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-rw-r--r--cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c736
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diff --git a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c b/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c
deleted file mode 100644
index 7bbb68328f29..000000000000
--- a/cddl/contrib/opensolaris/lib/libzfs/common/libzfs_changelist.c
+++ /dev/null
@@ -1,736 +0,0 @@
-/*
- * 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 2010 Sun Microsystems, Inc. All rights reserved.
- * Use is subject to license terms.
- *
- * Portions Copyright 2007 Ramprakash Jelari
- * Copyright (c) 2011 Pawel Jakub Dawidek <pawel@dawidek.net>.
- * All rights reserved.
- * Copyright (c) 2014, 2016 by Delphix. All rights reserved.
- * Copyright 2016 Igor Kozhukhov <ikozhukhov@gmail.com>
- */
-
-#include <libintl.h>
-#include <libuutil.h>
-#include <stddef.h>
-#include <stdlib.h>
-#include <string.h>
-#include <unistd.h>
-#include <zone.h>
-
-#include <libzfs.h>
-
-#include "libzfs_impl.h"
-
-/*
- * Structure to keep track of dataset state. Before changing the 'sharenfs' or
- * 'mountpoint' property, we record whether the filesystem was previously
- * mounted/shared. This prior state dictates whether we remount/reshare the
- * dataset after the property has been changed.
- *
- * The interface consists of the following sequence of functions:
- *
- * changelist_gather()
- * changelist_prefix()
- * < change property >
- * changelist_postfix()
- * changelist_free()
- *
- * Other interfaces:
- *
- * changelist_remove() - remove a node from a gathered list
- * changelist_rename() - renames all datasets appropriately when doing a rename
- * changelist_unshare() - unshares all the nodes in a given changelist
- * changelist_haszonedchild() - check if there is any child exported to
- * a local zone
- */
-typedef struct prop_changenode {
- zfs_handle_t *cn_handle;
- int cn_shared;
- int cn_mounted;
- int cn_zoned;
- boolean_t cn_needpost; /* is postfix() needed? */
- uu_list_node_t cn_listnode;
-} prop_changenode_t;
-
-struct prop_changelist {
- zfs_prop_t cl_prop;
- zfs_prop_t cl_realprop;
- zfs_prop_t cl_shareprop; /* used with sharenfs/sharesmb */
- uu_list_pool_t *cl_pool;
- uu_list_t *cl_list;
- boolean_t cl_waslegacy;
- boolean_t cl_allchildren;
- boolean_t cl_alldependents;
- int cl_mflags; /* Mount flags */
- int cl_gflags; /* Gather request flags */
- boolean_t cl_haszonedchild;
- boolean_t cl_sorted;
-};
-
-/*
- * If the property is 'mountpoint', go through and unmount filesystems as
- * necessary. We don't do the same for 'sharenfs', because we can just re-share
- * with different options without interrupting service. We do handle 'sharesmb'
- * since there may be old resource names that need to be removed.
- */
-int
-changelist_prefix(prop_changelist_t *clp)
-{
- prop_changenode_t *cn;
- int ret = 0;
-
- if (clp->cl_prop != ZFS_PROP_MOUNTPOINT &&
- clp->cl_prop != ZFS_PROP_SHARESMB)
- return (0);
-
- for (cn = uu_list_first(clp->cl_list); cn != NULL;
- cn = uu_list_next(clp->cl_list, cn)) {
-
- /* if a previous loop failed, set the remaining to false */
- if (ret == -1) {
- cn->cn_needpost = B_FALSE;
- continue;
- }
-
- /*
- * If we are in the global zone, but this dataset is exported
- * to a local zone, do nothing.
- */
- if (getzoneid() == GLOBAL_ZONEID && cn->cn_zoned)
- continue;
-
- if (!ZFS_IS_VOLUME(cn->cn_handle)) {
- /*
- * Do the property specific processing.
- */
- switch (clp->cl_prop) {
- case ZFS_PROP_MOUNTPOINT:
- if (clp->cl_gflags & CL_GATHER_DONT_UNMOUNT)
- break;
- if (zfs_unmount(cn->cn_handle, NULL,
- clp->cl_mflags) != 0) {
- ret = -1;
- cn->cn_needpost = B_FALSE;
- }
- break;
- case ZFS_PROP_SHARESMB:
- (void) zfs_unshare_smb(cn->cn_handle, NULL);
- break;
-
- default:
- break;
- }
- }
- }
-
- if (ret == -1)
- (void) changelist_postfix(clp);
-
- return (ret);
-}
-
-/*
- * If the property is 'mountpoint' or 'sharenfs', go through and remount and/or
- * reshare the filesystems as necessary. In changelist_gather() we recorded
- * whether the filesystem was previously shared or mounted. The action we take
- * depends on the previous state, and whether the value was previously 'legacy'.
