[RFC PATCH v1 07/17] block: support non-blocking bio allocation with a bdev

[yu kuai]

Hi,

在 2026/7/9 14:15, Christoph Hellwig 写道:
> Maybe we should just move the blkcg allocation back to bio_submit where
> we know we can sleep?

This sounds good, I already switch blkg allocation just before submit_bio()
in some cases in this set.

Just one question, for nowait case, is it correct that we still can't sleep
during submit_bio()? If so, I still need to add nowait special case during
blkg creation. Or I can just return -AGAIN if blkg lookup failed, this is
much simplier.

>
-- 
Thanks,
Kuai