Re: [PATCH] mm/gup: fix always draining LRU caches in collect_longterm_unpinnable_folios()
"David Hildenbrand (Arm)" <[email protected]>
| Newsgroups | gmane.linux.kernel.stable,gmane.linux.kernel.mm,gmane.linux.kernel |
|---|---|
| Message-ID | <[email protected]> |
On 8/1/26 21:20, Andrew Morton wrote: > On Sat, 1 Aug 2026 11:49:39 -0700 (PDT) Hugh Dickins <[email protected]> wrote: > >>> Found by code inspection. If someone has a testcase that can easily >>> trigger this and result in migration problems, please test! But this >>> change seems to be "obvious the right thing to do". >> >> Sorry, I don't (as perhaps is too obvious). And I'm a wee bit afraid >> that some of the problems which those changes happened to succeed in >> fixing, might now reappear once the drains are finely targeted. >> >> Am I arguing for a delay before advancing to stable? Perhaps, but >> I think not: it's probably best to get that working as intended, >> then deal with any fallout if it arises: just be on guard. > > This patch is in mm-new, so it's still some months away from -stable > eligibility. I hope you meant weeks :) Can we get that into 7.3-rc1, though? There is quite the overlap with guest_memfd work, and I'll send another patch that depends on this. -- Cheers, David