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cstyle fixes
dsl_dataset_set_fsid_guid should use ZFS_SPACE_CHECK_RESERVED
dsl_dataset_set_fsid_guid _check and _sync func declared static,
removed from dsl_dataset.h
rewrite unique_valid
6333 ZFS should let the user specify or modify the fsid_guid of a dataset


2387 
2388         if (prop == ZPROP_INVAL) {
2389                 if (zfs_prop_userquota(propname))
2390                         return (zfs_prop_set_userquota(dsname, pair));
2391                 return (-1);
2392         }
2393 
2394         if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2395                 nvlist_t *attrs;
2396                 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2397                 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2398                     &pair) == 0);
2399         }
2400 
2401         if (zfs_prop_get_type(prop) == PROP_TYPE_STRING)
2402                 return (-1);
2403 
2404         VERIFY(0 == nvpair_value_uint64(pair, &intval));
2405 
2406         switch (prop) {



2407         case ZFS_PROP_QUOTA:
2408                 err = dsl_dir_set_quota(dsname, source, intval);
2409                 break;
2410         case ZFS_PROP_REFQUOTA:
2411                 err = dsl_dataset_set_refquota(dsname, source, intval);
2412                 break;
2413         case ZFS_PROP_FILESYSTEM_LIMIT:
2414         case ZFS_PROP_SNAPSHOT_LIMIT:
2415                 if (intval == UINT64_MAX) {
2416                         /* clearing the limit, just do it */
2417                         err = 0;
2418                 } else {
2419                         err = dsl_dir_activate_fs_ss_limit(dsname);
2420                 }
2421                 /*
2422                  * Set err to -1 to force the zfs_set_prop_nvlist code down the
2423                  * default path to set the value in the nvlist.
2424                  */
2425                 if (err == 0)
2426                         err = -1;




2387 
2388         if (prop == ZPROP_INVAL) {
2389                 if (zfs_prop_userquota(propname))
2390                         return (zfs_prop_set_userquota(dsname, pair));
2391                 return (-1);
2392         }
2393 
2394         if (nvpair_type(pair) == DATA_TYPE_NVLIST) {
2395                 nvlist_t *attrs;
2396                 VERIFY(nvpair_value_nvlist(pair, &attrs) == 0);
2397                 VERIFY(nvlist_lookup_nvpair(attrs, ZPROP_VALUE,
2398                     &pair) == 0);
2399         }
2400 
2401         if (zfs_prop_get_type(prop) == PROP_TYPE_STRING)
2402                 return (-1);
2403 
2404         VERIFY(0 == nvpair_value_uint64(pair, &intval));
2405 
2406         switch (prop) {
2407         case ZFS_PROP_FSID_GUID:
2408                 err = dsl_dataset_set_fsid_guid(dsname, source, intval);
2409                 break;
2410         case ZFS_PROP_QUOTA:
2411                 err = dsl_dir_set_quota(dsname, source, intval);
2412                 break;
2413         case ZFS_PROP_REFQUOTA:
2414                 err = dsl_dataset_set_refquota(dsname, source, intval);
2415                 break;
2416         case ZFS_PROP_FILESYSTEM_LIMIT:
2417         case ZFS_PROP_SNAPSHOT_LIMIT:
2418                 if (intval == UINT64_MAX) {
2419                         /* clearing the limit, just do it */
2420                         err = 0;
2421                 } else {
2422                         err = dsl_dir_activate_fs_ss_limit(dsname);
2423                 }
2424                 /*
2425                  * Set err to -1 to force the zfs_set_prop_nvlist code down the
2426                  * default path to set the value in the nvlist.
2427                  */
2428                 if (err == 0)
2429                         err = -1;