xref: /illumos-gate/usr/src/uts/common/fs/zfs/zfs_sa.c (revision 8f2529de2d60d4fff8eb4d86f71b51584342934e)
10a586ceaSMark Shellenbaum /*
20a586ceaSMark Shellenbaum  * CDDL HEADER START
30a586ceaSMark Shellenbaum  *
40a586ceaSMark Shellenbaum  * The contents of this file are subject to the terms of the
50a586ceaSMark Shellenbaum  * Common Development and Distribution License (the "License").
60a586ceaSMark Shellenbaum  * You may not use this file except in compliance with the License.
70a586ceaSMark Shellenbaum  *
80a586ceaSMark Shellenbaum  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
90a586ceaSMark Shellenbaum  * or http://www.opensolaris.org/os/licensing.
100a586ceaSMark Shellenbaum  * See the License for the specific language governing permissions
110a586ceaSMark Shellenbaum  * and limitations under the License.
120a586ceaSMark Shellenbaum  *
130a586ceaSMark Shellenbaum  * When distributing Covered Code, include this CDDL HEADER in each
140a586ceaSMark Shellenbaum  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
150a586ceaSMark Shellenbaum  * If applicable, add the following below this CDDL HEADER, with the
160a586ceaSMark Shellenbaum  * fields enclosed by brackets "[]" replaced with your own identifying
170a586ceaSMark Shellenbaum  * information: Portions Copyright [yyyy] [name of copyright owner]
180a586ceaSMark Shellenbaum  *
190a586ceaSMark Shellenbaum  * CDDL HEADER END
200a586ceaSMark Shellenbaum  */
210a586ceaSMark Shellenbaum /*
22*8f2529deSMark Shellenbaum  * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved.
230a586ceaSMark Shellenbaum  */
240a586ceaSMark Shellenbaum 
250a586ceaSMark Shellenbaum #include <sys/types.h>
260a586ceaSMark Shellenbaum #include <sys/param.h>
270a586ceaSMark Shellenbaum #include <sys/vnode.h>
280a586ceaSMark Shellenbaum #include <sys/sa.h>
290a586ceaSMark Shellenbaum #include <sys/zfs_acl.h>
300a586ceaSMark Shellenbaum #include <sys/zfs_sa.h>
310a586ceaSMark Shellenbaum 
320a586ceaSMark Shellenbaum /*
330a586ceaSMark Shellenbaum  * ZPL attribute registration table.
340a586ceaSMark Shellenbaum  * Order of attributes doesn't matter
350a586ceaSMark Shellenbaum  * a unique value will be assigned for each
360a586ceaSMark Shellenbaum  * attribute that is file system specific
370a586ceaSMark Shellenbaum  *
380a586ceaSMark Shellenbaum  * This is just the set of ZPL attributes that this
390a586ceaSMark Shellenbaum  * version of ZFS deals with natively.  The file system
400a586ceaSMark Shellenbaum  * could have other attributes stored in files, but they will be
410a586ceaSMark Shellenbaum  * ignored.  The SA framework will preserve them, just that
420a586ceaSMark Shellenbaum  * this version of ZFS won't change or delete them.
