Rebase to OpenSolaris b103, in the process we are removing any code which did not originate from the OpenSolaris source. These changes will be reintroduced in topic branches for easier tracking

1 files changed, 878 insertions, 0 deletions

diff --git a/zfs/lib/libzpool/zfs_replay.c b/zfs/lib/libzpool/zfs_replay.c
new file mode 100644
index 000000000..85b79703a
--- /dev/null
+++ b/zfs/lib/libzpool/zfs_replay.c
@@ -0,0 +1,878 @@
+/*
+ * 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 2008 Sun Microsystems, Inc.  All rights reserved.
+ * Use is subject to license terms.
+ */
+
+#pragma ident	"%Z%%M%	%I%	%E% SMI"
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/sysmacros.h>
+#include <sys/cmn_err.h>
+#include <sys/kmem.h>
+#include <sys/thread.h>
+#include <sys/file.h>
+#include <sys/fcntl.h>
+#include <sys/vfs.h>
+#include <sys/fs/zfs.h>
+#include <sys/zfs_znode.h>
+#include <sys/zfs_dir.h>
+#include <sys/zfs_acl.h>
+#include <sys/zfs_fuid.h>
+#include <sys/spa.h>
+#include <sys/zil.h>
+#include <sys/byteorder.h>
+#include <sys/stat.h>
+#include <sys/mode.h>
+#include <sys/acl.h>
+#include <sys/atomic.h>
+#include <sys/cred.h>
+
+/*
+ * Functions to replay ZFS intent log (ZIL) records
+ * The functions are called through a function vector (zfs_replay_vector)
+ * which is indexed by the transaction type.
+ */
+
+static void
+zfs_init_vattr(vattr_t *vap, uint64_t mask, uint64_t mode,
+	uint64_t uid, uint64_t gid, uint64_t rdev, uint64_t nodeid)
+{
+	bzero(vap, sizeof (*vap));
+	vap->va_mask = (uint_t)mask;
+	vap->va_type = IFTOVT(mode);
+	vap->va_mode = mode & MODEMASK;
+	vap->va_uid = (uid_t)(IS_EPHEMERAL(uid)) ? -1 : uid;
+	vap->va_gid = (gid_t)(IS_EPHEMERAL(gid)) ? -1 : gid;
+	vap->va_rdev = zfs_cmpldev(rdev);
+	vap->va_nodeid = nodeid;
+}
+
+/* ARGSUSED */
+static int
+zfs_replay_error(zfsvfs_t *zfsvfs, lr_t *lr, boolean_t byteswap)
+{
+	return (ENOTSUP);
+}
+
+static void
+zfs_replay_xvattr(lr_attr_t *lrattr, xvattr_t *xvap)
+{
+	xoptattr_t *xoap = NULL;
+	uint64_t *attrs;
+	uint64_t *crtime;
+	uint32_t *bitmap;
+	void *scanstamp;
+	int i;
+
+	xvap->xva_vattr.va_mask |= AT_XVATTR;
+	if ((xoap = xva_getxoptattr(xvap)) == NULL) {
+		xvap->xva_vattr.va_mask &= ~AT_XVATTR; /* shouldn't happen */
+		return;
+	}
+
+	ASSERT(lrattr->lr_attr_masksize == xvap->xva_mapsize);
+
+	bitmap = &lrattr->lr_attr_bitmap;
+	for (i = 0; i != lrattr->lr_attr_masksize; i++, bitmap++)
+		xvap->xva_reqattrmap[i] = *bitmap;
+
+	attrs = (uint64_t *)(lrattr + lrattr->lr_attr_masksize - 1);
+	crtime = attrs + 1;
+	scanstamp = (caddr_t)(crtime + 2);
+
+	if (XVA_ISSET_REQ(xvap, XAT_HIDDEN))
+		xoap->xoa_hidden = ((*attrs & XAT0_HIDDEN) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_SYSTEM))
+		xoap->xoa_system = ((*attrs & XAT0_SYSTEM) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE))
+		xoap->xoa_archive = ((*attrs & XAT0_ARCHIVE) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_READONLY))
+		xoap->xoa_readonly = ((*attrs & XAT0_READONLY) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE))
+		xoap->xoa_immutable = ((*attrs & XAT0_IMMUTABLE) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK))
+		xoap->xoa_nounlink = ((*attrs & XAT0_NOUNLINK) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY))
+		xoap->xoa_appendonly = ((*attrs & XAT0_APPENDONLY) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_NODUMP))
+		xoap->xoa_nodump = ((*attrs & XAT0_NODUMP) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_OPAQUE))
