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-rw-r--r--block/blk-core.c5
-rw-r--r--block/genhd.c17
2 files changed, 20 insertions, 2 deletions
diff --git a/block/blk-core.c b/block/blk-core.c
index 32a1c123dfb3..677f57445fd9 100644
--- a/block/blk-core.c
+++ b/block/blk-core.c
@@ -1612,11 +1612,12 @@ void submit_bio(int rw, struct bio *bio)
if (unlikely(block_dump)) {
char b[BDEVNAME_SIZE];
- printk(KERN_DEBUG "%s(%d): %s block %Lu on %s\n",
+ printk(KERN_DEBUG "%s(%d): %s block %Lu on %s (%u sectors)\n",
current->comm, task_pid_nr(current),
(rw & WRITE) ? "WRITE" : "READ",
(unsigned long long)bio->bi_sector,
- bdevname(bio->bi_bdev, b));
+ bdevname(bio->bi_bdev, b),
+ count);
}
}
diff --git a/block/genhd.c b/block/genhd.c
index 315afd2f2088..c26acf69af5a 100644
--- a/block/genhd.c
+++ b/block/genhd.c
@@ -1008,6 +1008,22 @@ static void disk_release(struct device *dev)
free_part_stats(&disk->part0);
kfree(disk);
}
+
+static int disk_uevent(struct device *dev, struct kobj_uevent_env *env)
+{
+ struct gendisk *disk = dev_to_disk(dev);
+ struct disk_part_iter piter;
+ struct hd_struct *part;
+ int cnt = 0;
+
+ disk_part_iter_init(&piter, disk, 0);
+ while((part = disk_part_iter_next(&piter)))
+ cnt++;
+ disk_part_iter_exit(&piter);
+ add_uevent_var(env, "NPARTS=%u", cnt);
+ return 0;
+}
+
struct class block_class = {
.name = "block",
};
@@ -1026,6 +1042,7 @@ static struct device_type disk_type = {
.groups = disk_attr_groups,
.release = disk_release,
.devnode = block_devnode,
+ .uevent = disk_uevent,
};
#ifdef CONFIG_PROC_FS