430a586ceaSMark Shellenbaum  */
440a586ceaSMark Shellenbaum 
450a586ceaSMark Shellenbaum sa_attr_reg_t zfs_attr_table[ZPL_END+1] = {
460a586ceaSMark Shellenbaum 	{"ZPL_ATIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 0},
470a586ceaSMark Shellenbaum 	{"ZPL_MTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 1},
480a586ceaSMark Shellenbaum 	{"ZPL_CTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 2},
490a586ceaSMark Shellenbaum 	{"ZPL_CRTIME", sizeof (uint64_t) * 2, SA_UINT64_ARRAY, 3},
500a586ceaSMark Shellenbaum 	{"ZPL_GEN", sizeof (uint64_t), SA_UINT64_ARRAY, 4},
510a586ceaSMark Shellenbaum 	{"ZPL_MODE", sizeof (uint64_t), SA_UINT64_ARRAY, 5},
520a586ceaSMark Shellenbaum 	{"ZPL_SIZE", sizeof (uint64_t), SA_UINT64_ARRAY, 6},
530a586ceaSMark Shellenbaum 	{"ZPL_PARENT", sizeof (uint64_t), SA_UINT64_ARRAY, 7},
540a586ceaSMark Shellenbaum 	{"ZPL_LINKS", sizeof (uint64_t), SA_UINT64_ARRAY, 8},
550a586ceaSMark Shellenbaum 	{"ZPL_XATTR", sizeof (uint64_t), SA_UINT64_ARRAY, 9},
560a586ceaSMark Shellenbaum 	{"ZPL_RDEV", sizeof (uint64_t), SA_UINT64_ARRAY, 10},
570a586ceaSMark Shellenbaum 	{"ZPL_FLAGS", sizeof (uint64_t), SA_UINT64_ARRAY, 11},
580a586ceaSMark Shellenbaum 	{"ZPL_UID", sizeof (uint64_t), SA_UINT64_ARRAY, 12},
590a586ceaSMark Shellenbaum 	{"ZPL_GID", sizeof (uint64_t), SA_UINT64_ARRAY, 13},
600a586ceaSMark Shellenbaum 	{"ZPL_PAD", sizeof (uint64_t) * 4, SA_UINT64_ARRAY, 14},
610a586ceaSMark Shellenbaum 	{"ZPL_ZNODE_ACL", 88, SA_UINT8_ARRAY, 15},
620a586ceaSMark Shellenbaum 	{"ZPL_DACL_COUNT", sizeof (uint64_t), SA_UINT64_ARRAY, 0},
630a586ceaSMark Shellenbaum 	{"ZPL_SYMLINK", 0, SA_UINT8_ARRAY, 0},
640a586ceaSMark Shellenbaum 	{"ZPL_SCANSTAMP", 32, SA_UINT8_ARRAY, 0},
650a586ceaSMark Shellenbaum 	{"ZPL_DACL_ACES", 0, SA_ACL, 0},
660a586ceaSMark Shellenbaum 	{NULL, 0, 0, 0}
670a586ceaSMark Shellenbaum };
680a586ceaSMark Shellenbaum 
690a586ceaSMark Shellenbaum #ifdef _KERNEL
700a586ceaSMark Shellenbaum 
710a586ceaSMark Shellenbaum int
720a586ceaSMark Shellenbaum zfs_sa_readlink(znode_t *zp, uio_t *uio)
730a586ceaSMark Shellenbaum {
740a586ceaSMark Shellenbaum 	dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
750a586ceaSMark Shellenbaum 	size_t bufsz;
760a586ceaSMark Shellenbaum 	int error;
770a586ceaSMark Shellenbaum 
780a586ceaSMark Shellenbaum 	bufsz = zp->z_size;
79faba5ca1SMark Shellenbaum 	if (bufsz + ZFS_OLD_ZNODE_PHYS_SIZE <= db->db_size) {
800a586ceaSMark Shellenbaum 		error = uiomove((caddr_t)db->db_data +
810a586ceaSMark Shellenbaum 		    ZFS_OLD_ZNODE_PHYS_SIZE,
820a586ceaSMark Shellenbaum 		    MIN((size_t)bufsz, uio->uio_resid), UIO_READ, uio);
830a586ceaSMark Shellenbaum 	} else {
840a586ceaSMark Shellenbaum 		dmu_buf_t *dbp;
850a586ceaSMark Shellenbaum 		if ((error = dmu_buf_hold(zp->z_zfsvfs->z_os, zp->z_id,
860a586ceaSMark Shellenbaum 		    0, FTAG, &dbp)) == 0) {
