On Thu, Sep 17, 2015 at 4:03 PM, Dave Chinner <david@xxxxxxxxxxxxx> wrote:
>
> Ok, I'm happy to report there is actually nothing wrong with the
> plugging code that is your tree. I finally tracked the problem I
> was seeing down to a misbehaving RAID controller.[*]
Hey, that's great.
Just out of interest, try the patch that Chris just sent that turns
the unplugging synchronous for the special "cond_resched()" case.
If that helps your case too, let's just do it, even while we wonder
why kblockd_workqueue messes up so noticeable.
Because regardless of the kblockd_workqueue questions, I think it's
nicer to avoid the cond_resched_lock(), and do the rescheduling while
we're not holding any locks.
Linus
--
To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