+		xoap->xoa_opaque = ((*attrs & XAT0_OPAQUE) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED))
+		xoap->xoa_av_modified = ((*attrs & XAT0_AV_MODIFIED) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED))
+		xoap->xoa_av_quarantined =
+		    ((*attrs & XAT0_AV_QUARANTINED) != 0);
+	if (XVA_ISSET_REQ(xvap, XAT_CREATETIME))
+		ZFS_TIME_DECODE(&xoap->xoa_createtime, crtime);
+	if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP))
+		bcopy(scanstamp, xoap->xoa_av_scanstamp, AV_SCANSTAMP_SZ);
+}
+
+static int
+zfs_replay_domain_cnt(uint64_t uid, uint64_t gid)
+{
+	uint64_t uid_idx;
+	uint64_t gid_idx;
+	int domcnt = 0;
+
+	uid_idx = FUID_INDEX(uid);
+	gid_idx = FUID_INDEX(gid);
+	if (uid_idx)
+		domcnt++;
+	if (gid_idx > 0 && gid_idx != uid_idx)
+		domcnt++;
+
+	return (domcnt);
+}
+
+static void *
+zfs_replay_fuid_domain_common(zfs_fuid_info_t *fuid_infop, void *start,
+    int domcnt)
+{
+	int i;
+
+	for (i = 0; i != domcnt; i++) {
+		fuid_infop->z_domain_table[i] = start;
+		start = (caddr_t)start + strlen(start) + 1;
+	}
+
+	return (start);
+}
+
+/*
+ * Set the uid/gid in the fuid_info structure.
+ */
+static void
+zfs_replay_fuid_ugid(zfs_fuid_info_t *fuid_infop, uint64_t uid, uint64_t gid)
+{
+	/*
+	 * If owner or group are log specific FUIDs then slurp up
+	 * domain information and build zfs_fuid_info_t
+	 */
+	if (IS_EPHEMERAL(uid))
+		fuid_infop->z_fuid_owner = uid;
+
+	if (IS_EPHEMERAL(gid))
+		fuid_infop->z_fuid_group = gid;
+}
+
+/*
+ * Load fuid domains into fuid_info_t
+ */
+static zfs_fuid_info_t *
+zfs_replay_fuid_domain(void *buf, void **end, uint64_t uid, uint64_t gid)
+{
+	int domcnt;
+
+	zfs_fuid_info_t *fuid_infop;
+
+	fuid_infop = zfs_fuid_info_alloc();
+
+	domcnt = zfs_replay_domain_cnt(uid, gid);
+
+	if (domcnt == 0)
+		return (fuid_infop);
+
+	fuid_infop->z_domain_table =
+	    kmem_zalloc(domcnt * sizeof (char **), KM_SLEEP);
+
+	zfs_replay_fuid_ugid(fuid_infop, uid, gid);
+
+	fuid_infop->z_domain_cnt = domcnt;
+	*end = zfs_replay_fuid_domain_common(fuid_infop, buf, domcnt);
+	return (fuid_infop);
+}
+
+/*
+ * load zfs_fuid_t's and fuid_domains into fuid_info_t
+ */
+static zfs_fuid_info_t *
+zfs_replay_fuids(void *start, void **end, int idcnt, int domcnt, uint64_t uid,
+    uint64_t gid)
+{
+	uint64_t *log_fuid = (uint64_t *)start;
+	zfs_fuid_info_t *fuid_infop;
+	int i;
+
+	fuid_infop = zfs_fuid_info_alloc();
+	fuid_infop->z_domain_cnt = domcnt;
+
+	fuid_infop->z_domain_table =
+	    kmem_zalloc(domcnt * sizeof (char **), KM_SLEEP);
+
+	for (i = 0; i != idcnt; i++) {
+		zfs_fuid_t *zfuid;
+
+		zfuid = kmem_alloc(sizeof (zfs_fuid_t), KM_SLEEP);
+		zfuid->z_logfuid = *log_fuid;
+		zfuid->z_id = -1;
+		zfuid->z_domidx = 0;
+		list_insert_tail(&fuid_infop->z_fuids, zfuid);
+		log_fuid++;
+	}
+
+	zfs_replay_fuid_ugid(fuid_infop, uid, gid);
+
+	*end = zfs_replay_fuid_domain_common(fuid_infop, log_fuid, domcnt);
+	return (fuid_infop);
+}
+
+static void
+zfs_replay_swap_attrs(lr_attr_t *lrattr)
+{
+	/* swap the lr_attr structure */
+	byteswap_uint32_array(lrattr, sizeof (*lrattr));
+	/* swap the bitmap */
+	byteswap_uint32_array(lrattr + 1, (lrattr->lr_attr_masksize - 1) *
+	    sizeof (uint32_t));
+	/* swap the attributes, create time + 64 bit word for attributes */
+	byteswap_uint64_array((caddr_t)(lrattr + 1) + (sizeof (uint32_t) *
+	    (lrattr->lr_attr_masksize - 1)), 3 * sizeof (uint64_t));
+}
+
+/*
+ * Replay file create with optional ACL, xvattr information as well
+ * as option FUID information.
