X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=module%2Fzfs%2Fzfs_log.c;fp=module%2Fzfs%2Fzfs_log.c;h=11cd4c264b5734929f24561dc2b4f3d3b199d298;hb=172bb4bd5e4afef721dd4d2972d8680d983f144b;hp=0000000000000000000000000000000000000000;hpb=9e8b1e836caa454586797f771a7ad1817ebae315;p=zfs.git

diff --git a/module/zfs/zfs_log.c b/module/zfs/zfs_log.c
new file mode 100644
index 0000000..11cd4c2
--- /dev/null
+++ b/module/zfs/zfs_log.c
@@ -0,0 +1,694 @@
+/*
+ * 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.
+ */
+
+#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/vfs.h>
+#include <sys/zfs_znode.h>
+#include <sys/zfs_dir.h>
+#include <sys/zil.h>
+#include <sys/zil_impl.h>
+#include <sys/byteorder.h>
+#include <sys/policy.h>
+#include <sys/stat.h>
+#include <sys/mode.h>
+#include <sys/acl.h>
+#include <sys/dmu.h>
+#include <sys/spa.h>
+#include <sys/zfs_fuid.h>
+#include <sys/ddi.h>
+
+/*
+ * All the functions in this file are used to construct the log entries
+ * to record transactions. They allocate * an intent log transaction
+ * structure (itx_t) and save within it all the information necessary to
+ * possibly replay the transaction. The itx is then assigned a sequence
+ * number and inserted in the in-memory list anchored in the zilog.
+ */
+
+int
+zfs_log_create_txtype(zil_create_t type, vsecattr_t *vsecp, vattr_t *vap)
+{
+	int isxvattr = (vap->va_mask & AT_XVATTR);
+	switch (type) {
+	case Z_FILE:
+		if (vsecp == NULL && !isxvattr)
+			return (TX_CREATE);
+		if (vsecp && isxvattr)
+			return (TX_CREATE_ACL_ATTR);
+		if (vsecp)
+			return (TX_CREATE_ACL);
+		else
+			return (TX_CREATE_ATTR);
+		/*NOTREACHED*/
+	case Z_DIR:
+		if (vsecp == NULL && !isxvattr)
+			return (TX_MKDIR);
+		if (vsecp && isxvattr)
+			return (TX_MKDIR_ACL_ATTR);
+		if (vsecp)
+			return (TX_MKDIR_ACL);
+		else
+			return (TX_MKDIR_ATTR);
+	case Z_XATTRDIR:
+		return (TX_MKXATTR);
+	}
+	ASSERT(0);
+	return (TX_MAX_TYPE);
+}
+
+/*
+ * build up the log data necessary for logging xvattr_t
+ * First lr_attr_t is initialized.  following the lr_attr_t
+ * is the mapsize and attribute bitmap copied from the xvattr_t.
+ * Following the bitmap and bitmapsize two 64 bit words are reserved
+ * for the create time which may be set.  Following the create time
+ * records a single 64 bit integer which has the bits to set on
+ * replay for the xvattr.
+ */
+static void
+zfs_log_xvattr(lr_attr_t *lrattr, xvattr_t *xvap)
+{
+	uint32_t	*bitmap;
+	uint64_t	*attrs;
+	uint64_t	*crtime;
+	xoptattr_t	*xoap;
+	void		*scanstamp;
+	int		i;
+
+	xoap = xva_getxoptattr(xvap);
+	ASSERT(xoap);
+
+	lrattr->lr_attr_masksize = xvap->xva_mapsize;
+	bitmap = &lrattr->lr_attr_bitmap;
+	for (i = 0; i != xvap->xva_mapsize; i++, bitmap++) {
+		*bitmap = xvap->xva_reqattrmap[i];
+	}
+
+	/* Now pack the attributes up in a single uint64_t */
+	attrs = (uint64_t *)bitmap;
