From 6d56416665863dc2b4fb107dbdc779e4791bdf9e Mon Sep 17 00:00:00 2001
From: "kay.sievers@vrfy.org" <kay.sievers@vrfy.org>
Date: Wed, 9 Feb 2005 08:43:18 +0100
Subject: [PATCH] [PATCH] create /block/*/range count of partitons for
 all_partitions

---
 namedev.h       |  2 +-
 namedev_parse.c | 13 ++++++++++++-
 udev.h          |  2 ++
 udev_add.c      | 18 +++++++++++++++---
 udev_remove.c   |  2 +-
 5 files changed, 31 insertions(+), 6 deletions(-)

diff --git a/namedev.h b/namedev.h
index 8a3569ec..43381bfb 100644
--- a/namedev.h
+++ b/namedev.h
@@ -53,7 +53,6 @@ struct sysfs_class_device;
 
 #define ATTR_PARTITIONS		"all_partitions"
 #define ATTR_IGNORE_REMOVE	"ignore_remove"
-#define PARTITIONS_COUNT	15
 
 #define MAX_SYSFS_PAIRS		5
 
@@ -91,6 +90,7 @@ extern struct list_head config_device_list;
 
 extern int namedev_init(void);
 extern int namedev_name_device(struct udevice *udev, struct sysfs_class_device *class_dev);
+extern void namedev_close(void);
 
 extern void dump_config_dev(struct config_device *dev);
 extern void dump_config_dev_list(void);
diff --git a/namedev_parse.c b/namedev_parse.c
index 5bd59d83..7b5b9630 100644
--- a/namedev_parse.c
+++ b/namedev_parse.c
@@ -250,7 +250,7 @@ static int namedev_parse(const char *filename, void *data)
 				if (attr != NULL) {
 					if (strstr(attr, ATTR_PARTITIONS) != NULL) {
 						dbg_parse("creation of partition nodes requested");
-						dev.partitions = PARTITIONS_COUNT;
+						dev.partitions = DEFAULT_PARTITIONS_COUNT;
 					}
 					if (strstr(attr, ATTR_IGNORE_REMOVE) != NULL) {
 						dbg_parse("remove event should be ignored");
@@ -338,3 +338,14 @@ int namedev_init(void)
 
 	return retval;
 }
+
+void namedev_close(void)
+{
+	struct config_device *dev;
+
+	list_for_each_entry(dev, &config_device_list, node) {
+		list_del(&dev->node);
+		free(dev);
+	}
+}
+
diff --git a/udev.h b/udev.h
index 5beec645..c2f9859c 100644
--- a/udev.h
+++ b/udev.h
@@ -46,6 +46,8 @@
 #define HOTPLUGD_DIR			"/etc/hotplug.d"
 #define HOTPLUG_SUFFIX			".hotplug"
 
+#define DEFAULT_PARTITIONS_COUNT	15
+
 struct udevice {
 	char devpath[DEVPATH_SIZE];
 	char subsystem[SUBSYSTEM_SIZE];
diff --git a/udev_add.c b/udev_add.c
index a495902a..c566571c 100644
--- a/udev_add.c
+++ b/udev_add.c
@@ -117,16 +117,16 @@ exit:
 	return retval;
 }
 
-static int create_node(struct udevice *udev)
+static int create_node(struct udevice *udev, struct sysfs_class_device *class_dev)
 {
 	char filename[NAME_SIZE];
 	char partitionname[NAME_SIZE];
 	uid_t uid = 0;
 	gid_t gid = 0;
-	int i;
 	int tail;
 	char *pos;
 	int len;
+		int i;
 
 	snprintf(filename, NAME_SIZE, "%s/%s", udev_root, udev->name);
 	filename[NAME_SIZE-1] = '\0';
@@ -154,6 +154,7 @@ static int create_node(struct udevice *udev)
 	if (udev->owner[0] != '\0') {
 		char *endptr;
 		unsigned long id = strtoul(udev->owner, &endptr, 10);
+
 		if (endptr[0] == '\0')
 			uid = (uid_t) id;
 		else {
@@ -170,6 +171,7 @@ static int create_node(struct udevice *udev)
 	if (udev->group[0] != '\0') {
 		char *endptr;
 		unsigned long id = strtoul(udev->group, &endptr, 10);
+
 		if (endptr[0] == '\0')
 			gid = (gid_t) id;
 		else {
@@ -193,6 +195,16 @@ static int create_node(struct udevice *udev)
 
 	/* create all_partitions if requested */
 	if (udev->partitions > 0) {
+		struct sysfs_attribute *attr;
+		int range;
+
+		/* take the maximum registered minor range */
+		attr = sysfs_get_classdev_attr(class_dev, "range");
+		if (attr) {
+			range = atoi(attr->value);
+			if (range > 1)
+				udev->partitions = range-1;
+		}
 		info("creating device partition nodes '%s[1-%i]'", filename, udev->partitions);
 		if (!udev->test_run) {
 			for (i = 1; i <= udev->partitions; i++) {
@@ -298,7 +310,7 @@ int udev_add_device(struct udevice *udev, struct sysfs_class_device *class_dev)
 	selinux_init();
 
 	if (udev->type == 'b' || udev->type == 'c') {
-		retval = create_node(udev);
+		retval = create_node(udev, class_dev);
 		if (retval != 0)
 			goto exit;
 
diff --git a/udev_remove.c b/udev_remove.c
index e1af3dbe..172ec126 100644
--- a/udev_remove.c
+++ b/udev_remove.c
@@ -89,7 +89,7 @@ static int delete_node(struct udevice *udev)
 	num = udev->partitions;
 	if (num > 0) {
 		info("removing all_partitions '%s[1-%i]'", filename, num);
-		if (num > PARTITIONS_COUNT) {
+		if (num > 255) {
 			info("garbage from udev database, skip all_partitions removal");
 			return -1;
 		}
-- 
2.39.5