- * For non-legacy properties, we only remount/reshare the filesystem if it was
- * previously mounted/shared. Otherwise, we always remount/reshare the
- * filesystem.
- */
-int
-changelist_postfix(prop_changelist_t *clp)
-{
- prop_changenode_t *cn;
- char shareopts[ZFS_MAXPROPLEN];
- int errors = 0;
- libzfs_handle_t *hdl;
-#ifdef illumos
- size_t num_datasets = 0, i;
- zfs_handle_t **zhandle_arr;
- sa_init_selective_arg_t sharearg;
-#endif
-
- /*
- * If we're changing the mountpoint, attempt to destroy the underlying
- * mountpoint. All other datasets will have inherited from this dataset
- * (in which case their mountpoints exist in the filesystem in the new
- * location), or have explicit mountpoints set (in which case they won't
- * be in the changelist).
- */
- if ((cn = uu_list_last(clp->cl_list)) == NULL)
- return (0);
-
- if (clp->cl_prop == ZFS_PROP_MOUNTPOINT &&
- !(clp->cl_gflags & CL_GATHER_DONT_UNMOUNT)) {
- remove_mountpoint(cn->cn_handle);
- }
-
- /*
- * It is possible that the changelist_prefix() used libshare
- * to unshare some entries. Since libshare caches data, an
- * attempt to reshare during postfix can fail unless libshare
- * is uninitialized here so that it will reinitialize later.
- */
- if (cn->cn_handle != NULL) {
- hdl = cn->cn_handle->zfs_hdl;
- assert(hdl != NULL);
- zfs_uninit_libshare(hdl);
-
-#ifdef illumos
- /*
- * For efficiencies sake, we initialize libshare for only a few
- * shares (the ones affected here). Future initializations in
- * this process should just use the cached initialization.
- */
- for (cn = uu_list_last(clp->cl_list); cn != NULL;
- cn = uu_list_prev(clp->cl_list, cn)) {
- num_datasets++;
- }
-
- zhandle_arr = zfs_alloc(hdl,
- num_datasets * sizeof (zfs_handle_t *));
- for (i = 0, cn = uu_list_last(clp->cl_list); cn != NULL;
- cn = uu_list_prev(clp->cl_list, cn)) {
- zhandle_arr[i++] = cn->cn_handle;
- zfs_refresh_properties(cn->cn_handle);
- }
- assert(i == num_datasets);
- sharearg.zhandle_arr = zhandle_arr;
- sharearg.zhandle_len = num_datasets;
- errors = zfs_init_libshare_arg(hdl, SA_INIT_SHARE_API_SELECTIVE,
- &sharearg);
- free(zhandle_arr);
-#endif
- }
- /*
- * We walk the datasets in reverse, because we want to mount any parent
- * datasets before mounting the children. We walk all datasets even if
- * there are errors.
- */
- for (cn = uu_list_last(clp->cl_list); cn != NULL;
- cn = uu_list_prev(clp->cl_list, cn)) {
-
- boolean_t sharenfs;
- boolean_t sharesmb;
- boolean_t mounted;
-
- /*
- * If we are in the global zone, but this dataset is exported
- * to a local zone, do nothing.
- */
- if (getzoneid() == GLOBAL_ZONEID && cn->cn_zoned)
- continue;
-
- /* Only do post-processing if it's required */
- if (!cn->cn_needpost)
- continue;
- cn->cn_needpost = B_FALSE;
-
-#ifndef illumos
- zfs_refresh_properties(cn->cn_handle);
-#endif
-
- if (ZFS_IS_VOLUME(cn->cn_handle))
- continue;
-
- /*
- * Remount if previously mounted or mountpoint was legacy,
- * or sharenfs or sharesmb property is set.
