Add '-u' - nomount flag for zfs set
This commit adds '-u' flag for zfs set operation. With this flag, mountpoint, sharenfs and sharesmb properties can be updated without actually mounting or sharing the dataset. Previously, if dataset was unmounted, and mountpoint property was updated, dataset was not mounted after the update. This behavior is changed in #15240. We mount the dataset whenever mountpoint property is updated, regardless if it's mounted or not. To provide the user with option to keep the dataset unmounted and still update the mountpoint without mounting the dataset, '-u' flag can be used. If any of mountpoint, sharenfs or sharesmb properties are updated with '-u' flag, the property is set to desired value but the operation to (re/un)mount and/or (re/un)share the dataset is not performed and dataset remains as it was before. Reviewed-by: Alexander Motin <mav@FreeBSD.org> Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Umer Saleem <usaleem@ixsystems.com> Closes #15322
This commit is contained in:
Umer Saleem
GitHub
parent
249d759caf
commit
4e16964e1c
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@ -339,7 +339,7 @@ get_usage(zfs_help_t idx)
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"\tsend [-nVvPe] -t <receive_resume_token>\n"
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"\tsend [-PnVv] --saved filesystem\n"));
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case HELP_SET:
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return (gettext("\tset <property=value> ... "
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return (gettext("\tset [-u] <property=value> ... "
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"<filesystem|volume|snapshot> ...\n"));
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case HELP_SHARE:
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return (gettext("\tshare [-l] <-a [nfs|smb] | filesystem>\n"));
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@ -4206,8 +4206,8 @@ out:
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static int
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set_callback(zfs_handle_t *zhp, void *data)
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{
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nvlist_t *props = data;
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int ret = zfs_prop_set_list(zhp, props);
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zprop_set_cbdata_t *cb = data;
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int ret = zfs_prop_set_list_flags(zhp, cb->cb_proplist, cb->cb_flags);
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if (ret != 0 || libzfs_errno(g_zfs) != EZFS_SUCCESS) {
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switch (libzfs_errno(g_zfs)) {
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@ -4227,25 +4227,35 @@ set_callback(zfs_handle_t *zhp, void *data)
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static int
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zfs_do_set(int argc, char **argv)
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{
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nvlist_t *props = NULL;
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zprop_set_cbdata_t cb = { 0 };
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int ds_start = -1; /* argv idx of first dataset arg */
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int ret = 0;
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int i;
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int i, c;
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/* check for options */
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if (argc > 1 && argv[1][0] == '-') {
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/* check options */
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while ((c = getopt(argc, argv, "u")) != -1) {
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switch (c) {
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case 'u':
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cb.cb_flags |= ZFS_SET_NOMOUNT;
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break;
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case '?':
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default:
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(void) fprintf(stderr, gettext("invalid option '%c'\n"),
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argv[1][1]);
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optopt);
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usage(B_FALSE);
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}
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}
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argc -= optind;
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argv += optind;
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/* check number of arguments */
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if (argc < 2) {
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if (argc < 1) {
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(void) fprintf(stderr, gettext("missing arguments\n"));
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usage(B_FALSE);
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}
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if (argc < 3) {
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if (strchr(argv[1], '=') == NULL) {
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if (argc < 2) {
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if (strchr(argv[0], '=') == NULL) {
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(void) fprintf(stderr, gettext("missing property=value "
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"argument(s)\n"));
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} else {
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@ -4256,7 +4266,7 @@ zfs_do_set(int argc, char **argv)
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}
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/* validate argument order: prop=val args followed by dataset args */
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for (i = 1; i < argc; i++) {
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for (i = 0; i < argc; i++) {
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if (strchr(argv[i], '=') != NULL) {
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if (ds_start > 0) {
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/* out-of-order prop=val argument */
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@ -4274,20 +4284,20 @@ zfs_do_set(int argc, char **argv)
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}
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/* Populate a list of property settings */
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if (nvlist_alloc(&props, NV_UNIQUE_NAME, 0) != 0)
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if (nvlist_alloc(&cb.cb_proplist, NV_UNIQUE_NAME, 0) != 0)
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nomem();
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for (i = 1; i < ds_start; i++) {
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if (!parseprop(props, argv[i])) {
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for (i = 0; i < ds_start; i++) {
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if (!parseprop(cb.cb_proplist, argv[i])) {
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ret = -1;
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goto error;
