FTAG)

Must be called before exitting the vop.

Definition at line 284 of file zfs_znode.h.

#define ZFS_FSID "FSID"

Definition at line 132 of file zfs_znode.h.

#define ZFS_FUID_TABLES "FUID"

Definition at line 136 of file zfs_znode.h.

#define ZFS_HIDDEN 0x0000000200000000

Definition at line 50 of file zfs_znode.h.

#define ZFS_IMMUTABLE 0x0000001000000000

Definition at line 53 of file zfs_znode.h.

#define ZFS_INHERIT_ACE 0x2

ace has inheritable ACEs

Definition at line 80 of file zfs_znode.h.

#define ZFS_MAX_BLOCKSIZE (SPA_MAXBLOCKSIZE)

Definition at line 140 of file zfs_znode.h.

#define ZFS_MAXNAMELEN (MAXNAMELEN - 1)

Path component length.

The generic fs code uses MAXNAMELEN to represent what the largest component length is. Unfortunately, this length includes the terminating NULL. ZFS needs to tell the users via pathconf() and statvfs() what the true maximum length of a component is, excluding the NULL.

Definition at line 151 of file zfs_znode.h.

#define ZFS_NO_EXECS_DENIED 0x100

exec was given to everyone

Definition at line 87 of file zfs_znode.h.

#define ZFS_NO_OBJECT 0

no object id

Definition at line 368 of file zfs_znode.h.

#define ZFS_NODUMP 0x0000008000000000

Definition at line 56 of file zfs_znode.h.

#define ZFS_NOUNLINK 0x0000002000000000

Definition at line 54 of file zfs_znode.h.

#define ZFS_OBJ_HASH ( obj_num ) ((obj_num) & (ZFS_OBJ_MTX_SZ - 1))

Definition at line 297 of file zfs_znode.h.

#define ZFS_OBJ_HOLD_ENTER	(	zfsvfs,
		obj_num
	)	mutex_enter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))

Definition at line 300 of file zfs_znode.h.

#define ZFS_OBJ_HOLD_EXIT	(	zfsvfs,
		obj_num
	)	mutex_exit(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))

Definition at line 304 of file zfs_znode.h.

#define ZFS_OBJ_HOLD_TRYENTER	(	zfsvfs,
		obj_num
	)	mutex_tryenter(ZFS_OBJ_MUTEX((zfsvfs), (obj_num)))

Definition at line 302 of file zfs_znode.h.

#define ZFS_OBJ_MUTEX	(	zfsvfs,
		obj_num
	)	(&(zfsvfs)->z_hold_mtx[ZFS_OBJ_HASH(obj_num)])

Definition at line 298 of file zfs_znode.h.

#define ZFS_OFFLINE 0x0000100000000000

Definition at line 61 of file zfs_znode.h.

#define ZFS_OPAQUE 0x0000010000000000

Definition at line 57 of file zfs_znode.h.

#define ZFS_READONLY 0x0000000100000000

Definition at line 49 of file zfs_znode.h.

#define ZFS_REPARSE 0x0000080000000000

Definition at line 60 of file zfs_znode.h.

#define ZFS_ROOT_OBJ "ROOT"

Definition at line 134 of file zfs_znode.h.

#define ZFS_SA_ATTRS "SA_ATTRS"

Definition at line 138 of file zfs_znode.h.

#define ZFS_SHARES_DIR "SHARES"

Definition at line 137 of file zfs_znode.h.

#define ZFS_SPARSE 0x0000200000000000

Definition at line 62 of file zfs_znode.h.

#define ZFS_SYSTEM 0x0000000400000000

Definition at line 51 of file zfs_znode.h.

#define ZFS_TIME_DECODE	(	tp,
		stmp
	)

Value:

{                                               \
        (tp)->tv_sec = (time_t)(stmp)[0];               \
        (tp)->tv_nsec = (long)(stmp)[1];                \
}

Decode ZFS stored time value to a struct timespec.

Definition at line 320 of file zfs_znode.h.

#define ZFS_TIME_ENCODE	(	tp,
		stmp
	)

Value:

{                                               \
        (stmp)[0] = (uint64_t)(tp)->tv_sec;     \
        (stmp)[1] = (uint64_t)(tp)->tv_nsec;    \
}

Encode ZFS stored time value from a struct timespec.

