Re: [RFC][PATCH] sched: Use lightweight hazard pointers to grab lazy mms

On Thu, Jun 17, 2021 at 07:10:41AM -0700, Andy Lutomirski wrote:

On Thu, Jun 17, 2021, at 2:08 AM, Peter Zijlstra wrote:

quoted

+extern void mm_unlazy_mm_count(struct mm_struct *mm);

You didn't like mm_many_words_in_the_name_of_the_function()? :)

:-)

quoted

-	if (mm) {
-		membarrier_mm_sync_core_before_usermode(mm);
-		mmdrop(mm);
-	}

What happened here?

I forced your patch ontop of tip/master without bothering about the
membarrier cleanups and figured I could live without that call for a
little while.

But yes, that needs cleaning up.