+	crtime = attrs + 1;
+	scanstamp = (caddr_t)(crtime + 2);
+	*attrs = 0;
+	if (XVA_ISSET_REQ(xvap, XAT_READONLY))
+		*attrs |= (xoap->xoa_readonly == 0) ? 0 :
+		    XAT0_READONLY;
+	if (XVA_ISSET_REQ(xvap, XAT_HIDDEN))
+		*attrs |= (xoap->xoa_hidden == 0) ? 0 :
+		    XAT0_HIDDEN;
+	if (XVA_ISSET_REQ(xvap, XAT_SYSTEM))
+		*attrs |= (xoap->xoa_system == 0) ? 0 :
+		    XAT0_SYSTEM;
+	if (XVA_ISSET_REQ(xvap, XAT_ARCHIVE))
+		*attrs |= (xoap->xoa_archive == 0) ? 0 :
+		    XAT0_ARCHIVE;
+	if (XVA_ISSET_REQ(xvap, XAT_IMMUTABLE))
+		*attrs |= (xoap->xoa_immutable == 0) ? 0 :
+		    XAT0_IMMUTABLE;
+	if (XVA_ISSET_REQ(xvap, XAT_NOUNLINK))
+		*attrs |= (xoap->xoa_nounlink == 0) ? 0 :
+		    XAT0_NOUNLINK;
+	if (XVA_ISSET_REQ(xvap, XAT_APPENDONLY))
+		*attrs |= (xoap->xoa_appendonly == 0) ? 0 :
+		    XAT0_APPENDONLY;
+	if (XVA_ISSET_REQ(xvap, XAT_OPAQUE))
+		*attrs |= (xoap->xoa_opaque == 0) ? 0 :
+		    XAT0_APPENDONLY;
+	if (XVA_ISSET_REQ(xvap, XAT_NODUMP))
+		*attrs |= (xoap->xoa_nodump == 0) ? 0 :
+		    XAT0_NODUMP;
+	if (XVA_ISSET_REQ(xvap, XAT_AV_QUARANTINED))
+		*attrs |= (xoap->xoa_av_quarantined == 0) ? 0 :
+		    XAT0_AV_QUARANTINED;
+	if (XVA_ISSET_REQ(xvap, XAT_AV_MODIFIED))
+		*attrs |= (xoap->xoa_av_modified == 0) ? 0 :
+		    XAT0_AV_MODIFIED;
+	if (XVA_ISSET_REQ(xvap, XAT_CREATETIME))
+		ZFS_TIME_ENCODE(&xoap->xoa_createtime, crtime);
+	if (XVA_ISSET_REQ(xvap, XAT_AV_SCANSTAMP))
+		bcopy(xoap->xoa_av_scanstamp, scanstamp, AV_SCANSTAMP_SZ);
+}
+
+static void *
+zfs_log_fuid_ids(zfs_fuid_info_t *fuidp, void *start)
+{
+	zfs_fuid_t *zfuid;
+	uint64_t *fuidloc = start;
+
+	/* First copy in the ACE FUIDs */
+	for (zfuid = list_head(&fuidp->z_fuids); zfuid;
+	    zfuid = list_next(&fuidp->z_fuids, zfuid)) {
+		*fuidloc++ = zfuid->z_logfuid;
+	}
+	return (fuidloc);
+}
+
+
+static void *
+zfs_log_fuid_domains(zfs_fuid_info_t *fuidp, void *start)
+{
+	zfs_fuid_domain_t *zdomain;
+
+	/* now copy in the domain info, if any */
+	if (fuidp->z_domain_str_sz != 0) {
+		for (zdomain = list_head(&fuidp->z_domains); zdomain;
+		    zdomain = list_next(&fuidp->z_domains, zdomain)) {
+			bcopy((void *)zdomain->z_domain, start,
+			    strlen(zdomain->z_domain) + 1);
+			start = (caddr_t)start +
+			    strlen(zdomain->z_domain) + 1;
+		}
+	}
+	return (start);
+}
+
+/*
+ * zfs_log_create() is used to handle 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.
+ */
+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)
+{
+	itx_t *itx;
+	uint64_t seq;
+	lr_create_t *lr;
+	lr_acl_create_t *lracl;
+	size_t aclsize;
+	size_t xvatsize = 0;
+	size_t txsize;
+	xvattr_t *xvap = (xvattr_t *)vap;
+	void *end;
+	size_t lrsize;
+	size_t namesize = strlen(name) + 1;
+	size_t fuidsz = 0;
+
+	if (zilog == NULL)
+		return;
+
+	/*
+	 * If we have FUIDs present then add in space for
+	 * domains and ACE fuid's if any.
