[CFR][ZFS] Show "previous device location" for removed vdevs

[Justin T. Gibbs]

When a vdev cannot be found during ZFS pool import/mount time, "zpool 
status"
reports the device GUID and a "device was at" message as a user aid.  This
patch provides the same behavior when a device is removed post zpool
mount/import.

--
Justin

-------------- next part --------------
diff -u -r -x cscope.out -x out -x ctl -x compile vendor/FreeBSD/head/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c SpectraBSD/head/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c
--- vendor/FreeBSD/head/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c	2011-02-28 13:51:22.120585187 -0700
+++ SpectraBSD/head/cddl/contrib/opensolaris/cmd/zpool/zpool_main.c	2011-06-08 17:22:53.450540438 -0600
@@ -1084,7 +1209,8 @@
 	}
 
 	if (nvlist_lookup_uint64(nv, ZPOOL_CONFIG_NOT_PRESENT,
-	    &notpresent) == 0) {
+	    &notpresent) == 0 ||
+	    vs->vs_state <= VDEV_STATE_CANT_OPEN) {
 		char *path;
 		verify(nvlist_lookup_string(nv, ZPOOL_CONFIG_PATH, &path) == 0);
 		(void) printf("  was %s", path);