Re: [PATCH v4 00/12] mm: make userland page table freeing RCU-safe
From: "David Hildenbrand (Arm)" <david@kernel.org>
Date: 2026-09-23 09:15:51
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On 9/23/26 11:04, Lorenzo Stoakes (ARM) wrote:
On Wed, Sep 23, 2026 at 10:45:33AM +0200, David Hildenbrand (Arm) wrote:quoted
On 9/23/26 01:00, Andrew Morton wrote:quoted
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?(Just to note that I replied separately, 'thinly reviewed' is incorrect, it's been in -next for weeks and the whole thing was reviewed by Kiryl.)
Ack.
The only places where that would be useful is m68k motorola, sparc32. But in any case it has been heavily tested including on every single arch listed with stress testing performed (I think I cover that in the cover letter). The changes are not controversial so I don't think that's a blocker, but it'd be nice?
I doubt we'll ever get sparc32 reviews :) I'd definitely appreciate some review on the arch bits from arch maintainers, but if they don't reply within the next weeks I wouldn't wait on that. -- Cheers, David