+ */
+static int
+zfs_replay_create_acl(zfsvfs_t *zfsvfs,
+    lr_acl_create_t *lracl, boolean_t byteswap)
+{
+	char *name = NULL;		/* location determined later */
+	lr_create_t *lr = (lr_create_t *)lracl;
+	znode_t *dzp;
+	vnode_t *vp = NULL;
+	xvattr_t xva;
+	int vflg = 0;
+	vsecattr_t vsec = { 0 };
+	lr_attr_t *lrattr;
+	void *aclstart;
+	void *fuidstart;
+	size_t xvatlen = 0;
+	uint64_t txtype;
+	int error;
+
+	if (byteswap) {
+		byteswap_uint64_array(lracl, sizeof (*lracl));
+		txtype = (int)lr->lr_common.lrc_txtype;
+		if (txtype == TX_CREATE_ACL_ATTR ||
+		    txtype == TX_MKDIR_ACL_ATTR) {
+			lrattr = (lr_attr_t *)(caddr_t)(lracl + 1);
+			zfs_replay_swap_attrs(lrattr);
+			xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
+		}
+
+		aclstart = (caddr_t)(lracl + 1) + xvatlen;
+		zfs_ace_byteswap(aclstart, lracl->lr_acl_bytes, B_FALSE);
+		/* swap fuids */
+		if (lracl->lr_fuidcnt) {
+			byteswap_uint64_array((caddr_t)aclstart +
+			    ZIL_ACE_LENGTH(lracl->lr_acl_bytes),
+			    lracl->lr_fuidcnt * sizeof (uint64_t));
+		}
+	}
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0)
+		return (error);
+
+	xva_init(&xva);
+	zfs_init_vattr(&xva.xva_vattr, AT_TYPE | AT_MODE | AT_UID | AT_GID,
+	    lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, lr->lr_foid);
+
+	/*
+	 * All forms of zfs create (create, mkdir, mkxattrdir, symlink)
+	 * eventually end up in zfs_mknode(), which assigns the object's
+	 * creation time and generation number.  The generic VOP_CREATE()
+	 * doesn't have either concept, so we smuggle the values inside
+	 * the vattr's otherwise unused va_ctime and va_nblocks fields.