870a586ceaSMark Shellenbaum 			error = uiomove(dbp->db_data,
880a586ceaSMark Shellenbaum 			    MIN((size_t)bufsz, uio->uio_resid), UIO_READ, uio);
890a586ceaSMark Shellenbaum 			dmu_buf_rele(dbp, FTAG);
900a586ceaSMark Shellenbaum 		}
910a586ceaSMark Shellenbaum 	}
920a586ceaSMark Shellenbaum 	return (error);
930a586ceaSMark Shellenbaum }
940a586ceaSMark Shellenbaum 
950a586ceaSMark Shellenbaum void
960a586ceaSMark Shellenbaum zfs_sa_symlink(znode_t *zp, char *link, int len, dmu_tx_t *tx)
970a586ceaSMark Shellenbaum {
980a586ceaSMark Shellenbaum 	dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
990a586ceaSMark Shellenbaum 
1000a586ceaSMark Shellenbaum 	if (ZFS_OLD_ZNODE_PHYS_SIZE + len <= dmu_bonus_max()) {
1010a586ceaSMark Shellenbaum 		VERIFY(dmu_set_bonus(db,
1020a586ceaSMark Shellenbaum 		    len + ZFS_OLD_ZNODE_PHYS_SIZE, tx) == 0);
1030a586ceaSMark Shellenbaum 		if (len) {
1040a586ceaSMark Shellenbaum 			bcopy(link, (caddr_t)db->db_data +
1050a586ceaSMark Shellenbaum 			    ZFS_OLD_ZNODE_PHYS_SIZE, len);
1060a586ceaSMark Shellenbaum 		}
1070a586ceaSMark Shellenbaum 	} else {
1080a586ceaSMark Shellenbaum 		dmu_buf_t *dbp;
1090a586ceaSMark Shellenbaum 
1100a586ceaSMark Shellenbaum 		zfs_grow_blocksize(zp, len, tx);
1110a586ceaSMark Shellenbaum 		VERIFY(0 == dmu_buf_hold(zp->z_zfsvfs->z_os,
1120a586ceaSMark Shellenbaum 		    zp->z_id, 0, FTAG, &dbp));
1130a586ceaSMark Shellenbaum 
1140a586ceaSMark Shellenbaum 		dmu_buf_will_dirty(dbp, tx);
1150a586ceaSMark Shellenbaum 
1160a586ceaSMark Shellenbaum 		ASSERT3U(len, <=, dbp->db_size);
1170a586ceaSMark Shellenbaum 		bcopy(link, dbp->db_data, len);
1180a586ceaSMark Shellenbaum 		dmu_buf_rele(dbp, FTAG);
1190a586ceaSMark Shellenbaum 	}
1200a586ceaSMark Shellenbaum }
1210a586ceaSMark Shellenbaum 
1220a586ceaSMark Shellenbaum void
1230a586ceaSMark Shellenbaum zfs_sa_get_scanstamp(znode_t *zp, xvattr_t *xvap)
1240a586ceaSMark Shellenbaum {
1250a586ceaSMark Shellenbaum 	zfsvfs_t *zfsvfs = zp->z_zfsvfs;
1260a586ceaSMark Shellenbaum 	xoptattr_t *xoap;
1270a586ceaSMark Shellenbaum 
1280a586ceaSMark Shellenbaum 	VERIFY((xoap = xva_getxoptattr(xvap)) != NULL);
1290a586ceaSMark Shellenbaum 	if (zp->z_is_sa) {
1300a586ceaSMark Shellenbaum 		if (sa_lookup(zp->z_sa_hdl, SA_ZPL_SCANSTAMP(zfsvfs),
1310a586ceaSMark Shellenbaum 		    &xoap->xoa_av_scanstamp,
1320a586ceaSMark Shellenbaum 		    sizeof (xoap->xoa_av_scanstamp)) != 0)
1330a586ceaSMark Shellenbaum 			return;
1340a586ceaSMark Shellenbaum 	} else {
1350a586ceaSMark Shellenbaum 		dmu_object_info_t doi;
1360a586ceaSMark Shellenbaum 		dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
1370a586ceaSMark Shellenbaum 		int len;
1380a586ceaSMark Shellenbaum 
1390a586ceaSMark Shellenbaum 		if (!(zp->z_pflags & ZFS_BONUS_SCANSTAMP))
1400a586ceaSMark Shellenbaum 			return;
