Move the world out of /zfs/ and seperate out module build tree

1 files changed, 878 insertions, 0 deletions

diff --git a/module/zfs/zfs_replay.c b/module/zfs/zfs_replay.c
new file mode 100644
index 000000000..85b79703a
--- /dev/null
+++ b/module/zfs/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 */
+};