Add dm_task_no_open_count() to skip getting open_count.

WHATS_NEW_DM

@@ -1,5 +1,6 @@
-Version 1.00.22 -
+Version 1.01.00 -
 ============================
+  Add dm_task_no_open_count() to skip getting open_count.
 
 Version 1.00.21 - 7 Jan 2005
 ============================

libdm/.exported_symbols

@@ -20,6 +20,7 @@ dm_task_set_minor
 dm_task_set_sector
 dm_task_set_message
 dm_task_add_target
+dm_task_no_open_count
 dm_get_next_target
 dm_task_run
 dm_set_dev_dir

libdm/ioctl/libdm-iface.c

@@ -929,6 +929,13 @@ int dm_task_set_sector(struct dm_task *dmt, uint64_t sector)
 	return 1;
 }
 
+int dm_task_no_open_count(struct dm_task *dmt)
+{
+	dmt->no_open_count = 1;
+
+	return 1;
+}
+
 int dm_task_set_event_nr(struct dm_task *dmt, uint32_t event_nr)
 {
 	dmt->event_nr = event_nr;
@@ -1298,8 +1305,13 @@ int dm_task_run(struct dm_task *dmt)
 		dmi->flags |= DM_STATUS_TABLE_FLAG;
 
 	dmi->flags |= DM_EXISTS_FLAG;	/* FIXME */
-	log_debug("dm %s %s %s %s%.0llu %s", _cmd_data_v4[dmt->type].name,
+
+	if (dmt->no_open_count)
+		dmi->flags |= DM_SKIP_BDGET_FLAG;
+
+	log_debug("dm %s %s %s %s%c %.0llu %s", _cmd_data_v4[dmt->type].name,
 		  dmi->name, dmi->uuid, dmt->newname ? dmt->newname : "",
+		  dmt->no_open_count ? 'N' : 'O',
 		  dmt->sector, dmt->message ? dmt->message : "");
 	if (ioctl(_control_fd, command, dmi) < 0) {
 		if (errno == ENXIO && ((dmt->type == DM_DEVICE_INFO) ||

libdm/ioctl/libdm-targets.h

@@ -51,6 +51,7 @@ struct dm_task {
 	char *newname;
 	char *message;
 	uint64_t sector;
+	int no_open_count;
 
 	char *uuid;
 };

libdm/libdevmapper.h

@@ -134,6 +134,7 @@ int dm_task_set_major(struct dm_task *dmt, int major);
 int dm_task_set_event_nr(struct dm_task *dmt, uint32_t event_nr);
 int dm_task_set_message(struct dm_task *dmt, const char *message);
 int dm_task_set_sector(struct dm_task *dmt, uint64_t sector);
+int dm_task_no_open_count(struct dm_task *dmt);
 
 /*
  * Use these to prepare for a create or reload.

tools/dmsetup.c

@@ -58,6 +58,7 @@ enum {
 	MAJOR_ARG,
 	MINOR_ARG,
 	NOHEADINGS_ARG,
+	NOOPENCOUNT_ARG,
 	NOTABLE_ARG,
 	UUID_ARG,
 	VERBOSE_ARG,
@@ -291,6 +292,9 @@ static int _load(int argc, char **argv, void *data)
 	if (_switches[READ_ONLY] && !dm_task_set_ro(dmt))
 		goto out;
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	if (!dm_task_run(dmt))
 		goto out;
 
@@ -335,6 +339,9 @@ static int _create(int argc, char **argv, void *data)
 	if (_switches[MINOR_ARG] && !dm_task_set_minor(dmt, _values[MINOR_ARG]))
 		goto out;
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	if (!dm_task_run(dmt))
 		goto out;
 
@@ -364,6 +371,9 @@ static int _rename(int argc, char **argv, void *data)
 	if (!dm_task_set_newname(dmt, argv[argc - 1]))
 		goto out;
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	if (!dm_task_run(dmt))
 		goto out;
 
@@ -420,6 +430,9 @@ static int _message(int argc, char **argv, void *data)
 
 	free(str);
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	if (!dm_task_run(dmt))
 		goto out;
 
@@ -476,6 +489,9 @@ static int _simple(int task, const char *name, uint32_t event_nr, int display)
 	if (event_nr && !dm_task_set_event_nr(dmt, event_nr))
 		goto out;
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	r = dm_task_run(dmt);
 
 	if (r && display && _switches[VERBOSE_ARG])
@@ -599,6 +615,9 @@ static int _status(int argc, char **argv, void *data)
 	if (!_set_task_device(dmt, name, 0))
 		goto out;
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	if (!dm_task_run(dmt))
 		goto out;
 
@@ -674,6 +693,9 @@ static int _mknodes(int argc, char **argv, void *data)
 	if (!_set_task_device(dmt, argc > 1 ? argv[1] : NULL, 1))
 		goto out;
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	if (!dm_task_run(dmt))
 		goto out;
 
@@ -707,6 +729,9 @@ static int _info(int argc, char **argv, void *data)
 	if (!_set_task_device(dmt, name, 0))
 		goto out;
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	if (!dm_task_run(dmt))
 		goto out;
 
@@ -744,6 +769,9 @@ static int _deps(int argc, char **argv, void *data)
 	if (!_set_task_device(dmt, name, 0))
 		goto out;
 
+	if (_switches[NOOPENCOUNT_ARG] && !dm_task_no_open_count(dmt))
+		goto out;
+
 	if (!dm_task_run(dmt))
 		goto out;
 
@@ -841,7 +869,7 @@ static void _usage(FILE *out)
 
 	fprintf(out, "Usage:\n\n");
 	fprintf(out, "dmsetup [--version] [-v|--verbose [-v|--verbose ...]]\n"
-		"        [-r|--readonly]\n\n");
+		"        [-r|--readonly] [--noopencount]\n\n");
 	for (i = 0; _commands[i].name; i++)
 		fprintf(out, "\t%s %s\n", _commands[i].name, _commands[i].help);
 	fprintf(out, "\n<device> may be device name or -u <uuid> or "
@@ -873,6 +901,7 @@ static int _process_switches(int *argc, char ***argv)
 		{"major", 1, NULL, MAJOR_ARG},
 		{"minor", 1, NULL, MINOR_ARG},
 		{"noheadings", 0, NULL, NOHEADINGS_ARG},
+		{"noopencount", 0, NULL, NOOPENCOUNT_ARG},
 		{"notable", 0, NULL, NOTABLE_ARG},
 		{"uuid", 1, NULL, UUID_ARG},
 		{"verbose", 1, NULL, VERBOSE_ARG},
@@ -915,6 +944,8 @@ static int _process_switches(int *argc, char ***argv)
 		}
 		if ((ind == NOHEADINGS_ARG))
 			_switches[NOHEADINGS_ARG]++;
+		if ((ind == NOOPENCOUNT_ARG))
+			_switches[NOOPENCOUNT_ARG]++;
 		if ((ind == VERSION_ARG))
 			_switches[VERSION_ARG]++;
 	}