1410a586ceaSMark Shellenbaum 
1420a586ceaSMark Shellenbaum 		sa_object_info(zp->z_sa_hdl, &doi);
1430a586ceaSMark Shellenbaum 		len = sizeof (xoap->xoa_av_scanstamp) +
1440a586ceaSMark Shellenbaum 		    ZFS_OLD_ZNODE_PHYS_SIZE;
1450a586ceaSMark Shellenbaum 
1460a586ceaSMark Shellenbaum 		if (len <= doi.doi_bonus_size) {
1470a586ceaSMark Shellenbaum 			(void) memcpy(xoap->xoa_av_scanstamp,
1480a586ceaSMark Shellenbaum 			    (caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE,
1490a586ceaSMark Shellenbaum 			    sizeof (xoap->xoa_av_scanstamp));
1500a586ceaSMark Shellenbaum 		}
1510a586ceaSMark Shellenbaum 	}
1520a586ceaSMark Shellenbaum 	XVA_SET_RTN(xvap, XAT_AV_SCANSTAMP);
1530a586ceaSMark Shellenbaum }
1540a586ceaSMark Shellenbaum 
1550a586ceaSMark Shellenbaum void
1560a586ceaSMark Shellenbaum zfs_sa_set_scanstamp(znode_t *zp, xvattr_t *xvap, dmu_tx_t *tx)
1570a586ceaSMark Shellenbaum {
1580a586ceaSMark Shellenbaum 	zfsvfs_t *zfsvfs = zp->z_zfsvfs;
1590a586ceaSMark Shellenbaum 	xoptattr_t *xoap;
1600a586ceaSMark Shellenbaum 
1610a586ceaSMark Shellenbaum 	VERIFY((xoap = xva_getxoptattr(xvap)) != NULL);
1620a586ceaSMark Shellenbaum 	if (zp->z_is_sa)
1630a586ceaSMark Shellenbaum 		VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_SCANSTAMP(zfsvfs),
1640a586ceaSMark Shellenbaum 		    &xoap->xoa_av_scanstamp,
1650a586ceaSMark Shellenbaum 		    sizeof (xoap->xoa_av_scanstamp), tx));
1660a586ceaSMark Shellenbaum 	else {
1670a586ceaSMark Shellenbaum 		dmu_object_info_t doi;
1680a586ceaSMark Shellenbaum 		dmu_buf_t *db = sa_get_db(zp->z_sa_hdl);
1690a586ceaSMark Shellenbaum 		int len;
1700a586ceaSMark Shellenbaum 
1710a586ceaSMark Shellenbaum 		sa_object_info(zp->z_sa_hdl, &doi);
1720a586ceaSMark Shellenbaum 		len = sizeof (xoap->xoa_av_scanstamp) +
1730a586ceaSMark Shellenbaum 		    ZFS_OLD_ZNODE_PHYS_SIZE;
1740a586ceaSMark Shellenbaum 		if (len > doi.doi_bonus_size)
1750a586ceaSMark Shellenbaum 			VERIFY(dmu_set_bonus(db, len, tx) == 0);
1760a586ceaSMark Shellenbaum 		(void) memcpy((caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE,
1770a586ceaSMark Shellenbaum 		    xoap->xoa_av_scanstamp, sizeof (xoap->xoa_av_scanstamp));
1780a586ceaSMark Shellenbaum 
1790a586ceaSMark Shellenbaum 		zp->z_pflags |= ZFS_BONUS_SCANSTAMP;
1800a586ceaSMark Shellenbaum 		VERIFY(0 == sa_update(zp->z_sa_hdl, SA_ZPL_FLAGS(zfsvfs),
1810a586ceaSMark Shellenbaum 		    &zp->z_pflags, sizeof (uint64_t), tx));
1820a586ceaSMark Shellenbaum 	}
1830a586ceaSMark Shellenbaum }
1840a586ceaSMark Shellenbaum 
1850a586ceaSMark Shellenbaum /*
1860a586ceaSMark Shellenbaum  * I'm not convinced we should do any of this upgrade.
1870a586ceaSMark Shellenbaum  * since the SA code can read both old/new znode formats
1880a586ceaSMark Shellenbaum  * with probably little to know performance difference.
