Re: [PATCH RFC v4 1/3] block: add BIO_COMPLETE_IN_TASK for task-context completion

[Christoph Hellwig]

On Tue, Apr 14, 2026 at 04:29:29PM -0400, Tal Zussman wrote:
> No problem, thanks!
> 
> >> (Although Christoph seems to have proposed moving away from llist again)
> > 
> > I think that's a good idea, not a fan of using llist for this, in case
> > that wasn't clear. These are per-cpu lists anyway, and having a constant
> > overhead is better than needing to reverse an llist. IMHO.
> 
> Will change it back for the next version.

FYI, the prime reason I switched away form the llist is to make sure
we can atomically check the list emptyness vs the wakeup decision
in the kthread version.  But if Jens prefers it for other versions as
well, that's fine.