On 9/23/26 01:00, Andrew Morton wrote: > On Tue, 22 Sep 2026 16:35:31 +0100 "Lorenzo Stoakes (ARM)" <[email protected]> > wrote: > >> The majority of architectures in the kernel defer page table freeing until >> an RCU grace period has elapsed, this series converts all remaining >> architectures to do so too and eliminates CONFIG_MMU_GATHER_RCU_TABLE_FREE >> altogether. >> >> This is important because it enables safe lockless page table walking under >> RCU alone. > > Do we have reason to believe that anyone is seeing any effects from > their arch's failure to rcu-free the page tables? > > This sounds like a rather long-standing wart, yes? > > The patchset is thinly reviewed and mm.git is bursting at the seams > again. I'll play wait-and-see on this series. Do we want to nudge arch maintainers to review?
-- Cheers, David