+	 */
+	ZFS_TIME_DECODE(&xva.xva_vattr.va_ctime, lr->lr_crtime);
+	xva.xva_vattr.va_nblocks = lr->lr_gen;
+
+	error = dmu_object_info(zfsvfs->z_os, lr->lr_foid, NULL);
+	if (error != ENOENT)
+		goto bail;
+
+	if (lr->lr_common.lrc_txtype & TX_CI)
+		vflg |= FIGNORECASE;
+	switch ((int)lr->lr_common.lrc_txtype) {
+	case TX_CREATE_ACL:
+		aclstart = (caddr_t)(lracl + 1);
+		fuidstart = (caddr_t)aclstart +
+		    ZIL_ACE_LENGTH(lracl->lr_acl_bytes);
+		zfsvfs->z_fuid_replay = zfs_replay_fuids(fuidstart,
+		    (void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt,
+		    lr->lr_uid, lr->lr_gid);
+		/*FALLTHROUGH*/
+	case TX_CREATE_ACL_ATTR:
+		if (name == NULL) {
+			lrattr = (lr_attr_t *)(caddr_t)(lracl + 1);
+			xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
+			xva.xva_vattr.va_mask |= AT_XVATTR;
+			zfs_replay_xvattr(lrattr, &xva);
+		}
+		vsec.vsa_mask = VSA_ACE | VSA_ACE_ACLFLAGS;
+		vsec.vsa_aclentp = (caddr_t)(lracl + 1) + xvatlen;
+		vsec.vsa_aclcnt = lracl->lr_aclcnt;
+		vsec.vsa_aclentsz = lracl->lr_acl_bytes;
+		vsec.vsa_aclflags = lracl->lr_acl_flags;
+		if (zfsvfs->z_fuid_replay == NULL) {
+			fuidstart = (caddr_t)(lracl + 1) + xvatlen +
+			    ZIL_ACE_LENGTH(lracl->lr_acl_bytes);
+			zfsvfs->z_fuid_replay =
+			    zfs_replay_fuids(fuidstart,
+			    (void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt,
+			    lr->lr_uid, lr->lr_gid);
+		}
+
+		error = VOP_CREATE(ZTOV(dzp), name, &xva.xva_vattr,
+		    0, 0, &vp, kcred, vflg, NULL, &vsec);
+		break;
+	case TX_MKDIR_ACL:
+		aclstart = (caddr_t)(lracl + 1);
+		fuidstart = (caddr_t)aclstart +
+		    ZIL_ACE_LENGTH(lracl->lr_acl_bytes);
+		zfsvfs->z_fuid_replay = zfs_replay_fuids(fuidstart,
+		    (void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt,
+		    lr->lr_uid, lr->lr_gid);
+		/*FALLTHROUGH*/
+	case TX_MKDIR_ACL_ATTR:
+		if (name == NULL) {
+			lrattr = (lr_attr_t *)(caddr_t)(lracl + 1);
+			xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
+			zfs_replay_xvattr(lrattr, &xva);
+		}
+		vsec.vsa_mask = VSA_ACE | VSA_ACE_ACLFLAGS;
+		vsec.vsa_aclentp = (caddr_t)(lracl + 1) + xvatlen;
+		vsec.vsa_aclcnt = lracl->lr_aclcnt;
+		vsec.vsa_aclentsz = lracl->lr_acl_bytes;
+		vsec.vsa_aclflags = lracl->lr_acl_flags;
+		if (zfsvfs->z_fuid_replay == NULL) {
+			fuidstart = (caddr_t)(lracl + 1) + xvatlen +
+			    ZIL_ACE_LENGTH(lracl->lr_acl_bytes);
+			zfsvfs->z_fuid_replay =
+			    zfs_replay_fuids(fuidstart,
+			    (void *)&name, lracl->lr_fuidcnt, lracl->lr_domcnt,
+			    lr->lr_uid, lr->lr_gid);
+		}
+		error = VOP_MKDIR(ZTOV(dzp), name, &xva.xva_vattr,
+		    &vp, kcred, NULL, vflg, &vsec);
+		break;
+	default:
+		error = ENOTSUP;
+	}
+
+bail:
+	if (error == 0 && vp != NULL)
+		VN_RELE(vp);
+
+	VN_RELE(ZTOV(dzp));
+
+	zfs_fuid_info_free(zfsvfs->z_fuid_replay);
+	zfsvfs->z_fuid_replay = NULL;
+
+	return (error);
+}
+
+static int
+zfs_replay_create(zfsvfs_t *zfsvfs, lr_create_t *lr, boolean_t byteswap)
+{
+	char *name = NULL;		/* location determined later */
+	char *link;			/* symlink content follows name */
+	znode_t *dzp;
+	vnode_t *vp = NULL;
+	xvattr_t xva;
+	int vflg = 0;
+	size_t lrsize = sizeof (lr_create_t);
+	lr_attr_t *lrattr;
+	void *start;
+	size_t xvatlen;
+	uint64_t txtype;
+	int error;
+
+	if (byteswap) {
+		byteswap_uint64_array(lr, sizeof (*lr));
+		txtype = (int)lr->lr_common.lrc_txtype;
+		if (txtype == TX_CREATE_ATTR || txtype == TX_MKDIR_ATTR)
+			zfs_replay_swap_attrs((lr_attr_t *)(lr + 1));
+	}
+
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0)
+		return (error);
+
+	xva_init(&xva);
+	zfs_init_vattr(&xva.xva_vattr, AT_TYPE | AT_MODE | AT_UID | AT_GID,
+	    lr->lr_mode, lr->lr_uid, lr->lr_gid, lr->lr_rdev, lr->lr_foid);
+
+	/*
+	 * All forms of zfs create (create, mkdir, mkxattrdir, symlink)
+	 * eventually end up in zfs_mknode(), which assigns the object's
+	 * creation time and generation number.  The generic VOP_CREATE()
+	 * doesn't have either concept, so we smuggle the values inside
+	 * the vattr's otherwise unused va_ctime and va_nblocks fields.