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}
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}
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ret = zfs_for_each(argc - ds_start, argv + ds_start, 0,
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ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, props);
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ZFS_TYPE_DATASET, NULL, NULL, 0, set_callback, &cb);
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error:
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nvlist_free(props);
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nvlist_free(cb.cb_proplist);
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return (ret);
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}
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@ -532,6 +532,7 @@ _LIBZFS_H nvlist_t *zfs_valid_proplist(libzfs_handle_t *, zfs_type_t,
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_LIBZFS_H const char *zfs_prop_to_name(zfs_prop_t);
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_LIBZFS_H int zfs_prop_set(zfs_handle_t *, const char *, const char *);
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_LIBZFS_H int zfs_prop_set_list(zfs_handle_t *, nvlist_t *);
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_LIBZFS_H int zfs_prop_set_list_flags(zfs_handle_t *, nvlist_t *, int);
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_LIBZFS_H int zfs_prop_get(zfs_handle_t *, zfs_prop_t, char *, size_t,
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zprop_source_t *, char *, size_t, boolean_t);
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_LIBZFS_H int zfs_prop_get_recvd(zfs_handle_t *, const char *, char *, size_t,
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@ -654,6 +655,13 @@ typedef struct zprop_get_cbdata {
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vdev_cbdata_t cb_vdevs;
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} zprop_get_cbdata_t;
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#define ZFS_SET_NOMOUNT 1
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typedef struct zprop_set_cbdata {
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int cb_flags;
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nvlist_t *cb_proplist;
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} zprop_set_cbdata_t;
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_LIBZFS_H void zprop_print_one_property(const char *, zprop_get_cbdata_t *,
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const char *, const char *, zprop_source_t, const char *,
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const char *);
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@ -396,6 +396,7 @@
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<elf-symbol name='zfs_prop_readonly' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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<elf-symbol name='zfs_prop_set' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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<elf-symbol name='zfs_prop_set_list' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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<elf-symbol name='zfs_prop_set_list_flags' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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<elf-symbol name='zfs_prop_setonce' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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<elf-symbol name='zfs_prop_string_to_index' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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<elf-symbol name='zfs_prop_to_name' type='func-type' binding='global-binding' visibility='default-visibility' is-defined='yes'/>
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@ -4428,6 +4429,12 @@
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<parameter type-id='5ce45b60' name='props'/>
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<return type-id='95e97e5e'/>
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</function-decl>
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<function-decl name='zfs_prop_set_list_flags' mangled-name='zfs_prop_set_list_flags' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_set_list_flags'>
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<parameter type-id='9200a744' name='zhp'/>
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<parameter type-id='5ce45b60' name='props'/>
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<parameter type-id='95e97e5e' name='flags'/>
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<return type-id='95e97e5e'/>
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</function-decl>
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<function-decl name='zfs_prop_inherit' mangled-name='zfs_prop_inherit' visibility='default' binding='global' size-in-bits='64' elf-symbol-id='zfs_prop_inherit'>
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<parameter type-id='9200a744' name='zhp'/>
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<parameter type-id='80f4b756' name='propname'/>
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@ -105,6 +105,15 @@ changelist_prefix(prop_changelist_t *clp)
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clp->cl_prop != ZFS_PROP_SHARESMB)
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return (0);
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/*
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* If CL_GATHER_DONT_UNMOUNT is set, don't want to unmount/unshare and
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* later (re)mount/(re)share the filesystem in postfix phase, so we
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* return from here. If filesystem is mounted or unmounted, leave it
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* as it is.
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*/
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if (clp->cl_gflags & CL_GATHER_DONT_UNMOUNT)
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return (0);
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if ((walk = uu_avl_walk_start(clp->cl_tree, UU_WALK_ROBUST)) == NULL)
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return (-1);
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@ -129,8 +138,6 @@ changelist_prefix(prop_changelist_t *clp)
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*/
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switch (clp->cl_prop) {
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case ZFS_PROP_MOUNTPOINT:
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if (clp->cl_gflags & CL_GATHER_DONT_UNMOUNT)
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break;
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if (zfs_unmount(cn->cn_handle, NULL,
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clp->cl_mflags) != 0) {
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ret = -1;
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@ -164,9 +171,8 @@ changelist_prefix(prop_changelist_t *clp)
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* reshare the filesystems as necessary. In changelist_gather() we recorded
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* whether the filesystem was previously shared or mounted. The action we take
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* depends on the previous state, and whether the value was previously 'legacy'.
