X-Git-Url: https://git.camperquake.de/gitweb.cgi?a=blobdiff_plain;f=cmd%2Fzpool%2Fzpool_main.c;h=da9f3e1a337bb8169e116a5d4e4b4653e0d056d9;hb=131cc95ca78b8552c13555d2cded791808008ff3;hp=19f1f28a9ed8eab5d6d917c128c9e281d302ad0c;hpb=51a3ae72d23d89d35a4a67059b39e870d66a2495;p=zfs.git

diff --git a/cmd/zpool/zpool_main.c b/cmd/zpool/zpool_main.c
index 19f1f28..da9f3e1 100644
--- a/cmd/zpool/zpool_main.c
+++ b/cmd/zpool/zpool_main.c
@@ -63,6 +63,7 @@ static int zpool_do_destroy(int, char **);
 
 static int zpool_do_add(int, char **);
 static int zpool_do_remove(int, char **);
+static int zpool_do_labelclear(int, char **);
 
 static int zpool_do_list(int, char **);
 static int zpool_do_iostat(int, char **);
@@ -123,6 +124,7 @@ typedef enum {
 	HELP_HISTORY,
 	HELP_IMPORT,
 	HELP_IOSTAT,
+	HELP_LABELCLEAR,
 	HELP_LIST,
 	HELP_OFFLINE,
 	HELP_ONLINE,
@@ -162,6 +164,8 @@ static zpool_command_t command_table[] = {
 	{ "add",	zpool_do_add,		HELP_ADD		},
 	{ "remove",	zpool_do_remove,	HELP_REMOVE		},
 	{ NULL },
+	{ "labelclear",	zpool_do_labelclear,	HELP_LABELCLEAR		},
+	{ NULL },
 	{ "list",	zpool_do_list,		HELP_LIST		},
 	{ "iostat",	zpool_do_iostat,	HELP_IOSTAT		},
 	{ "status",	zpool_do_status,	HELP_STATUS		},
@@ -233,6 +237,8 @@ get_usage(zpool_help_t idx) {
 	case HELP_IOSTAT:
 		return (gettext("\tiostat [-v] [-T d|u] [pool] ... [interval "
 		    "[count]]\n"));
+	case HELP_LABELCLEAR:
+		return (gettext("\tlabelclear [-f] <vdev>\n"));
 	case HELP_LIST:
 		return (gettext("\tlist [-H] [-o property[,...]] "
 		    "[-T d|u] [pool] ... [interval [count]]\n"));
@@ -642,6 +648,127 @@ zpool_do_remove(int argc, char **argv)
 }
 
 /*
+ * zpool labelclear <vdev>
+ *
+ * Verifies that the vdev is not active and zeros out the label information
+ * on the device.
+ */
+int
+zpool_do_labelclear(int argc, char **argv)
+{
+	char *vdev, *name;
+	int c, fd = -1, ret = 0;
+	pool_state_t state;
+	boolean_t inuse = B_FALSE;
+	boolean_t force = B_FALSE;
+
+	/* check options */
+	while ((c = getopt(argc, argv, "f")) != -1) {
+		switch (c) {
+		case 'f':
+			force = B_TRUE;
+			break;
+		default:
+			(void) fprintf(stderr, gettext("invalid option '%c'\n"),
+			    optopt);
+			usage(B_FALSE);
+		}
+	}
+
+	argc -= optind;
+	argv += optind;
+
+	/* get vdev name */
+	if (argc < 1) {
+		(void) fprintf(stderr, gettext("missing vdev device name\n"));
+		usage(B_FALSE);
+	}
+
+	vdev = argv[0];
+	if ((fd = open(vdev, O_RDWR)) < 0) {
+		(void) fprintf(stderr, gettext("Unable to open %s\n"), vdev);
+		return (B_FALSE);
+	}
+
+	name = NULL;
+	if (zpool_in_use(g_zfs, fd, &state, &name, &inuse) != 0) {
+		if (force)
+			goto wipe_label;
+
+		(void) fprintf(stderr,
+		    gettext("Unable to determine pool state for %s\n"
+		    "Use -f to force the clearing any label data\n"), vdev);
+
+		return (1);
+	}
+
+	if (inuse) {
+		switch (state) {
+		default:
+		case POOL_STATE_ACTIVE:
+		case POOL_STATE_SPARE:
+		case POOL_STATE_L2CACHE:
+			(void) fprintf(stderr,
+			    gettext("labelclear operation failed.\n"
+			    "\tVdev %s is a member (%s), of pool \"%s\".\n"
+			    "\tTo remove label information from this device, "
+			    "export or destroy\n\tthe pool, or remove %s from "
+			    "the configuration of this pool\n\tand retry the "
+			    "labelclear operation.\n"),
+			    vdev, zpool_pool_state_to_name(state), name, vdev);
+			ret = 1;
+			goto errout;
+
+		case POOL_STATE_EXPORTED:
+			if (force)
+				break;
+
+			(void) fprintf(stderr,
+			    gettext("labelclear operation failed.\n\tVdev "
+			    "%s is a member of the exported pool \"%s\".\n"
+			    "\tUse \"zpool labelclear -f %s\" to force the "
+			    "removal of label\n\tinformation.\n"),
+			    vdev, name, vdev);
+			ret = 1;
+			goto errout;
+
+		case POOL_STATE_POTENTIALLY_ACTIVE:
+			if (force)
+				break;
+
+			(void) fprintf(stderr,
+			    gettext("labelclear operation failed.\n"
+			    "\tVdev %s is a member of the pool \"%s\".\n"
+			    "\tThis pool is unknown to this system, but may "
+			    "be active on\n\tanother system. Use "
+			    "\'zpool labelclear -f %s\' to force the\n"
+			    "\tremoval of label information.\n"),
+			    vdev, name, vdev);
+			ret = 1;
+			goto errout;
+
+		case POOL_STATE_DESTROYED:
+			/* inuse should never be set for a destroyed pool... */
+			break;
+		}
+	}
+
+wipe_label:
+	if (zpool_clear_label(fd) != 0) {
+		(void) fprintf(stderr,
+		    gettext("Label clear failed on vdev %s\n"), vdev);
+		ret = 1;
+	}
+
+errout:
+	close(fd);
+	if (name != NULL)
+		free(name);
+
+	return (ret);
+}
+
+/*
  * zpool create [-fnd] [-o property=value] ...
  *		[-O file-system-property=value] ...
  *		[-R root] [-m mountpoint] <pool> <dev> ...