Re: [PATCH] lib/sort.c: Add _nonatomic() variants with cond_resched()

[Kent Overstreet]

On Thu, Mar 27, 2025 at 11:09:23AM -0700, Andrew Morton wrote:
> On Wed, 26 Mar 2025 11:26:06 -0400 Kent Overstreet <kent.overstreet@xxxxxxxxx> wrote:
> 
> > bcachefs calls sort() during recovery to sort all keys it found in the
> > journal, and this may be very large - gigabytes on large machines.
> > 
> > This has been causing "task blocked" warnings, so needs a
> > cond_resched().
> 
> I assume this has been happening for a while, so a cc:stable is appropriate?

Well, right now I'm only doing backports for the most critical stuff,
and this doesn't meet that bar. I'm planning on doing normal backports
after I take the experimental label off, in at most another year.

And I've told the stable team I don't want them touching fs/bcachefs/, I
want to be doing those backports and running them through my normal QA
process. We could for this, but perhaps better not to let the process
get confused :)