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* For non-legacy properties, we only remount/reshare the filesystem if it was
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* previously mounted/shared. Otherwise, we always remount/reshare the
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* filesystem.
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* For non-legacy properties, we always remount/reshare the filesystem,
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* if CL_GATHER_DONT_UNMOUNT is not set.
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*/
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int
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changelist_postfix(prop_changelist_t *clp)
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@ -177,6 +183,14 @@ changelist_postfix(prop_changelist_t *clp)
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boolean_t commit_smb_shares = B_FALSE;
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boolean_t commit_nfs_shares = B_FALSE;
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/*
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* If CL_GATHER_DONT_UNMOUNT is set, it means we don't want to (un)mount
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* or (re/un)share the filesystem, so we return from here. If filesystem
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* is mounted or unmounted, leave it as it is.
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*/
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if (clp->cl_gflags & CL_GATHER_DONT_UNMOUNT)
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return (0);
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/*
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* If we're changing the mountpoint, attempt to destroy the underlying
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* mountpoint. All other datasets will have inherited from this dataset
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@ -239,8 +253,7 @@ changelist_postfix(prop_changelist_t *clp)
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needs_key = (zfs_prop_get_int(cn->cn_handle,
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ZFS_PROP_KEYSTATUS) == ZFS_KEYSTATUS_UNAVAILABLE);
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mounted = (clp->cl_gflags & CL_GATHER_DONT_UNMOUNT) ||
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zfs_is_mounted(cn->cn_handle, NULL);
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mounted = zfs_is_mounted(cn->cn_handle, NULL);
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if (!mounted && !needs_key && (cn->cn_mounted ||
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(((clp->cl_prop == ZFS_PROP_MOUNTPOINT &&
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@ -1771,14 +1771,24 @@ error:
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return (ret);
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}
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/*
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* Given an nvlist of property names and values, set the properties for the
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* given dataset.
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*/
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int
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zfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props)
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{
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return (zfs_prop_set_list_flags(zhp, props, 0));
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}
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/*
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* Given an nvlist of property names, values and flags, set the properties
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* for the given dataset. If ZFS_SET_NOMOUNT is set, it allows to update
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* mountpoint, sharenfs and sharesmb properties without (un/re)mounting
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* and (un/re)sharing the dataset.
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*/
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int
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zfs_prop_set_list_flags(zfs_handle_t *zhp, nvlist_t *props, int flags)
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{
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zfs_cmd_t zc = {"\0"};
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int ret = -1;
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@ -1848,7 +1858,9 @@ zfs_prop_set_list(zfs_handle_t *zhp, nvlist_t *props)
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if (prop != ZFS_PROP_CANMOUNT ||
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(fnvpair_value_uint64(elem) == ZFS_CANMOUNT_OFF &&
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zfs_is_mounted(zhp, NULL))) {
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cls[cl_idx] = changelist_gather(zhp, prop, 0, 0);
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cls[cl_idx] = changelist_gather(zhp, prop,
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((flags & ZFS_SET_NOMOUNT) ?
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CL_GATHER_DONT_UNMOUNT : 0), 0);
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if (cls[cl_idx] == NULL)
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goto error;
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}
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@ -1248,10 +1248,18 @@ Otherwise, they are automatically remounted in the new location if the property
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was previously
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.Sy legacy
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or
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.Sy none ,
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or if they were mounted before the property was changed.
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.Sy none .
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In addition, any shared file systems are unshared and shared in the new
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location.
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.Pp
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When the
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.Sy mountpoint
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property is set with
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.Nm zfs Cm set Fl u
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, the
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.Sy mountpoint
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property is updated but dataset is not mounted or unmounted and remains
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as it was before.
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.It Sy nbmand Ns = Ns Sy on Ns | Ns Sy off
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Controls whether the file system should be mounted with
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.Sy nbmand
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@ -1656,6 +1664,13 @@ by default.
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This means that any additional access control
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(disallow specific user specific access etc) must be done on the underlying file
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system.
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.Pp
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When the
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.Sy sharesmb
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property is updated with
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.Nm zfs Cm set Fl u
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, the property is set to desired value, but the operation to share, reshare
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or unshare the the dataset is not performed.
