On 06/16/2019 11:54 PM, Coly Li wrote: > On 2019/6/17 9:28 上午, Chaitanya Kulkarni wrote: >> In the bcache when initializing the 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(). >> >> Signed-off-by: Chaitanya Kulkarni <chaitanya.kulkarni@xxxxxxx> > > Acked-by: Coly Li <colyli@xxxxxxx> Thanks Coly. > > Thanks. > > Coly Li > >> --- >> 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; >> >> >