+	 */
+	ZFS_TIME_DECODE(&xva.xva_vattr.va_ctime, lr->lr_crtime);
+	xva.xva_vattr.va_nblocks = lr->lr_gen;
+
+	error = dmu_object_info(zfsvfs->z_os, lr->lr_foid, NULL);
+	if (error != ENOENT)
+		goto out;
+
+	if (lr->lr_common.lrc_txtype & TX_CI)
+		vflg |= FIGNORECASE;
+
+	/*
+	 * Symlinks don't have fuid info, and CIFS never creates
+	 * symlinks.
+	 *
+	 * The _ATTR versions will grab the fuid info in their subcases.
+	 */
+	if ((int)lr->lr_common.lrc_txtype != TX_SYMLINK &&
+	    (int)lr->lr_common.lrc_txtype != TX_MKDIR_ATTR &&
+	    (int)lr->lr_common.lrc_txtype != TX_CREATE_ATTR) {
+		start = (lr + 1);
+		zfsvfs->z_fuid_replay =
+		    zfs_replay_fuid_domain(start, &start,
+		    lr->lr_uid, lr->lr_gid);
+	}
+
+	switch ((int)lr->lr_common.lrc_txtype) {
+	case TX_CREATE_ATTR:
+		lrattr = (lr_attr_t *)(caddr_t)(lr + 1);
+		xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
+		zfs_replay_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), &xva);
+		start = (caddr_t)(lr + 1) + xvatlen;
+		zfsvfs->z_fuid_replay =
+		    zfs_replay_fuid_domain(start, &start,
+		    lr->lr_uid, lr->lr_gid);
+		name = (char *)start;
+
+		/*FALLTHROUGH*/
+	case TX_CREATE:
+		if (name == NULL)
+			name = (char *)start;
+
+		error = VOP_CREATE(ZTOV(dzp), name, &xva.xva_vattr,
+		    0, 0, &vp, kcred, vflg, NULL, NULL);
+		break;
+	case TX_MKDIR_ATTR:
+		lrattr = (lr_attr_t *)(caddr_t)(lr + 1);
+		xvatlen = ZIL_XVAT_SIZE(lrattr->lr_attr_masksize);
+		zfs_replay_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), &xva);
+		start = (caddr_t)(lr + 1) + xvatlen;
+		zfsvfs->z_fuid_replay =
+		    zfs_replay_fuid_domain(start, &start,
+		    lr->lr_uid, lr->lr_gid);
+		name = (char *)start;
+
+		/*FALLTHROUGH*/
+	case TX_MKDIR:
+		if (name == NULL)
+			name = (char *)(lr + 1);
+
+		error = VOP_MKDIR(ZTOV(dzp), name, &xva.xva_vattr,
+		    &vp, kcred, NULL, vflg, NULL);
+		break;
+	case TX_MKXATTR:
+		name = (char *)(lr + 1);
+		error = zfs_make_xattrdir(dzp, &xva.xva_vattr, &vp, kcred);
+		break;
+	case TX_SYMLINK:
+		name = (char *)(lr + 1);
+		link = name + strlen(name) + 1;
+		error = VOP_SYMLINK(ZTOV(dzp), name, &xva.xva_vattr,
+		    link, kcred, NULL, vflg);
+		break;
+	default:
+		error = ENOTSUP;
+	}
+
+out:
+	if (error == 0 && vp != NULL)
+		VN_RELE(vp);
+
+	VN_RELE(ZTOV(dzp));
+
+	if (zfsvfs->z_fuid_replay)
+		zfs_fuid_info_free(zfsvfs->z_fuid_replay);
+	zfsvfs->z_fuid_replay = NULL;
+	return (error);
+}
+
+static int
+zfs_replay_remove(zfsvfs_t *zfsvfs, lr_remove_t *lr, boolean_t byteswap)
+{
+	char *name = (char *)(lr + 1);	/* name follows lr_remove_t */
+	znode_t *dzp;
+	int error;
+	int vflg = 0;
+
+	if (byteswap)
+		byteswap_uint64_array(lr, sizeof (*lr));
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0)
+		return (error);
+
+	if (lr->lr_common.lrc_txtype & TX_CI)
+		vflg |= FIGNORECASE;
+