1890a586ceaSMark Shellenbaum  *
1900a586ceaSMark Shellenbaum  * All new files will be created with the new format.
1910a586ceaSMark Shellenbaum  */
1920a586ceaSMark Shellenbaum 
1930a586ceaSMark Shellenbaum void
1940a586ceaSMark Shellenbaum zfs_sa_upgrade(sa_handle_t *hdl, dmu_tx_t *tx)
1950a586ceaSMark Shellenbaum {
1960a586ceaSMark Shellenbaum 	dmu_buf_t *db = sa_get_db(hdl);
1970a586ceaSMark Shellenbaum 	znode_t *zp = sa_get_userdata(hdl);
1980a586ceaSMark Shellenbaum 	zfsvfs_t *zfsvfs = zp->z_zfsvfs;
1990a586ceaSMark Shellenbaum 	sa_bulk_attr_t bulk[20];
2000a586ceaSMark Shellenbaum 	int count = 0;
2010a586ceaSMark Shellenbaum 	sa_bulk_attr_t sa_attrs[20] = { 0 };
2020a586ceaSMark Shellenbaum 	zfs_acl_locator_cb_t locate = { 0 };
2030a586ceaSMark Shellenbaum 	uint64_t uid, gid, mode, rdev, xattr, parent;
2040a586ceaSMark Shellenbaum 	uint64_t crtime[2], mtime[2], ctime[2];
2050a586ceaSMark Shellenbaum 	zfs_acl_phys_t znode_acl;
2060a586ceaSMark Shellenbaum 	char *slink = NULL;
2070a586ceaSMark Shellenbaum 	char scanstamp[AV_SCANSTAMP_SZ];
2080a586ceaSMark Shellenbaum 
2090a586ceaSMark Shellenbaum 	/*
2100a586ceaSMark Shellenbaum 	 * No upgrade if ACL isn't cached
2110a586ceaSMark Shellenbaum 	 * since we won't know which locks are held
2120a586ceaSMark Shellenbaum 	 * and ready the ACL would require special "locked"
2130a586ceaSMark Shellenbaum 	 * interfaces that would be messy
2140a586ceaSMark Shellenbaum 	 */
2150a586ceaSMark Shellenbaum 	if (zp->z_acl_cached == NULL)
2160a586ceaSMark Shellenbaum 		return;
2170a586ceaSMark Shellenbaum 
2180a586ceaSMark Shellenbaum 	/* First do a bulk query of the attributes that aren't cached */
2190a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MTIME(zfsvfs), NULL, &mtime, 16);
2200a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CTIME(zfsvfs), NULL, &ctime, 16);
2210a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_CRTIME(zfsvfs), NULL, &crtime, 16);
2220a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8);
2230a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_PARENT(zfsvfs), NULL, &parent, 8);
2240a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_XATTR(zfsvfs), NULL, &xattr, 8);
2250a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_RDEV(zfsvfs), NULL, &rdev, 8);
2260a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_UID(zfsvfs), NULL, &uid, 8);
2270a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_GID(zfsvfs), NULL, &gid, 8);
2280a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(bulk, count, SA_ZPL_ZNODE_ACL(zfsvfs), NULL,
2290a586ceaSMark Shellenbaum 	    &znode_acl, 88);
2300a586ceaSMark Shellenbaum 
2310a586ceaSMark Shellenbaum 	if (sa_bulk_lookup_locked(hdl, bulk, count) != 0)
2320a586ceaSMark Shellenbaum 		return;
2330a586ceaSMark Shellenbaum 
2340a586ceaSMark Shellenbaum 
2350a586ceaSMark Shellenbaum 	/*
2360a586ceaSMark Shellenbaum 	 * While the order here doesn't matter its best to try and organize