+	 */
+	if (fuidp) {
+		fuidsz += fuidp->z_domain_str_sz;
+		fuidsz += fuidp->z_fuid_cnt * sizeof (uint64_t);
+	}
+
+	if (vap->va_mask & AT_XVATTR)
+		xvatsize = ZIL_XVAT_SIZE(xvap->xva_mapsize);
+
+	if ((int)txtype == TX_CREATE_ATTR || (int)txtype == TX_MKDIR_ATTR ||
+	    (int)txtype == TX_CREATE || (int)txtype == TX_MKDIR ||
+	    (int)txtype == TX_MKXATTR) {
+		txsize = sizeof (*lr) + namesize + fuidsz + xvatsize;
+		lrsize = sizeof (*lr);
+	} else {
+		aclsize = (vsecp) ? vsecp->vsa_aclentsz : 0;
+		txsize =
+		    sizeof (lr_acl_create_t) + namesize + fuidsz +
+		    ZIL_ACE_LENGTH(aclsize) + xvatsize;
+		lrsize = sizeof (lr_acl_create_t);
+	}
+
+	itx = zil_itx_create(txtype, txsize);
+
+	lr = (lr_create_t *)&itx->itx_lr;
+	lr->lr_doid = dzp->z_id;
+	lr->lr_foid = zp->z_id;
+	lr->lr_mode = zp->z_phys->zp_mode;
+	if (!IS_EPHEMERAL(zp->z_phys->zp_uid)) {
+		lr->lr_uid = (uint64_t)zp->z_phys->zp_uid;
+	} else {
+		lr->lr_uid = fuidp->z_fuid_owner;
+	}
+	if (!IS_EPHEMERAL(zp->z_phys->zp_gid)) {
+		lr->lr_gid = (uint64_t)zp->z_phys->zp_gid;
+	} else {
+		lr->lr_gid = fuidp->z_fuid_group;
+	}
+	lr->lr_gen = zp->z_phys->zp_gen;
+	lr->lr_crtime[0] = zp->z_phys->zp_crtime[0];
+	lr->lr_crtime[1] = zp->z_phys->zp_crtime[1];
+	lr->lr_rdev = zp->z_phys->zp_rdev;
+
+	/*
+	 * Fill in xvattr info if any
+	 */
+	if (vap->va_mask & AT_XVATTR) {
+		zfs_log_xvattr((lr_attr_t *)((caddr_t)lr + lrsize), xvap);
+		end = (caddr_t)lr + lrsize + xvatsize;
+	} else {
+		end = (caddr_t)lr + lrsize;
+	}
+
+	/* Now fill in any ACL info */
+
+	if (vsecp) {
+		lracl = (lr_acl_create_t *)&itx->itx_lr;
+		lracl->lr_aclcnt = vsecp->vsa_aclcnt;
+		lracl->lr_acl_bytes = aclsize;
+		lracl->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
+		lracl->lr_fuidcnt  = fuidp ? fuidp->z_fuid_cnt : 0;
+		if (vsecp->vsa_aclflags & VSA_ACE_ACLFLAGS)
+			lracl->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
+		else
+			lracl->lr_acl_flags = 0;
+
+		bcopy(vsecp->vsa_aclentp, end, aclsize);
+		end = (caddr_t)end + ZIL_ACE_LENGTH(aclsize);
+	}
+
+	/* drop in FUID info */
+	if (fuidp) {
+		end = zfs_log_fuid_ids(fuidp, end);
+		end = zfs_log_fuid_domains(fuidp, end);
+	}
+	/*
+	 * Now place file name in log record
+	 */
+	bcopy(name, end, namesize);
+
+	seq = zil_itx_assign(zilog, itx, tx);
+	dzp->z_last_itx = seq;
+	zp->z_last_itx = seq;
+}
+
+/*
+ * zfs_log_remove() handles both TX_REMOVE and TX_RMDIR transactions.
+ */
+void
+zfs_log_remove(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
+	znode_t *dzp, char *name)
+{
+	itx_t *itx;
+	uint64_t seq;
+	lr_remove_t *lr;
+	size_t namesize = strlen(name) + 1;
+
+	if (zilog == NULL)
+		return;
+
+	itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
+	lr = (lr_remove_t *)&itx->itx_lr;
+	lr->lr_doid = dzp->z_id;
+	bcopy(name, (char *)(lr + 1), namesize);
+
+	seq = zil_itx_assign(zilog, itx, tx);
+	dzp->z_last_itx = seq;
+}
+
+/*
+ * zfs_log_link() handles TX_LINK transactions.