+	switch ((int)lr->lr_common.lrc_txtype) {
+	case TX_REMOVE:
+		error = VOP_REMOVE(ZTOV(dzp), name, kcred, NULL, vflg);
+		break;
+	case TX_RMDIR:
+		error = VOP_RMDIR(ZTOV(dzp), name, NULL, kcred, NULL, vflg);
+		break;
+	default:
+		error = ENOTSUP;
+	}
+
+	VN_RELE(ZTOV(dzp));
+
+	return (error);
+}
+
+static int
+zfs_replay_link(zfsvfs_t *zfsvfs, lr_link_t *lr, boolean_t byteswap)
+{
+	char *name = (char *)(lr + 1);	/* name follows lr_link_t */
+	znode_t *dzp, *zp;
+	int error;
+	int vflg = 0;
+
+	if (byteswap)
+		byteswap_uint64_array(lr, sizeof (*lr));
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_doid, &dzp)) != 0)
+		return (error);
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_link_obj, &zp)) != 0) {
+		VN_RELE(ZTOV(dzp));
+		return (error);
+	}
+
+	if (lr->lr_common.lrc_txtype & TX_CI)
+		vflg |= FIGNORECASE;
+
+	error = VOP_LINK(ZTOV(dzp), ZTOV(zp), name, kcred, NULL, vflg);
+
+	VN_RELE(ZTOV(zp));
+	VN_RELE(ZTOV(dzp));
+
+	return (error);
+}
+
+static int
+zfs_replay_rename(zfsvfs_t *zfsvfs, lr_rename_t *lr, boolean_t byteswap)
+{
+	char *sname = (char *)(lr + 1);	/* sname and tname follow lr_rename_t */
+	char *tname = sname + strlen(sname) + 1;
+	znode_t *sdzp, *tdzp;
+	int error;
+	int vflg = 0;
+
+	if (byteswap)
+		byteswap_uint64_array(lr, sizeof (*lr));
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_sdoid, &sdzp)) != 0)
+		return (error);
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_tdoid, &tdzp)) != 0) {
+		VN_RELE(ZTOV(sdzp));
+		return (error);
+	}
+
+	if (lr->lr_common.lrc_txtype & TX_CI)
+		vflg |= FIGNORECASE;
+
+	error = VOP_RENAME(ZTOV(sdzp), sname, ZTOV(tdzp), tname, kcred,
+	    NULL, vflg);
+
+	VN_RELE(ZTOV(tdzp));
+	VN_RELE(ZTOV(sdzp));
+
+	return (error);
+}
+
+static int
+zfs_replay_write(zfsvfs_t *zfsvfs, lr_write_t *lr, boolean_t byteswap)
+{
+	char *data = (char *)(lr + 1);	/* data follows lr_write_t */
+	znode_t	*zp;
+	int error;
+	ssize_t resid;
+
+	if (byteswap)
+		byteswap_uint64_array(lr, sizeof (*lr));
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) {
+		/*
+		 * As we can log writes out of order, it's possible the
+		 * file has been removed. In this case just drop the write
+		 * and return success.
+		 */
+		if (error == ENOENT)
+			error = 0;
+		return (error);
+	}
+
+	error = vn_rdwr(UIO_WRITE, ZTOV(zp), data, lr->lr_length,
+	    lr->lr_offset, UIO_SYSSPACE, 0, RLIM64_INFINITY, kcred, &resid);
+
+	VN_RELE(ZTOV(zp));
+
+	return (error);
+}
+
+static int
+zfs_replay_truncate(zfsvfs_t *zfsvfs, lr_truncate_t *lr, boolean_t byteswap)
+{
+	znode_t *zp;
+	flock64_t fl;
+	int error;
+
+	if (byteswap)
+		byteswap_uint64_array(lr, sizeof (*lr));
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) {
+		/*
+		 * As we can log truncates out of order, it's possible the
+		 * file has been removed. In this case just drop the truncate
+		 * and return success.
