--- /dev/null
+/*
+ * 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;
+}
git://git.camperquake.de / zfs.git / blobdiff