Re: [PATCH V2 5/7] bcache: update cached_dev_init() with helper

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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;
>>
>>
>





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