--- util-linux-ng-2.13/disk-utils/blockdev.c.fix12	2007-11-12 02:23:51 +0300
+++ util-linux-ng-2.13/disk-utils/blockdev.c	2007-11-12 02:30:31 +0300
@@ -48,8 +48,12 @@ struct bdc {
 	{ "--getfra", "BLKFRAGET", BLKFRAGET, ARGLINTG, -1, NULL, N_("get filesystem readahead") },
 	{ "--flushbufs", "BLKFLSBUF", BLKFLSBUF, ARGNONE, 0, NULL, N_("flush buffers") },
 	{ "--rereadpt", "BLKRRPART", BLKRRPART, ARGNONE, 0, NULL,
 	  N_("reread partition table") },
+#ifdef BLKPG
+	{ "--rmpart", "BLKPG", BLKPG, ARGINTAP, 0, "PARTNO", N_("disable partition") },
+	{ "--rmparts", "BLKPG", BLKPG, ARGNONE, 0, NULL, N_("disable all partitions") },
+#endif
 };
 
 #define SIZE(a)	(sizeof(a)/sizeof((a)[0]))
 
@@ -88,8 +92,37 @@ find_cmd(char *s) {
 			return j;
 	return -1;
 }
 
+#ifdef BLKPG
+static int
+disable_partition(int fd, int partno) {
+	struct blkpg_partition part = {
+		.pno = partno,
+	};
+	struct blkpg_ioctl_arg io = {
+		.op = BLKPG_DEL_PARTITION,
+		.datalen = sizeof(part),
+		.data = &part,
+	};
+	int res;
+
+	res = ioctl(fd, BLKPG, &io);
+	if (res < 0)
+		return 0;
+	return 1;
+}
+
+static int
+disable_partitions(int fd) {
+	int p, res = 0;
+
+	for (p = 1; p <= 256; p++)
+		res += disable_partition(fd, p);
+	return res ? 0 : -1;
+}
+#endif
+
 void do_commands(int fd, char **argv, int d);
 void report_header(void);
 void report_device(char *device, int quiet);
 void report_all_devices(void);
@@ -205,8 +238,14 @@ do_commands(int fd, char **argv, int d) 
 
 		switch(bdcms[j].argtype) {
 		default:
 		case ARGNONE:
+#ifdef BLKPG
+			if (bdcms[j].ioc == BLKPG) {
+				res = disable_partitions(fd);
+				break;
+			}
+#endif
 			res = ioctl(fd, bdcms[j].ioc, 0);
 			break;
 		case ARGINTA:
 			if (i == d-1) {
@@ -222,8 +261,15 @@ do_commands(int fd, char **argv, int d) 
 				fprintf(stderr, _("%s requires an argument\n"),
 					bdcms[j].name);
 				usage();
 			}
+#ifdef BLKPG
+			if (bdcms[j].ioc == BLKPG) {
+				iarg = atoi(argv[++i]);
+				res = disable_partition(fd, iarg) ? 0 : -1;
+				break;
+			}
+#endif
 			iarg = atoi(argv[++i]);
 			res = ioctl(fd, bdcms[j].ioc, &iarg);
 			break;
 		case ARGINTP: