[PATCH V3 5/9] bcache: update cached_dev_init() with helper

Chaitanya Kulkarni
2019-07-02T17:42:31Z

In the bcache when initializing the cached device we don't actually
use any sort of locking when reading the number of sectors from the
part. This patch updates the cached_dev_init() with newly introduced
helper function to read the nr_sects from block device's hd_parts with
the help of part_nr_sects_read().

Acked-by: Coly Li <colyli@suse.de>
Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@wdc.com>
---
drivers/md/bcache/super.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/md/bcache/super.c b/drivers/md/bcache/super.c
index 1b63ac876169..6a29ba89dae1 100644
--- a/drivers/md/bcache/super.c
+++ b/drivers/md/bcache/super.c
@@ -1263,7 +1263,7 @@ static int cached_dev_init(struct cached_dev *dc, unsigned int block_size)
q->limits.raid_partial_stripes_expensive;

ret = bcache_device_init(&dc->disk, block_size,
- dc->bdev->bd_part->nr_sects - dc->sb.data_offset);
+ bdev_nr_sects(dc->bdev) - dc->sb.data_offset);
if (ret)
return ret;