- */
- sharenfs = ((zfs_prop_get(cn->cn_handle, ZFS_PROP_SHARENFS,
- shareopts, sizeof (shareopts), NULL, NULL, 0,
- B_FALSE) == 0) && (strcmp(shareopts, "off") != 0));
-
- sharesmb = ((zfs_prop_get(cn->cn_handle, ZFS_PROP_SHARESMB,
- shareopts, sizeof (shareopts), NULL, NULL, 0,
- B_FALSE) == 0) && (strcmp(shareopts, "off") != 0));
-
- mounted = (clp->cl_gflags & CL_GATHER_DONT_UNMOUNT) ||
- zfs_is_mounted(cn->cn_handle, NULL);
-
- if (!mounted && (cn->cn_mounted ||
- ((sharenfs || sharesmb || clp->cl_waslegacy) &&
- (zfs_prop_get_int(cn->cn_handle,
- ZFS_PROP_CANMOUNT) == ZFS_CANMOUNT_ON)))) {
-
- if (zfs_mount(cn->cn_handle, NULL, 0) != 0)
- errors++;
- else
- mounted = TRUE;
- }
-
- /*
- * If the file system is mounted we always re-share even
- * if the filesystem is currently shared, so that we can
- * adopt any new options.
- */
- if (sharenfs && mounted)
- errors += zfs_share_nfs(cn->cn_handle);
- else if (cn->cn_shared || clp->cl_waslegacy)
- errors += zfs_unshare_nfs(cn->cn_handle, NULL);
- if (sharesmb && mounted)
- errors += zfs_share_smb(cn->cn_handle);
- else if (cn->cn_shared || clp->cl_waslegacy)
- errors += zfs_unshare_smb(cn->cn_handle, NULL);
- }
-
- return (errors ? -1 : 0);
-}
-
-/*
- * Is this "dataset" a child of "parent"?
- */
-boolean_t
-isa_child_of(const char *dataset, const char *parent)
-{
- int len;
-
- len = strlen(parent);
-
- if (strncmp(dataset, parent, len) == 0 &&
- (dataset[len] == '@' || dataset[len] == '/' ||
- dataset[len] == '\0'))
- return (B_TRUE);
- else
- return (B_FALSE);
-
-}
-
-/*
- * If we rename a filesystem, child filesystem handles are no longer valid
- * since we identify each dataset by its name in the ZFS namespace. As a
- * result, we have to go through and fix up all the names appropriately. We
- * could do this automatically if libzfs kept track of all open handles, but
- * this is a lot less work.
- */
-void
-changelist_rename(prop_changelist_t *clp, const char *src, const char *dst)
-{
- prop_changenode_t *cn;
- char newname[ZFS_MAX_DATASET_NAME_LEN];
-
- for (cn = uu_list_first(clp->cl_list); cn != NULL;
- cn = uu_list_next(clp->cl_list, cn)) {
- /*
- * Do not rename a clone that's not in the source hierarchy.
- */
- if (!isa_child_of(cn->cn_handle->zfs_name, src))
- continue;
-
- /*
- * Destroy the previous mountpoint if needed.
- */
- remove_mountpoint(cn->cn_handle);
-
- (void) strlcpy(newname, dst, sizeof (newname));
- (void) strcat(newname, cn->cn_handle->zfs_name + strlen(src));
-
- (void) strlcpy(cn->cn_handle->zfs_name, newname,
- sizeof (cn->cn_handle->zfs_name));
- }
-}
-
-/*
- * Given a gathered changelist for the 'sharenfs' or 'sharesmb' property,
- * unshare all the datasets in the list.
- */
-int
-changelist_unshare(prop_changelist_t *clp, zfs_share_proto_t *proto)
-{
- prop_changenode_t *cn;
- int ret = 0;
-
- if (clp->cl_prop != ZFS_PROP_SHARENFS &&
- clp->cl_prop != ZFS_PROP_SHARESMB)
- return (0);
-
- for (cn = uu_list_first(clp->cl_list); cn != NULL;
- cn = uu_list_next(clp->cl_list, cn)) {
- if (zfs_unshare_proto(cn->cn_handle, NULL, proto) != 0)
- ret = -1;
- }
-
- return (ret);
-}
-
-/*
- * Check if there is any child exported to a local zone in a given changelist.
- * This information has already been recorded while gathering the changelist
- * via changelist_gather().
- */
-int
-changelist_haszonedchild(prop_changelist_t *clp)
-{
- return (clp->cl_haszonedchild);
-}
-
-/*
- * Remove a node from a gathered list.