Definition at line 311 of file zfs_znode.h.

#define ZFS_UNLINKED_SET "DELETE_QUEUE"

Definition at line 133 of file zfs_znode.h.

#define ZFS_VERIFY_ZP ( zp )

Value:

if ((zp)->z_sa_hdl == NULL) { \
                ZFS_EXIT((zp)->z_zfsvfs); \
                return (EIO); \
        } \

Verifies the znode is valid.

Definition at line 287 of file zfs_znode.h.

#define ZFS_XATTR 0x1

is an extended attribute

Definition at line 79 of file zfs_znode.h.

#define ZPL_VERSION_STR "VERSION"

Definition at line 135 of file zfs_znode.h.

#define ZTOV ( ZP ) ((ZP)->z_vnode)

Definition at line 265 of file zfs_znode.h.

Typedef Documentation

typedef struct zfs_dirlock zfs_dirlock_t

Directory Entry Locks.

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 znode znode_t

Function Documentation

dev_t zfs_cmpldev ( uint64_t dev )

Special cmpldev for ZFS private use.

Can't use standard cmpldev since it takes a long dev_t and compresses it to dev32_t in LP64. We need to do a compaction of a long dev_t to a dev32_t in ILP32.

Definition at line 586 of file zfs_znode.c.

void zfs_create_fs	(	objset_t *	os,
		cred_t *	cr,
		nvlist_t *	,
		dmu_tx_t *	tx
	)

Definition at line 1841 of file zfs_znode.c.

int zfs_create_op_tables ( )

int zfs_create_share_dir	(	zfsvfs_t *	zfsvfs,
		dmu_tx_t *	tx
	)

Definition at line 499 of file zfs_znode.c.

int zfs_freesp	(	znode_t *	zp,
		uint64_t	off,
		uint64_t	len,
		int	flag,
		boolean_t	log
	)

Free space in a file.

Parameters:

[in]	zp	znode of file to free data in.
[in]	off	start of range
[in]	len	end of range (0 => EOF)
[in]	flag	current file open mode flags.
[in]	log	TRUE if this action should be logged

Returns:: 0 on success, error code on failure

Definition at line 1768 of file zfs_znode.c.

int zfs_get_stats	(	objset_t *	os,
		nvlist_t *	nv
	)

int zfs_get_zplprop	(	objset_t *	os,
		zfs_prop_t	prop,
		uint64_t *	value
	)

Read a property stored within the master node.

Definition at line 2421 of file zfs_vfsops.c.

void zfs_grow_blocksize	(	znode_t *	zp,
		uint64_t	size,
		dmu_tx_t *	tx
	)

Grow the block size for a file.

Parameters:

[in]	zp	znode of file to free data in.
[in]	size	requested block size
[in]	tx	open transaction.

Note:: This function assumes that the znode is write locked.

Definition at line 1509 of file zfs_znode.c.

int zfs_init_fs	(	zfsvfs_t *	,
		znode_t **
	)

void zfs_log_acl	(	zilog_t *	zilog,
		dmu_tx_t *	tx,
		znode_t *	zp,
		vsecattr_t *	vsecp,
		zfs_fuid_info_t *	fuidp
	)

handles TX_ACL transactions.

Definition at line 623 of file zfs_log.c.

void zfs_log_create	(	zilog_t *	zilog,
		dmu_tx_t *	tx,
		uint64_t	txtype,
		znode_t *	dzp,
		znode_t *	zp,
		char *	name,
		vsecattr_t *	vsecp,
		zfs_fuid_info_t *	fuidp,
		vattr_t *	vap
	)

Handles TX_CREATE, TX_CREATE_ATTR, TX_MKDIR, TX_MKDIR_ATTR and TX_MKXATTR transactions.

TX_CREATE and TX_MKDIR are standard creates, but they may have FUID domain information appended prior to the name. In this case the uid/gid in the log record will be a log centric FUID.

TX_CREATE_ACL_ATTR and TX_MKDIR_ACL_ATTR handle special creates that may contain attributes, ACL and optional fuid information.

TX_CREATE_ACL and TX_MKDIR_ACL handle special creates that specify and ACL and normal users/groups in the ACEs.

There may be an optional xvattr attribute information similar to zfs_log_setattr.

Also, after the file name "domain" strings may be appended.