+		 */
+		if (error == ENOENT)
+			error = 0;
+		return (error);
+	}
+
+	bzero(&fl, sizeof (fl));
+	fl.l_type = F_WRLCK;
+	fl.l_whence = 0;
+	fl.l_start = lr->lr_offset;
+	fl.l_len = lr->lr_length;
+
+	error = VOP_SPACE(ZTOV(zp), F_FREESP, &fl, FWRITE | FOFFMAX,
+	    lr->lr_offset, kcred, NULL);
+
+	VN_RELE(ZTOV(zp));
+
+	return (error);
+}
+
+static int
+zfs_replay_setattr(zfsvfs_t *zfsvfs, lr_setattr_t *lr, boolean_t byteswap)
+{
+	znode_t *zp;
+	xvattr_t xva;
+	vattr_t *vap = &xva.xva_vattr;
+	int error;
+	void *start;
+
+	xva_init(&xva);
+	if (byteswap) {
+		byteswap_uint64_array(lr, sizeof (*lr));
+
+		if ((lr->lr_mask & AT_XVATTR) &&
+		    zfsvfs->z_version >= ZPL_VERSION_INITIAL)
+			zfs_replay_swap_attrs((lr_attr_t *)(lr + 1));
+	}
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) {
+		/*
+		 * As we can log setattrs out of order, it's possible the
+		 * file has been removed. In this case just drop the setattr
+		 * and return success.
+		 */
+		if (error == ENOENT)
+			error = 0;
+		return (error);
+	}
+
+	zfs_init_vattr(vap, lr->lr_mask, lr->lr_mode,
+	    lr->lr_uid, lr->lr_gid, 0, lr->lr_foid);
+
+	vap->va_size = lr->lr_size;
+	ZFS_TIME_DECODE(&vap->va_atime, lr->lr_atime);
+	ZFS_TIME_DECODE(&vap->va_mtime, lr->lr_mtime);
+
+	/*
+	 * Fill in xvattr_t portions if necessary.
+	 */
+
+	start = (lr_setattr_t *)(lr + 1);
+	if (vap->va_mask & AT_XVATTR) {
+		zfs_replay_xvattr((lr_attr_t *)start, &xva);
+		start = (caddr_t)start +
+		    ZIL_XVAT_SIZE(((lr_attr_t *)start)->lr_attr_masksize);
+	} else
+		xva.xva_vattr.va_mask &= ~AT_XVATTR;
+
+	zfsvfs->z_fuid_replay = zfs_replay_fuid_domain(start, &start,
+	    lr->lr_uid, lr->lr_gid);
+
+	error = VOP_SETATTR(ZTOV(zp), vap, 0, kcred, NULL);
+
+	zfs_fuid_info_free(zfsvfs->z_fuid_replay);
+	zfsvfs->z_fuid_replay = NULL;
+	VN_RELE(ZTOV(zp));
+
+	return (error);
+}
+
+static int
+zfs_replay_acl_v0(zfsvfs_t *zfsvfs, lr_acl_v0_t *lr, boolean_t byteswap)
+{
+	ace_t *ace = (ace_t *)(lr + 1);	/* ace array follows lr_acl_t */
+	vsecattr_t vsa;
+	znode_t *zp;
+	int error;
+
+	if (byteswap) {
+		byteswap_uint64_array(lr, sizeof (*lr));
+		zfs_oldace_byteswap(ace, lr->lr_aclcnt);
+	}
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) {
+		/*
+		 * As we can log acls out of order, it's possible the
+		 * file has been removed. In this case just drop the acl
+		 * and return success.
+		 */
+		if (error == ENOENT)
+			error = 0;
+		return (error);
+	}
+
+	bzero(&vsa, sizeof (vsa));
+	vsa.vsa_mask = VSA_ACE | VSA_ACECNT;
+	vsa.vsa_aclcnt = lr->lr_aclcnt;
+	vsa.vsa_aclentsz = sizeof (ace_t) * vsa.vsa_aclcnt;
+	vsa.vsa_aclflags = 0;
+	vsa.vsa_aclentp = ace;
+
+	error = VOP_SETSECATTR(ZTOV(zp), &vsa, 0, kcred, NULL);
+
+	VN_RELE(ZTOV(zp));
+
+	return (error);
+}
+
+/*
+ * Replaying ACLs is complicated by FUID support.