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.It Sy sharenfs Ns = Ns Sy on Ns | Ns Sy off Ns | Ns Ar opts
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Controls whether the file system is shared via NFS, and what options are to be
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used.
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@ -1699,6 +1714,13 @@ or if they were shared before the property was changed.
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If the new property is
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.Sy off ,
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the file systems are unshared.
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.Pp
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When the
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.Sy sharenfs
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property is updated with
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.Nm zfs Cm set Fl u
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, the property is set to desired value, but the operation to share, reshare
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or unshare the the dataset is not performed.
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.It Sy logbias Ns = Ns Sy latency Ns | Ns Sy throughput
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Provide a hint to ZFS about handling of synchronous requests in this dataset.
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If
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@ -39,6 +39,7 @@
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.Sh SYNOPSIS
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.Nm zfs
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.Cm set
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.Op Fl u
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.Ar property Ns = Ns Ar value Oo Ar property Ns = Ns Ar value Oc Ns …
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.Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot Ns …
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.Nm zfs
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@ -60,6 +61,7 @@
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.It Xo
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.Nm zfs
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.Cm set
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.Op Fl u
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.Ar property Ns = Ns Ar value Oo Ar property Ns = Ns Ar value Oc Ns …
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.Ar filesystem Ns | Ns Ar volume Ns | Ns Ar snapshot Ns …
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.Xc
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@ -79,6 +81,11 @@ For more information, see the
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.Em User Properties
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section of
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.Xr zfsprops 7 .
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.Bl -tag -width "-u"
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.It Fl u
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Update mountpoint, sharenfs, sharesmb property but do not mount or share the
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dataset.
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.El
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.It Xo
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.Nm zfs
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.Cm get
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|
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@ -281,7 +281,7 @@ tests = ['cache_001_pos', 'cache_002_neg', 'canmount_001_pos',
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'user_property_004_pos', 'version_001_neg', 'zfs_set_001_neg',
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'zfs_set_002_neg', 'zfs_set_003_neg', 'property_alias_001_pos',
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'mountpoint_003_pos', 'ro_props_001_pos', 'zfs_set_keylocation',
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'zfs_set_feature_activation']
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'zfs_set_feature_activation', 'zfs_set_nomount']
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tags = ['functional', 'cli_root', 'zfs_set']
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[tests/functional/cli_root/zfs_share]
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|
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@ -212,7 +212,7 @@ tests = ['cache_001_pos', 'cache_002_neg', 'canmount_001_pos',
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'user_property_001_pos', 'user_property_003_neg', 'readonly_001_pos',
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'user_property_004_pos', 'version_001_neg',
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'zfs_set_003_neg', 'property_alias_001_pos',
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'zfs_set_keylocation', 'zfs_set_feature_activation']
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'zfs_set_keylocation', 'zfs_set_feature_activation', 'zfs_set_nomount']
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tags = ['functional', 'cli_root', 'zfs_set']
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[tests/functional/cli_root/zfs_snapshot]
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|
|
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@ -870,6 +870,7 @@ nobase_dist_datadir_zfs_tests_tests_SCRIPTS += \
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functional/cli_root/zfs_set/zfs_set_003_neg.ksh \
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functional/cli_root/zfs_set/zfs_set_feature_activation.ksh \
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functional/cli_root/zfs_set/zfs_set_keylocation.ksh \
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functional/cli_root/zfs_set/zfs_set_nomount.ksh \
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functional/cli_root/zfs_share/cleanup.ksh \
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functional/cli_root/zfs_share/setup.ksh \
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functional/cli_root/zfs_share/zfs_share_001_pos.ksh \