2370a586ceaSMark Shellenbaum 	 * it is such a way to pick up an already existing layout number
2380a586ceaSMark Shellenbaum 	 */
2390a586ceaSMark Shellenbaum 	count = 0;
2400a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_MODE(zfsvfs), NULL, &mode, 8);
2410a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_SIZE(zfsvfs), NULL,
2420a586ceaSMark Shellenbaum 	    &zp->z_size, 8);
2430a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_GEN(zfsvfs),
2440a586ceaSMark Shellenbaum 	    NULL, &zp->z_gen, 8);
2450a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_UID(zfsvfs), NULL, &uid, 8);
2460a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_GID(zfsvfs), NULL, &gid, 8);
2470a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_PARENT(zfsvfs),
2480a586ceaSMark Shellenbaum 	    NULL, &parent, 8);
2490a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_FLAGS(zfsvfs), NULL,
2500a586ceaSMark Shellenbaum 	    &zp->z_pflags, 8);
2510a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_ATIME(zfsvfs), NULL,
2520a586ceaSMark Shellenbaum 	    zp->z_atime, 16);
2530a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_MTIME(zfsvfs), NULL,
2540a586ceaSMark Shellenbaum 	    &mtime, 16);
2550a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_CTIME(zfsvfs), NULL,
2560a586ceaSMark Shellenbaum 	    &ctime, 16);
2570a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_CRTIME(zfsvfs), NULL,
2580a586ceaSMark Shellenbaum 	    &crtime, 16);
2590a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_LINKS(zfsvfs), NULL,
2600a586ceaSMark Shellenbaum 	    &zp->z_links, 8);
2610a586ceaSMark Shellenbaum 	if (zp->z_vnode->v_type == VBLK || zp->z_vnode->v_type == VCHR)
2620a586ceaSMark Shellenbaum 		SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_RDEV(zfsvfs), NULL,
2630a586ceaSMark Shellenbaum 		    &rdev, 8);
2640a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_DACL_COUNT(zfsvfs), NULL,
2650a586ceaSMark Shellenbaum 	    &zp->z_acl_cached->z_acl_count, 8);
2660a586ceaSMark Shellenbaum 
2670a586ceaSMark Shellenbaum 	if (zp->z_acl_cached->z_version < ZFS_ACL_VERSION_FUID)
2680a586ceaSMark Shellenbaum 		zfs_acl_xform(zp, zp->z_acl_cached, CRED());
2690a586ceaSMark Shellenbaum 
2700a586ceaSMark Shellenbaum 	locate.cb_aclp = zp->z_acl_cached;
2710a586ceaSMark Shellenbaum 	SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_DACL_ACES(zfsvfs),
2720a586ceaSMark Shellenbaum 	    zfs_acl_data_locator, &locate, zp->z_acl_cached->z_acl_bytes);
2730a586ceaSMark Shellenbaum 	if (xattr)
2740a586ceaSMark Shellenbaum 		SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_RDEV(zfsvfs),
2750a586ceaSMark Shellenbaum 		    NULL, &rdev, 8);
2760a586ceaSMark Shellenbaum 
2770a586ceaSMark Shellenbaum 	/*
2780a586ceaSMark Shellenbaum 	 * is it a symlink ?
2790a586ceaSMark Shellenbaum 	 *
2800a586ceaSMark Shellenbaum 	 * this will probably never be exercised since we won't
2810a586ceaSMark Shellenbaum 	 * have the cached ACL.
