UBUNTU: SAUCE: (noup) Update zfs to 0.6.5.6-0ubuntu26

BugLink: https://bugs.launchpad.net/bugs/1769937

Sync with zfsutils-linux 0.6.5.6-0ubuntu26 to pick up fixes for
LP#1769937.

Upstream ZFS fix 4ceb8dd6fdfd ("Fix 'zpool create -t <tempname>'")
fixes error message and error exit when using the -t option
when creating a pool.
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Acked-by: Stefan Bader <stefan.bader@canonical.com>
Acked-by: Khalid Elmously <khalid.elmously@canonical.com>
Signed-off-by: Kleber Sacilotto de Souza <kleber.souza@canonical.com>

zfs/META

@@ -2,7 +2,7 @@ Meta:         1
 Name:         zfs
 Branch:       1.0
 Version:      0.6.5.6
-Release:      0ubuntu25
+Release:      0ubuntu26
 Release-Tags: relext
 License:      CDDL
 Author:       OpenZFS on Linux

zfs/module/zfs/zfs_ioctl.c

@@ -1438,6 +1438,7 @@ zfs_ioc_pool_create(zfs_cmd_t *zc)
 	nvlist_t *config, *props = NULL;
 	nvlist_t *rootprops = NULL;
 	nvlist_t *zplprops = NULL;
+	char *spa_name = zc->zc_name;
 
 	if ((error = get_nvlist(zc->zc_nvlist_conf, zc->zc_nvlist_conf_size,
 	    zc->zc_iflags, &config)))
@@ -1453,6 +1454,7 @@ zfs_ioc_pool_create(zfs_cmd_t *zc)
 	if (props) {
 		nvlist_t *nvl = NULL;
 		uint64_t version = SPA_VERSION;
+		char *tname;
 
 		(void) nvlist_lookup_uint64(props,
 		    zpool_prop_to_name(ZPOOL_PROP_VERSION), &version);
@@ -1475,6 +1477,10 @@ zfs_ioc_pool_create(zfs_cmd_t *zc)
 		    zplprops, NULL);
 		if (error != 0)
 			goto pool_props_bad;
+
+		if (nvlist_lookup_string(props,
+		    zpool_prop_to_name(ZPOOL_PROP_TNAME), &tname) == 0)
+			spa_name = tname;
 	}
 
 	error = spa_create(zc->zc_name, config, props, zplprops);
@@ -1482,9 +1488,9 @@ zfs_ioc_pool_create(zfs_cmd_t *zc)
 	/*
 	 * Set the remaining root properties
 	 */
-	if (!error && (error = zfs_set_prop_nvlist(zc->zc_name,
+	if (!error && (error = zfs_set_prop_nvlist(spa_name,
 	    ZPROP_SRC_LOCAL, rootprops, NULL)) != 0)
-		(void) spa_destroy(zc->zc_name);
+		(void) spa_destroy(spa_name);
 
 pool_props_bad:
 	nvlist_free(rootprops);