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|
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@ -0,0 +1,103 @@
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#!/bin/ksh -p
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#
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# CDDL HEADER START
|
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#
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||||
# 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.
|
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#
|
||||
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
|
||||
# or https://opensource.org/licenses/CDDL-1.0.
|
||||
# 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 (c) 2023 by iXsystems, Inc. All rights reserved.
|
||||
#
|
||||
|
||||
. $STF_SUITE/include/libtest.shlib
|
||||
. $STF_SUITE/tests/functional/cli_root/zfs_set/zfs_set_common.kshlib
|
||||
|
||||
#
|
||||
# DESCRIPTION:
|
||||
# 'zfs set -u' should update the mountpoint, sharenfs and sharesmb
|
||||
# properties without mounting and sharing the dataset. Validate the
|
||||
# bevaior while dataset is mounted and unmounted.
|
||||
#
|
||||
# STRATEGY:
|
||||
# 1. Confirm dataset is currently mounted
|
||||
# 2. Update the mountpoint with -u flag
|
||||
# 3. Confirm mountpoint property is updated with new value
|
||||
# 4. Confirm dataset is still mounted at previous mountpoint
|
||||
# 5. Unmount the dataset
|
||||
# 6. Confirm dataset is unmounted
|
||||
# 7. Mount the dataset
|
||||
# 8. Confirm dataset is mounted at new mountpoint, that was set with -u flag.
|
||||
# 9. Update and mount the dataset at previous mountpoint.
|
||||
# 10. Unmount the dataset
|
||||
# 11. Update mountpoint property with zfs set -u
|
||||
# 12. Confirm dataset is not mounted
|
||||
# 13. Update sharenfs property with zfs set -u
|
||||
# 14. Confirm dataset is not mounted
|
||||
# 15. Update sharesmb property with zfs set -u
|
||||
# 16. Confirm dataset is not mounted
|
||||
# 17. Mount the dataset and confirm dataset is mounted at new mountpoint
|
||||
#
|
||||
|
||||
verify_runnable "both"
|
||||
|
||||
function cleanup
|
||||
{
|
||||
log_must zfs set sharenfs=off $TESTPOOL/$TESTFS
|
||||
if is_linux; then
|
||||
log_must zfs set sharesmb=off $TESTPOOL/$TESTFS
|
||||
fi
|
||||
rm -r $newmpt
|
||||
}
|
||||
|
||||
log_assert "'zfs set -u' sets the mountpoint and share properties without " \
|
||||
"mounting the dataset"
|
||||
log_onexit cleanup
|
||||
|
||||
oldmpt=$(get_prop mountpoint $TESTPOOL/$TESTFS)
|
||||
newmpt=$TEST_BASE_DIR/abc
|
||||
|
||||
# Test while dataset is mounted
|
||||
log_must ismounted $TESTPOOL/$TESTFS
|
||||
log_must zfs set -u mountpoint=$newmpt $TESTPOOL/$TESTFS
|
||||
log_must check_user_prop $TESTPOOL/$TESTFS mountpoint $newmpt
|
||||
log_must eval "[[ "$(mount | grep $TESTPOOL/$TESTFS | awk '{print $3}')" == $oldmpt ]]"
|
||||
log_must zfs unmount $TESTPOOL/$TESTFS
|
||||
log_mustnot ismounted $TESTPOOL/$TESTFS
|
||||
log_must zfs mount $TESTPOOL/$TESTFS
|
||||
log_must eval "[[ "$(mount | grep $TESTPOOL/$TESTFS | awk '{print $3}')" == $newmpt ]]"
|
||||
|
||||
# Test while dataset is unmounted
|
||||
log_must zfs set mountpoint=$oldmpt $TESTPOOL/$TESTFS
|
||||
log_must ismounted $TESTPOOL/$TESTFS
|
||||
log_must zfs unmount $TESTPOOL/$TESTFS
|
||||
log_must zfs set -u mountpoint=$newmpt $TESTPOOL/$TESTFS
|
||||
log_mustnot ismounted $TESTPOOL/$TESTFS
|
||||
log_must zfs set -u sharenfs=on $TESTPOOL/$TESTFS
|
||||
log_mustnot ismounted $TESTPOOL/$TESTFS
|
||||
if is_linux; then
|
||||
log_must zfs set -u sharesmb=on $TESTPOOL/$TESTFS
|
||||
log_mustnot ismounted $TESTPOOL/$TESTFS
|
||||
fi
|
||||
log_must zfs mount $TESTPOOL/$TESTFS
|
||||
log_must check_user_prop $TESTPOOL/$TESTFS mountpoint $newmpt
|
||||
log_must eval "[[ "$(mount | grep $TESTPOOL/$TESTFS | awk '{print $3}')" == $newmpt ]]"
|
||||
|
||||
log_must zfs set mountpoint=$oldmpt $TESTPOOL/$TESTFS
|
||||
log_must ismounted $TESTPOOL/$TESTFS
|
||||
|
||||
log_pass "'zfs set -u' functions correctly"
|
||||
Loading…
Reference in New Issue