- */
-void
-changelist_remove(prop_changelist_t *clp, const char *name)
-{
- prop_changenode_t *cn;
-
- for (cn = uu_list_first(clp->cl_list); cn != NULL;
- cn = uu_list_next(clp->cl_list, cn)) {
-
- if (strcmp(cn->cn_handle->zfs_name, name) == 0) {
- uu_list_remove(clp->cl_list, cn);
- zfs_close(cn->cn_handle);
- free(cn);
- return;
- }
- }
-}
-
-/*
- * Release any memory associated with a changelist.
- */
-void
-changelist_free(prop_changelist_t *clp)
-{
- prop_changenode_t *cn;
- void *cookie;
-
- if (clp->cl_list) {
- cookie = NULL;
- while ((cn = uu_list_teardown(clp->cl_list, &cookie)) != NULL) {
- zfs_close(cn->cn_handle);
- free(cn);
- }
-
- uu_list_destroy(clp->cl_list);
- }
- if (clp->cl_pool)
- uu_list_pool_destroy(clp->cl_pool);
-
- free(clp);
-}
-
-static int
-change_one(zfs_handle_t *zhp, void *data)
-{
- prop_changelist_t *clp = data;
- char property[ZFS_MAXPROPLEN];
- char where[64];
- prop_changenode_t *cn;
- zprop_source_t sourcetype;
- zprop_source_t share_sourcetype;
-
- /*
- * We only want to unmount/unshare those filesystems that may inherit
- * from the target filesystem. If we find any filesystem with a
- * locally set mountpoint, we ignore any children since changing the
- * property will not affect them. If this is a rename, we iterate
- * over all children regardless, since we need them unmounted in
- * order to do the rename. Also, if this is a volume and we're doing
- * a rename, then always add it to the changelist.
- */
-
- if (!(ZFS_IS_VOLUME(zhp) && clp->cl_realprop == ZFS_PROP_NAME) &&
- zfs_prop_get(zhp, clp->cl_prop, property,
- sizeof (property), &sourcetype, where, sizeof (where),
- B_FALSE) != 0) {
- zfs_close(zhp);
- return (0);
- }
-
- /*
- * If we are "watching" sharenfs or sharesmb
- * then check out the companion property which is tracked
- * in cl_shareprop
- */
- if (clp->cl_shareprop != ZPROP_INVAL &&
- zfs_prop_get(zhp, clp->cl_shareprop, property,
- sizeof (property), &share_sourcetype, where, sizeof (where),
- B_FALSE) != 0) {
- zfs_close(zhp);
- return (0);
- }
-
- if (clp->cl_alldependents || clp->cl_allchildren ||
- sourcetype == ZPROP_SRC_DEFAULT ||
- sourcetype == ZPROP_SRC_INHERITED ||
- (clp->cl_shareprop != ZPROP_INVAL &&
- (share_sourcetype == ZPROP_SRC_DEFAULT ||
- share_sourcetype == ZPROP_SRC_INHERITED))) {
- if ((cn = zfs_alloc(zfs_get_handle(zhp),
- sizeof (prop_changenode_t))) == NULL) {
- zfs_close(zhp);
- return (-1);
- }
-
- cn->cn_handle = zhp;
- cn->cn_mounted = (clp->cl_gflags & CL_GATHER_MOUNT_ALWAYS) ||
- zfs_is_mounted(zhp, NULL);
- cn->cn_shared = zfs_is_shared(zhp);
- cn->cn_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
- cn->cn_needpost = B_TRUE;
-
- /* Indicate if any child is exported to a local zone. */
- if (getzoneid() == GLOBAL_ZONEID && cn->cn_zoned)
- clp->cl_haszonedchild = B_TRUE;
-
- uu_list_node_init(cn, &cn->cn_listnode, clp->cl_pool);
-
- if (clp->cl_sorted) {
- uu_list_index_t idx;
-
- (void) uu_list_find(clp->cl_list, cn, NULL,
- &idx);
- uu_list_insert(clp->cl_list, cn, idx);
- } else {
- /*
- * Add this child to beginning of the list. Children
- * below this one in the hierarchy will get added above
- * this one in the list. This produces a list in
- * reverse dataset name order.
- * This is necessary when the original mountpoint
- * is legacy or none.
