[5/8] bcache: update cached_dev_init() with helper
diff mbox series

Message ID 20190613145955.4813-6-chaitanya.kulkarni@wdc.com
State New
Headers show
  • block: use right accessor to read nr_sects
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Commit Message

Chaitanya Kulkarni June 13, 2019, 2:59 p.m. UTC
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 if part_nr_sects_read() protected by appropriate locking.

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

diff mbox series

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)
 	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;