> On Aug 23, 2019, at 10:48 AM, Guilherme G. Piccoli <gpiccoli@xxxxxxxxxxxxx> wrote:
>
> On 22/08/2019 18:55, Song Liu wrote:
>> [...]
>>> + if (unlikely(!(tmp_dev->rdev->bdev->bd_disk->flags & GENHD_FL_UP))) {
>>> + if (!test_bit(MD_BROKEN, &mddev->flags))
>>> + pr_warn("md: %s: linear array has a missing/failed member\n",
>>> + mdname(mddev));
>>> + set_bit(MD_BROKEN, &mddev->flags);
>>> + bio_io_error(bio);
>>> + return true;
>>> + }
>>> +
>>
>> Maybe we can somehow put this block in a helper and use it in both raid0
>> and linear code?
>>
>> Otherwise, looks good to me.
>>
>> Thanks,
>> Song
>>
>
> OK, so something as a function with a prototype like
> "void md_is_broken(struct md_rdev *rd, const char *md_type)"
> is good for you?
> Then we can use that as the check if a member failed and in positive
> case, we can print the message (if not printed before) and return to the
> raid0/linear driver in order it fails the bio and returns.
> I'd prefer keeping the bio out of the helper, agreed?
>
I guess md_is_broken() should return bool? Otherwise, looks good to me.
Thanks,
Song
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