- */
- verify(uu_list_insert_before(clp->cl_list,
- uu_list_first(clp->cl_list), cn) == 0);
- }
-
- if (!clp->cl_alldependents)
- return (zfs_iter_children(zhp, change_one, data));
- } else {
- zfs_close(zhp);
- }
-
- return (0);
-}
-
-/*ARGSUSED*/
-static int
-compare_mountpoints(const void *a, const void *b, void *unused)
-{
- const prop_changenode_t *ca = a;
- const prop_changenode_t *cb = b;
-
- char mounta[MAXPATHLEN];
- char mountb[MAXPATHLEN];
-
- boolean_t hasmounta, hasmountb;
-
- /*
- * When unsharing or unmounting filesystems, we need to do it in
- * mountpoint order. This allows the user to have a mountpoint
- * hierarchy that is different from the dataset hierarchy, and still
- * allow it to be changed. However, if either dataset doesn't have a
- * mountpoint (because it is a volume or a snapshot), we place it at the
- * end of the list, because it doesn't affect our change at all.
- */
- hasmounta = (zfs_prop_get(ca->cn_handle, ZFS_PROP_MOUNTPOINT, mounta,
- sizeof (mounta), NULL, NULL, 0, B_FALSE) == 0);
- hasmountb = (zfs_prop_get(cb->cn_handle, ZFS_PROP_MOUNTPOINT, mountb,
- sizeof (mountb), NULL, NULL, 0, B_FALSE) == 0);
-
- if (!hasmounta && hasmountb)
- return (-1);
- else if (hasmounta && !hasmountb)
- return (1);
- else if (!hasmounta && !hasmountb)
- return (0);
- else
- return (strcmp(mountb, mounta));
-}
-
-/*
- * Given a ZFS handle and a property, construct a complete list of datasets
- * that need to be modified as part of this process. For anything but the
- * 'mountpoint' and 'sharenfs' properties, this just returns an empty list.
- * Otherwise, we iterate over all children and look for any datasets that
- * inherit the property. For each such dataset, we add it to the list and
- * mark whether it was shared beforehand.
- */
-prop_changelist_t *
-changelist_gather(zfs_handle_t *zhp, zfs_prop_t prop, int gather_flags,
- int mnt_flags)
-{
- prop_changelist_t *clp;
- prop_changenode_t *cn;
- zfs_handle_t *temp;
- char property[ZFS_MAXPROPLEN];
- uu_compare_fn_t *compare = NULL;
- boolean_t legacy = B_FALSE;
-
- if ((clp = zfs_alloc(zhp->zfs_hdl, sizeof (prop_changelist_t))) == NULL)
- return (NULL);
-
- /*
- * For mountpoint-related tasks, we want to sort everything by
- * mountpoint, so that we mount and unmount them in the appropriate
- * order, regardless of their position in the hierarchy.
- */
- if (prop == ZFS_PROP_NAME || prop == ZFS_PROP_ZONED ||
- prop == ZFS_PROP_MOUNTPOINT || prop == ZFS_PROP_SHARENFS ||
- prop == ZFS_PROP_SHARESMB) {
-
- if (zfs_prop_get(zhp, ZFS_PROP_MOUNTPOINT,
- property, sizeof (property),
- NULL, NULL, 0, B_FALSE) == 0 &&
- (strcmp(property, "legacy") == 0 ||
- strcmp(property, "none") == 0)) {
-
- legacy = B_TRUE;
- }
- if (!legacy) {
- compare = compare_mountpoints;
- clp->cl_sorted = B_TRUE;
- }
- }
-
- clp->cl_pool = uu_list_pool_create("changelist_pool",
- sizeof (prop_changenode_t),
- offsetof(prop_changenode_t, cn_listnode),
- compare, 0);
- if (clp->cl_pool == NULL) {
- assert(uu_error() == UU_ERROR_NO_MEMORY);
- (void) zfs_error(zhp->zfs_hdl, EZFS_NOMEM, "internal error");
- changelist_free(clp);
- return (NULL);
- }
-
- clp->cl_list = uu_list_create(clp->cl_pool, NULL,
- clp->cl_sorted ? UU_LIST_SORTED : 0);
- clp->cl_gflags = gather_flags;
- clp->cl_mflags = mnt_flags;
-
- if (clp->cl_list == NULL) {
- assert(uu_error() == UU_ERROR_NO_MEMORY);
- (void) zfs_error(zhp->zfs_hdl, EZFS_NOMEM, "internal error");
- changelist_free(clp);
- return (NULL);
- }
-
- /*
- * If this is a rename or the 'zoned' property, we pretend we're
- * changing the mountpoint and flag it so we can catch all children in
- * change_one().