+ * The log record may contain some optional data
+ * to be used for replaying FUID's.  These pieces
+ * are the actual FUIDs that were created initially.
+ * The FUID table index may no longer be valid and
+ * during zfs_create() a new index may be assigned.
+ * Because of this the log will contain the original
+ * doman+rid in order to create a new FUID.
+ *
+ * The individual ACEs may contain an ephemeral uid/gid which is no
+ * longer valid and will need to be replaced with an actual FUID.
+ *
+ */
+static int
+zfs_replay_acl(zfsvfs_t *zfsvfs, lr_acl_t *lr, boolean_t byteswap)
+{
+	ace_t *ace = (ace_t *)(lr + 1);
+	vsecattr_t vsa;
+	znode_t *zp;
+	int error;
+
+	if (byteswap) {
+		byteswap_uint64_array(lr, sizeof (*lr));
+		zfs_ace_byteswap(ace, lr->lr_acl_bytes, B_FALSE);
+		if (lr->lr_fuidcnt) {
+			byteswap_uint64_array((caddr_t)ace +
+			    ZIL_ACE_LENGTH(lr->lr_acl_bytes),
+			    lr->lr_fuidcnt * sizeof (uint64_t));
+		}
+	}
+
+	if ((error = zfs_zget(zfsvfs, lr->lr_foid, &zp)) != 0) {
+		/*
+		 * As we can log acls out of order, it's possible the
+		 * file has been removed. In this case just drop the acl
+		 * and return success.
+		 */
+		if (error == ENOENT)
+			error = 0;
+		return (error);
+	}
+
+	bzero(&vsa, sizeof (vsa));
+	vsa.vsa_mask = VSA_ACE | VSA_ACECNT | VSA_ACE_ACLFLAGS;
+	vsa.vsa_aclcnt = lr->lr_aclcnt;
+	vsa.vsa_aclentp = ace;
+	vsa.vsa_aclentsz = lr->lr_acl_bytes;
+	vsa.vsa_aclflags = lr->lr_acl_flags;
+
+	if (lr->lr_fuidcnt) {
+		void *fuidstart = (caddr_t)ace +
+		    ZIL_ACE_LENGTH(lr->lr_acl_bytes);
+
+		zfsvfs->z_fuid_replay =
+		    zfs_replay_fuids(fuidstart, &fuidstart,
+		    lr->lr_fuidcnt, lr->lr_domcnt, 0, 0);
+	}
+
+	error = VOP_SETSECATTR(ZTOV(zp), &vsa, 0, kcred, NULL);
+
+	if (zfsvfs->z_fuid_replay)
+		zfs_fuid_info_free(zfsvfs->z_fuid_replay);
+
+	zfsvfs->z_fuid_replay = NULL;
+	VN_RELE(ZTOV(zp));
+
+	return (error);
+}
+
+/*
+ * Callback vectors for replaying records
+ */
+zil_replay_func_t *zfs_replay_vector[TX_MAX_TYPE] = {
+	zfs_replay_error,	/* 0 no such transaction type */
+	zfs_replay_create,	/* TX_CREATE */
+	zfs_replay_create,	/* TX_MKDIR */
+	zfs_replay_create,	/* TX_MKXATTR */
+	zfs_replay_create,	/* TX_SYMLINK */
+	zfs_replay_remove,	/* TX_REMOVE */
+	zfs_replay_remove,	/* TX_RMDIR */
+	zfs_replay_link,	/* TX_LINK */
+	zfs_replay_rename,	/* TX_RENAME */
+	zfs_replay_write,	/* TX_WRITE */
+	zfs_replay_truncate,	/* TX_TRUNCATE */
+	zfs_replay_setattr,	/* TX_SETATTR */
+	zfs_replay_acl_v0,	/* TX_ACL_V0 */
+	zfs_replay_acl,		/* TX_ACL */
+	zfs_replay_create_acl,	/* TX_CREATE_ACL */
+	zfs_replay_create,	/* TX_CREATE_ATTR */
+	zfs_replay_create_acl,	/* TX_CREATE_ACL_ATTR */
+	zfs_replay_create_acl,	/* TX_MKDIR_ACL */
+	zfs_replay_create,	/* TX_MKDIR_ATTR */
+	zfs_replay_create_acl,	/* TX_MKDIR_ACL_ATTR */
+};