+ */
+void
+zfs_log_link(zilog_t *zilog, dmu_tx_t *tx, uint64_t txtype,
+	znode_t *dzp, znode_t *zp, char *name)
+{
+	itx_t *itx;
+	uint64_t seq;
+	lr_link_t *lr;
+	size_t namesize = strlen(name) + 1;
+
+	if (zilog == NULL)
+		return;
+
+	itx = zil_itx_create(txtype, sizeof (*lr) + namesize);
+	lr = (lr_link_t *)&itx->itx_lr;
+	lr->lr_doid = dzp->z_id;
+	lr->lr_link_obj = zp->z_id;
+	bcopy(name, (char *)(lr + 1), namesize);
+
+	seq = zil_itx_assign(zilog, itx, tx);
+	dzp->z_last_itx = seq;
+	zp->z_last_itx = seq;
+}
+
+/*
+ * zfs_log_symlink() handles TX_SYMLINK 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)
+{
+	itx_t *itx;
+	uint64_t seq;
+	lr_create_t *lr;
+	size_t namesize = strlen(name) + 1;
+	size_t linksize = strlen(link) + 1;
+
+	if (zilog == NULL)
+		return;
+
+	itx = zil_itx_create(txtype, sizeof (*lr) + namesize + linksize);
+	lr = (lr_create_t *)&itx->itx_lr;
+	lr->lr_doid = dzp->z_id;
+	lr->lr_foid = zp->z_id;
+	lr->lr_mode = zp->z_phys->zp_mode;
+	lr->lr_uid = zp->z_phys->zp_uid;
+	lr->lr_gid = zp->z_phys->zp_gid;
+	lr->lr_gen = zp->z_phys->zp_gen;
+	lr->lr_crtime[0] = zp->z_phys->zp_crtime[0];
+	lr->lr_crtime[1] = zp->z_phys->zp_crtime[1];
+	bcopy(name, (char *)(lr + 1), namesize);
+	bcopy(link, (char *)(lr + 1) + namesize, linksize);
+
+	seq = zil_itx_assign(zilog, itx, tx);
+	dzp->z_last_itx = seq;
+	zp->z_last_itx = seq;
+}
+
+/*
+ * zfs_log_rename() handles TX_RENAME 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)
+{
+	itx_t *itx;
+	uint64_t seq;
+	lr_rename_t *lr;
+	size_t snamesize = strlen(sname) + 1;
+	size_t dnamesize = strlen(dname) + 1;
+
+	if (zilog == NULL)
+		return;
+
+	itx = zil_itx_create(txtype, sizeof (*lr) + snamesize + dnamesize);
+	lr = (lr_rename_t *)&itx->itx_lr;
+	lr->lr_sdoid = sdzp->z_id;
+	lr->lr_tdoid = tdzp->z_id;
+	bcopy(sname, (char *)(lr + 1), snamesize);
+	bcopy(dname, (char *)(lr + 1) + snamesize, dnamesize);
+
+	seq = zil_itx_assign(zilog, itx, tx);
+	sdzp->z_last_itx = seq;
+	tdzp->z_last_itx = seq;
+	szp->z_last_itx = seq;
+}
+
+/*
+ * zfs_log_write() handles TX_WRITE transactions.
+ */
+ssize_t zfs_immediate_write_sz = 32768;
+
+#define	ZIL_MAX_LOG_DATA (SPA_MAXBLOCKSIZE - sizeof (zil_trailer_t) - \
+    sizeof (lr_write_t))
+
+void
+zfs_log_write(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+	znode_t *zp, offset_t off, ssize_t resid, int ioflag)
+{
+	itx_wr_state_t write_state;
+	boolean_t slogging;
+	uintptr_t fsync_cnt;
+
+	if (zilog == NULL || zp->z_unlinked)
+		return;
+
+	/*
+	 * Writes are handled in three different ways:
+	 *
+	 * WR_INDIRECT:
+	 *    In this mode, if we need to commit the write later, then the block
+	 *    is immediately written into the file system (using dmu_sync),
+	 *    and a pointer to the block is put into the log record.
+	 *    When the txg commits the block is linked in.
+	 *    This saves additionally writing the data into the log record.
+	 *    There are a few requirements for this to occur:
+	 *	- write is greater than zfs_immediate_write_sz
+	 *	- not using slogs (as slogs are assumed to always be faster
+	 *	  than writing into the main pool)
+	 *	- the write occupies only one block
+	 * WR_COPIED:
+	 *    If we know we'll immediately be committing the
+	 *    transaction (FSYNC or FDSYNC), the we allocate a larger
+	 *    log record here for the data and copy the data in.
+	 * WR_NEED_COPY:
+	 *    Otherwise we don't allocate a buffer, and *if* we need to
+	 *    flush the write later then a buffer is allocated and
+	 *    we retrieve the data using the dmu.