- *
- * Flag cl_alldependents to catch all children plus the dependents
- * (clones) that are not in the hierarchy.
- */
- if (prop == ZFS_PROP_NAME) {
- clp->cl_prop = ZFS_PROP_MOUNTPOINT;
- clp->cl_alldependents = B_TRUE;
- } else if (prop == ZFS_PROP_ZONED) {
- clp->cl_prop = ZFS_PROP_MOUNTPOINT;
- clp->cl_allchildren = B_TRUE;
- } else if (prop == ZFS_PROP_CANMOUNT) {
- clp->cl_prop = ZFS_PROP_MOUNTPOINT;
- } else if (prop == ZFS_PROP_VOLSIZE) {
- clp->cl_prop = ZFS_PROP_MOUNTPOINT;
- } else {
- clp->cl_prop = prop;
- }
- clp->cl_realprop = prop;
-
- if (clp->cl_prop != ZFS_PROP_MOUNTPOINT &&
- clp->cl_prop != ZFS_PROP_SHARENFS &&
- clp->cl_prop != ZFS_PROP_SHARESMB)
- return (clp);
-
- /*
- * If watching SHARENFS or SHARESMB then
- * also watch its companion property.
- */
- if (clp->cl_prop == ZFS_PROP_SHARENFS)
- clp->cl_shareprop = ZFS_PROP_SHARESMB;
- else if (clp->cl_prop == ZFS_PROP_SHARESMB)
- clp->cl_shareprop = ZFS_PROP_SHARENFS;
-
- if (clp->cl_alldependents) {
- if (zfs_iter_dependents(zhp, B_TRUE, change_one, clp) != 0) {
- changelist_free(clp);
- return (NULL);
- }
- } else if (zfs_iter_children(zhp, change_one, clp) != 0) {
- changelist_free(clp);
- return (NULL);
- }
-
- /*
- * We have to re-open ourselves because we auto-close all the handles
- * and can't tell the difference.
- */
- if ((temp = zfs_open(zhp->zfs_hdl, zfs_get_name(zhp),
- ZFS_TYPE_DATASET)) == NULL) {
- changelist_free(clp);
- return (NULL);
- }
-
- /*
- * Always add ourself to the list. We add ourselves to the end so that
- * we're the last to be unmounted.
- */
- if ((cn = zfs_alloc(zhp->zfs_hdl,
- sizeof (prop_changenode_t))) == NULL) {
- zfs_close(temp);
- changelist_free(clp);
- return (NULL);
- }
-
- cn->cn_handle = temp;
- cn->cn_mounted = (clp->cl_gflags & CL_GATHER_MOUNT_ALWAYS) ||
- zfs_is_mounted(temp, NULL);
- cn->cn_shared = zfs_is_shared(temp);
- cn->cn_zoned = zfs_prop_get_int(zhp, ZFS_PROP_ZONED);
- cn->cn_needpost = B_TRUE;
-
- uu_list_node_init(cn, &cn->cn_listnode, clp->cl_pool);
- if (clp->cl_sorted) {
- uu_list_index_t idx;
- (void) uu_list_find(clp->cl_list, cn, NULL, &idx);
- uu_list_insert(clp->cl_list, cn, idx);
- } else {
- /*
- * Add the target dataset to the end of the list.
- * The list is not really unsorted. The list will be
- * in reverse dataset name order. This is necessary
- * when the original mountpoint is legacy or none.
- */
- verify(uu_list_insert_after(clp->cl_list,
- uu_list_last(clp->cl_list), cn) == 0);
- }
-
- /*
- * If the mountpoint property was previously 'legacy', or 'none',
- * record it as the behavior of changelist_postfix() will be different.
- */
- if ((clp->cl_prop == ZFS_PROP_MOUNTPOINT) && legacy) {
- /*
- * do not automatically mount ex-legacy datasets if
- * we specifically set canmount to noauto
- */
- if (zfs_prop_get_int(zhp, ZFS_PROP_CANMOUNT) !=
- ZFS_CANMOUNT_NOAUTO)
- clp->cl_waslegacy = B_TRUE;
- }
-
- return (clp);
-}