2820a586ceaSMark Shellenbaum 	 */
2830a586ceaSMark Shellenbaum 	if (ZTOV(zp)->v_type == VLNK) {
2840a586ceaSMark Shellenbaum 		slink = kmem_zalloc(zp->z_size + 1, KM_SLEEP);
2850a586ceaSMark Shellenbaum 		if (zp->z_size + ZFS_OLD_ZNODE_PHYS_SIZE)
2860a586ceaSMark Shellenbaum 			bcopy((caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE,
2870a586ceaSMark Shellenbaum 			    slink, zp->z_size);
2880a586ceaSMark Shellenbaum 		else {
2890a586ceaSMark Shellenbaum 			dmu_buf_t *dbp;
2900a586ceaSMark Shellenbaum 			if (dmu_buf_hold(zfsvfs->z_os, zp->z_id, 0,
291*8f2529deSMark Shellenbaum 			    FTAG, &dbp)) {
292*8f2529deSMark Shellenbaum 				kmem_free(slink, zp->z_size + 1);
2930a586ceaSMark Shellenbaum 				return;
294*8f2529deSMark Shellenbaum 			}
2950a586ceaSMark Shellenbaum 			bcopy(dbp->db_data, slink, zp->z_size);
2960a586ceaSMark Shellenbaum 			dmu_buf_rele(dbp, FTAG);
2970a586ceaSMark Shellenbaum 		}
2980a586ceaSMark Shellenbaum 		SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_SYMLINK(zfsvfs),
2990a586ceaSMark Shellenbaum 		    NULL, slink, zp->z_size);
3000a586ceaSMark Shellenbaum 	}
3010a586ceaSMark Shellenbaum 
3020a586ceaSMark Shellenbaum 	/* if scanstamp then add scanstamp */
3030a586ceaSMark Shellenbaum 
3040a586ceaSMark Shellenbaum 	if (zp->z_pflags & ZFS_BONUS_SCANSTAMP) {
3050a586ceaSMark Shellenbaum 		bcopy((caddr_t)db->db_data + ZFS_OLD_ZNODE_PHYS_SIZE,
3060a586ceaSMark Shellenbaum 		    scanstamp, AV_SCANSTAMP_SZ);
3070a586ceaSMark Shellenbaum 		SA_ADD_BULK_ATTR(sa_attrs, count, SA_ZPL_SCANSTAMP(zfsvfs),
3080a586ceaSMark Shellenbaum 		    NULL, scanstamp, AV_SCANSTAMP_SZ);
3090a586ceaSMark Shellenbaum 		zp->z_pflags &= ~ZFS_BONUS_SCANSTAMP;
3100a586ceaSMark Shellenbaum 	}
3110a586ceaSMark Shellenbaum 
3120a586ceaSMark Shellenbaum 	VERIFY(dmu_set_bonustype(db, DMU_OT_SA, tx) == 0);
3130a586ceaSMark Shellenbaum 	VERIFY(sa_replace_all_by_template_locked(hdl, sa_attrs,
3140a586ceaSMark Shellenbaum 	    count, tx) == 0);
3150a586ceaSMark Shellenbaum 	if (znode_acl.z_acl_extern_obj)
3160a586ceaSMark Shellenbaum 		VERIFY(0 == dmu_object_free(zfsvfs->z_os,
3170a586ceaSMark Shellenbaum 		    znode_acl.z_acl_extern_obj, tx));
3180a586ceaSMark Shellenbaum 
3190a586ceaSMark Shellenbaum 	zp->z_is_sa = B_TRUE;
3200a586ceaSMark Shellenbaum 	if (slink)
3210a586ceaSMark Shellenbaum 		kmem_free(slink, zp->z_size + 1);
3220a586ceaSMark Shellenbaum 
3230a586ceaSMark Shellenbaum }
3240a586ceaSMark Shellenbaum 
3250a586ceaSMark Shellenbaum void
3260a586ceaSMark Shellenbaum zfs_sa_upgrade_txholds(dmu_tx_t *tx, znode_t *zp)
3270a586ceaSMark Shellenbaum {
3280a586ceaSMark Shellenbaum 	if (!zp->z_zfsvfs->z_use_sa || zp->z_is_sa)
3290a586ceaSMark Shellenbaum 		return;
3300a586ceaSMark Shellenbaum 
3310a586ceaSMark Shellenbaum 	ASSERT(!zp->z_is_sa);
3320a586ceaSMark Shellenbaum 
3330a586ceaSMark Shellenbaum 	dmu_tx_hold_sa(tx, zp->z_sa_hdl, B_TRUE);
3340a586ceaSMark Shellenbaum 
3350a586ceaSMark Shellenbaum 	if (ZFS_EXTERNAL_ACL(zp)) {
3360a586ceaSMark Shellenbaum 		dmu_tx_hold_free(tx, ZFS_EXTERNAL_ACL(zp), 0,
3370a586ceaSMark Shellenbaum 		    DMU_OBJECT_END);
3380a586ceaSMark Shellenbaum 	}
3390a586ceaSMark Shellenbaum }
3400a586ceaSMark Shellenbaum 
3410a586ceaSMark Shellenbaum #endif
342