block: use the %pg format specifier in printk_all_partitions

Simplify printing the partition name by using the %pg format specifier
that is equivalent to a bdevname call.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Martin K. Petersen <martin.petersen@oracle.com>
Link: https://lore.kernel.org/r/20210727062518.122108-3-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/block/genhd.c b/block/genhd.c
index cf705cf..770f21b 100644 (file)
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -678,7 +678,6 @@ void __init printk_all_partitions(void)
        while ((dev = class_dev_iter_next(&iter))) {
                struct gendisk *disk = dev_to_disk(dev);
                struct block_device *part;
-               char name_buf[BDEVNAME_SIZE];
                char devt_buf[BDEVT_SIZE];
                unsigned long idx;
 
@@ -698,11 +697,10 @@ void __init printk_all_partitions(void)
                xa_for_each(&disk->part_tbl, idx, part) {
                        if (!bdev_nr_sectors(part))
                                continue;
-                       printk("%s%s %10llu %s %s",
+                       printk("%s%s %10llu %pg %s",
                               bdev_is_partition(part) ? "  " : "",
                               bdevt_str(part->bd_dev, devt_buf),
-                              bdev_nr_sectors(part) >> 1,
-                              disk_name(disk, part->bd_partno, name_buf),
+                              bdev_nr_sectors(part) >> 1, part,
                               part->bd_meta_info ?
                                        part->bd_meta_info->uuid : "");
                        if (bdev_is_partition(part))