+	 */
+	slogging = spa_has_slogs(zilog->zl_spa);
+	if (resid > zfs_immediate_write_sz && !slogging && resid <= zp->z_blksz)
+		write_state = WR_INDIRECT;
+	else if (ioflag & (FSYNC | FDSYNC))
+		write_state = WR_COPIED;
+	else
+		write_state = WR_NEED_COPY;
+
+	if ((fsync_cnt = (uintptr_t)tsd_get(zfs_fsyncer_key)) != 0) {
+		(void) tsd_set(zfs_fsyncer_key, (void *)(fsync_cnt - 1));
+	}
+
+	while (resid) {
+		itx_t *itx;
+		lr_write_t *lr;
+		ssize_t len;
+
+		/*
+		 * If the write would overflow the largest block then split it.
+		 */
+		if (write_state != WR_INDIRECT && resid > ZIL_MAX_LOG_DATA)
+			len = SPA_MAXBLOCKSIZE >> 1;
+		else
+			len = resid;
+
+		itx = zil_itx_create(txtype, sizeof (*lr) +
+		    (write_state == WR_COPIED ? len : 0));
+		lr = (lr_write_t *)&itx->itx_lr;
+		if (write_state == WR_COPIED && dmu_read(zp->z_zfsvfs->z_os,
+		    zp->z_id, off, len, lr + 1) != 0) {
+			kmem_free(itx, offsetof(itx_t, itx_lr) +
+			    itx->itx_lr.lrc_reclen);
+			itx = zil_itx_create(txtype, sizeof (*lr));
+			lr = (lr_write_t *)&itx->itx_lr;
+			write_state = WR_NEED_COPY;
+		}
+
+		itx->itx_wr_state = write_state;
+		if (write_state == WR_NEED_COPY)
+			itx->itx_sod += len;
+		lr->lr_foid = zp->z_id;
+		lr->lr_offset = off;
+		lr->lr_length = len;
+		lr->lr_blkoff = 0;
+		BP_ZERO(&lr->lr_blkptr);
+
+		itx->itx_private = zp->z_zfsvfs;
+
+		if ((zp->z_sync_cnt != 0) || (fsync_cnt != 0) ||
+		    (ioflag & (FSYNC | FDSYNC)))
+			itx->itx_sync = B_TRUE;
+		else
+			itx->itx_sync = B_FALSE;
+
+		zp->z_last_itx = zil_itx_assign(zilog, itx, tx);
+
+		off += len;
+		resid -= len;
+	}
+}
+
+/*
+ * zfs_log_truncate() handles TX_TRUNCATE transactions.
+ */
+void
+zfs_log_truncate(zilog_t *zilog, dmu_tx_t *tx, int txtype,
+	znode_t *zp, uint64_t off, uint64_t len)
+{
+	itx_t *itx;
+	uint64_t seq;
+	lr_truncate_t *lr;
+
+	if (zilog == NULL || zp->z_unlinked)
+		return;
+
+	itx = zil_itx_create(txtype, sizeof (*lr));
+	lr = (lr_truncate_t *)&itx->itx_lr;
+	lr->lr_foid = zp->z_id;
+	lr->lr_offset = off;
+	lr->lr_length = len;
+
+	itx->itx_sync = (zp->z_sync_cnt != 0);
+	seq = zil_itx_assign(zilog, itx, tx);
+	zp->z_last_itx = seq;
+}
+
+/*
+ * zfs_log_setattr() handles TX_SETATTR 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)
+{
+	itx_t		*itx;
+	uint64_t	seq;
+	lr_setattr_t	*lr;
+	xvattr_t	*xvap = (xvattr_t *)vap;
+	size_t		recsize = sizeof (lr_setattr_t);
+	void		*start;
+
+
+	if (zilog == NULL || zp->z_unlinked)
+		return;
+
+	/*
+	 * If XVATTR set, then log record size needs to allow
+	 * for lr_attr_t + xvattr mask, mapsize and create time
+	 * plus actual attribute values
+	 */
+	if (vap->va_mask & AT_XVATTR)
+		recsize = sizeof (*lr) + ZIL_XVAT_SIZE(xvap->xva_mapsize);
+
+	if (fuidp)
