[dm-devel] [PATCH] md/raid0: Fail BIOs if their underlying block device is gone

[Guilherme G. Piccoli]

On 29/07/2019 21:08, NeilBrown wrote:
>[...]
>> +	if (unlikely(test_bit(MD_BROKEN, &mddev->flags))) {
>> +		bio_io_error(bio);
>> +		return BLK_QC_T_NONE;
>> +	}
> 
> I think this should only fail WRITE requests, not READ requests.
> 
> Otherwise the patch is probably reasonable.
> 
> NeilBrown

Thanks for the feedback Neil! I thought about it; it seemed to me better
to deny/fail the reads instead of returning "wrong" reads, since a file
read in a raid0 will be incomplete if one member is missing.
But it's fine for me to change that in the next iteration of this patch.

Cheers,


Guilherme