Definition at line 241 of file zfs_log.c.

int zfs_log_create_txtype	(	zil_create_t	,
		vsecattr_t *	vsecp,
		vattr_t *	vap
	)

Definition at line 69 of file zfs_log.c.

void zfs_log_link	(	zilog_t *	zilog,
		dmu_tx_t *	tx,
		uint64_t	txtype,
		znode_t *	dzp,
		znode_t *	zp,
		char *	name
	)

handles TX_LINK transactions.

Definition at line 378 of file zfs_log.c.

void zfs_log_remove	(	zilog_t *	zilog,
		dmu_tx_t *	tx,
		uint64_t	txtype,
		znode_t *	dzp,
		char *	name,
		uint64_t	foid
	)

handles both TX_REMOVE and TX_RMDIR transactions.

Definition at line 354 of file zfs_log.c.

void zfs_log_rename	(	zilog_t *	zilog,
		dmu_tx_t *	tx,
		uint64_t	txtype,
		znode_t *	sdzp,
		char *	sname,
		znode_t *	tdzp,
		char *	dname,
		znode_t *	szp
	)

handles TX_RENAME transactions.

Definition at line 433 of file zfs_log.c.

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
	)

handles TX_SETATTR transactions.

Definition at line 561 of file zfs_log.c.

void zfs_log_symlink	(	zilog_t *	zilog,
		dmu_tx_t *	tx,
		uint64_t	txtype,
		znode_t *	dzp,
		znode_t *	zp,
		char *	name,
		char *	link
	)

handles TX_SYMLINK transactions.

Definition at line 401 of file zfs_log.c.

void zfs_log_truncate	(	zilog_t *	zilog,
		dmu_tx_t *	tx,
		int	txtype,
		znode_t *	zp,
		uint64_t	off,
		uint64_t	len
	)

handles TX_TRUNCATE transactions.

Definition at line 538 of file zfs_log.c.

void zfs_log_write	(	zilog_t *	zilog,
		dmu_tx_t *	tx,
		int	txtype,
		znode_t *	zp,
		offset_t	off,
		ssize_t	len,
		int	ioflag
	)

Definition at line 461 of file zfs_log.c.

int zfs_obj_to_path	(	objset_t *	osp,
		uint64_t	obj,
		char *	buf,
		int	len
	)

Definition at line 2196 of file zfs_znode.c.

void zfs_remove_op_tables ( )

int zfs_rezget ( znode_t * )

Definition at line 1276 of file zfs_znode.c.

void zfs_set_dataprop ( objset_t * )

void zfs_tstamp_update_setup	(	znode_t *	,
		uint_t	,
		uint64_t	[2],
		uint64_t	[2],
		boolean_t
	)

Definition at line 1466 of file zfs_znode.c.

void zfs_upgrade	(	zfsvfs_t *	zfsvfs,
		dmu_tx_t *	tx
	)

void zfs_xvattr_set	(	znode_t *	zp,
		xvattr_t *	xvap,
		dmu_tx_t *	tx
	)

Update in-core attributes.

It is assumed the caller will be doing an sa_bulk_update to push the changes out

Definition at line 1051 of file zfs_znode.c.

int zfs_zget	(	zfsvfs_t *	,
		uint64_t	,
		znode_t **
	)

Definition at line 1142 of file zfs_znode.c.

void zfs_zinactive ( znode_t * )

Definition at line 1398 of file zfs_znode.c.

void zfs_znode_delete	(	znode_t *	,
		dmu_tx_t *
	)

Definition at line 1379 of file zfs_znode.c.

void zfs_znode_dmu_fini ( znode_t * )

Definition at line 623 of file zfs_znode.c.

void zfs_znode_fini ( void )

Definition at line 386 of file zfs_znode.c.

void zfs_znode_free ( znode_t * )

Definition at line 1444 of file zfs_znode.c.

void zfs_znode_init ( void )

Definition at line 372 of file zfs_znode.c.

Variable Documentation

zil_get_data_t zfs_get_data

zil_replay_func_t* zfs_replay_vector[TX_MAX_TYPE]

Callback vectors for replaying records.

Definition at line 1014 of file zfs_replay.c.

int zfsfstype

sys/zfs_znode.h File Reference

Data Structures

Defines

Typedefs

Functions

Variables

Detailed Description

Range locking rules

Define Documentation

Typedef Documentation

Function Documentation

Variable Documentation