+		recsize += fuidp->z_domain_str_sz;
+
+	itx = zil_itx_create(txtype, recsize);
+	lr = (lr_setattr_t *)&itx->itx_lr;
+	lr->lr_foid = zp->z_id;
+	lr->lr_mask = (uint64_t)mask_applied;
+	lr->lr_mode = (uint64_t)vap->va_mode;
+	if ((mask_applied & AT_UID) && IS_EPHEMERAL(vap->va_uid))
+		lr->lr_uid = fuidp->z_fuid_owner;
+	else
+		lr->lr_uid = (uint64_t)vap->va_uid;
+
+	if ((mask_applied & AT_GID) && IS_EPHEMERAL(vap->va_gid))
+		lr->lr_gid = fuidp->z_fuid_group;
+	else
+		lr->lr_gid = (uint64_t)vap->va_gid;
+
+	lr->lr_size = (uint64_t)vap->va_size;
+	ZFS_TIME_ENCODE(&vap->va_atime, lr->lr_atime);
+	ZFS_TIME_ENCODE(&vap->va_mtime, lr->lr_mtime);
+	start = (lr_setattr_t *)(lr + 1);
+	if (vap->va_mask & AT_XVATTR) {
+		zfs_log_xvattr((lr_attr_t *)start, xvap);
+		start = (caddr_t)start + ZIL_XVAT_SIZE(xvap->xva_mapsize);
+	}
+
+	/*
+	 * Now stick on domain information if any on end
+	 */
+
+	if (fuidp)
+		(void) zfs_log_fuid_domains(fuidp, start);
+
+	itx->itx_sync = (zp->z_sync_cnt != 0);
+	seq = zil_itx_assign(zilog, itx, tx);
+	zp->z_last_itx = seq;
+}
+
+/*
+ * zfs_log_acl() handles TX_ACL transactions.
+ */
+void
+zfs_log_acl(zilog_t *zilog, dmu_tx_t *tx, znode_t *zp,
+    vsecattr_t *vsecp, zfs_fuid_info_t *fuidp)
+{
+	itx_t *itx;
+	uint64_t seq;
+	lr_acl_v0_t *lrv0;
+	lr_acl_t *lr;
+	int txtype;
+	int lrsize;
+	size_t txsize;
+	size_t aclbytes = vsecp->vsa_aclentsz;
+
+	if (zilog == NULL || zp->z_unlinked)
+		return;
+
+	txtype = (zp->z_zfsvfs->z_version < ZPL_VERSION_FUID) ?
+	    TX_ACL_V0 : TX_ACL;
+
+	if (txtype == TX_ACL)
+		lrsize = sizeof (*lr);
+	else
+		lrsize = sizeof (*lrv0);
+
+	txsize = lrsize +
+	    ((txtype == TX_ACL) ? ZIL_ACE_LENGTH(aclbytes) : aclbytes) +
+	    (fuidp ? fuidp->z_domain_str_sz : 0) +
+	    sizeof (uint64_t) * (fuidp ? fuidp->z_fuid_cnt : 0);
+
+	itx = zil_itx_create(txtype, txsize);
+
+	lr = (lr_acl_t *)&itx->itx_lr;
+	lr->lr_foid = zp->z_id;
+	if (txtype == TX_ACL) {
+		lr->lr_acl_bytes = aclbytes;
+		lr->lr_domcnt = fuidp ? fuidp->z_domain_cnt : 0;
+		lr->lr_fuidcnt = fuidp ? fuidp->z_fuid_cnt : 0;
+		if (vsecp->vsa_mask & VSA_ACE_ACLFLAGS)
+			lr->lr_acl_flags = (uint64_t)vsecp->vsa_aclflags;
+		else
+			lr->lr_acl_flags = 0;
+	}
+	lr->lr_aclcnt = (uint64_t)vsecp->vsa_aclcnt;
+
+	if (txtype == TX_ACL_V0) {
+		lrv0 = (lr_acl_v0_t *)lr;
+		bcopy(vsecp->vsa_aclentp, (ace_t *)(lrv0 + 1), aclbytes);
+	} else {
+		void *start = (ace_t *)(lr + 1);
+
+		bcopy(vsecp->vsa_aclentp, start, aclbytes);
+
+		start = (caddr_t)start + ZIL_ACE_LENGTH(aclbytes);
+
+		if (fuidp) {
+			start = zfs_log_fuid_ids(fuidp, start);
+			(void) zfs_log_fuid_domains(fuidp, start);
+		}
+	}
+
+	itx->itx_sync = (zp->z_sync_cnt != 0);
+	seq = zil_itx_assign(zilog, itx, tx);
+	zp->z_last_itx = seq;
+}