From: Kay Sievers <kay.sievers@vrfy.org>
Subject: block: struct device - replace bus_id with dev_name(), dev_set_name()

Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
---
 block/bsg.c           |    6 +++---
 block/genhd.c         |    2 +-
 fs/partitions/check.c |   11 +++--------
 3 files changed, 7 insertions(+), 12 deletions(-)

--- a/block/bsg.c
+++ b/block/bsg.c
@@ -42,7 +42,7 @@ struct bsg_device {
 	int done_cmds;
 	wait_queue_head_t wq_done;
 	wait_queue_head_t wq_free;
-	char name[BUS_ID_SIZE];
+	char name[20];
 	int max_queue;
 	unsigned long flags;
 };
@@ -781,7 +781,7 @@ static struct bsg_device *bsg_add_device
 	mutex_lock(&bsg_mutex);
 	hlist_add_head(&bd->dev_list, bsg_dev_idx_hash(iminor(inode)));
 
-	strncpy(bd->name, rq->bsg_dev.class_dev->bus_id, sizeof(bd->name) - 1);
+	strncpy(bd->name, dev_name(rq->bsg_dev.class_dev), sizeof(bd->name) - 1);
 	dprintk("bound to <%s>, max queue %d\n",
 		format_dev_t(buf, inode->i_rdev), bd->max_queue);
 
@@ -992,7 +992,7 @@ int bsg_register_queue(struct request_qu
 	if (name)
 		devname = name;
 	else
-		devname = parent->bus_id;
+		devname = dev_name(parent);
 
 	/*
 	 * we need a proper transport to send commands, not a stacked device
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1084,7 +1084,7 @@ dev_t blk_lookup_devt(const char *name, 
 		struct gendisk *disk = dev_to_disk(dev);
 		struct hd_struct *part;
 
-		if (strcmp(dev->bus_id, name))
+		if (strcmp(dev_name(dev), name))
 			continue;
 
 		part = disk_get_part(disk, partno);
--- a/fs/partitions/check.c
+++ b/fs/partitions/check.c
@@ -384,9 +384,9 @@ struct hd_struct *add_partition(struct g
 
 	dname = dev_name(ddev);
 	if (isdigit(dname[strlen(dname) - 1]))
-		snprintf(pdev->bus_id, BUS_ID_SIZE, "%sp%d", dname, partno);
+		dev_set_name(pdev, "%sp%d", dname, partno);
 	else
-		snprintf(pdev->bus_id, BUS_ID_SIZE, "%s%d", dname, partno);
+		dev_set_name(pdev, "%s%d", dname, partno);
 
 	device_initialize(pdev);
 	pdev->class = &block_class;
@@ -447,16 +447,11 @@ void register_disk(struct gendisk *disk)
 	struct block_device *bdev;
 	struct disk_part_iter piter;
 	struct hd_struct *part;
-	char *s;
 	int err;
 
 	ddev->parent = disk->driverfs_dev;
 
-	strlcpy(ddev->bus_id, disk->disk_name, BUS_ID_SIZE);
-	/* ewww... some of these buggers have / in the name... */
-	s = strchr(ddev->bus_id, '/');
-	if (s)
-		*s = '!';
+	dev_set_name(ddev, disk->disk_name);
 
 	/* delay uevents, until we scanned partition table */
 	ddev->uevent_suppress = 1;