On Sat, Nov 12, 2022 at 12:15 AM Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> wrote: > > > The patch titled > Subject: Revert "kmsan: unpoison @tlb in arch_tlb_gather_mmu()" > has been added to the -mm mm-hotfixes-unstable branch. Its filename is > revert-kmsan-unpoison-tlb-in-arch_tlb_gather_mmu.patch > > This patch will shortly appear at > https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/revert-kmsan-unpoison-tlb-in-arch_tlb_gather_mmu.patch > > This patch will later appear in the mm-hotfixes-unstable branch at > git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm > > Before you just go and hit "reply", please: > a) Consider who else should be cc'ed > b) Prefer to cc a suitable mailing list as well > c) Ideally: find the original patch on the mailing list and do a > reply-to-all to that, adding suitable additional cc's > > *** Remember to use Documentation/process/submit-checklist.rst when testing your code *** > > The -mm tree is included into linux-next via the mm-everything > branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm > and is updated there every 2-3 working days > > ------------------------------------------------------ > From: Alexander Potapenko <glider@xxxxxxxxxx> > Subject: Revert "kmsan: unpoison @tlb in arch_tlb_gather_mmu()" > Date: Thu, 10 Nov 2022 12:35:41 +0100 > > This reverts commit ac801e7e252c5588325e3c983c7d4167fc68c024. > > The patch in question was picked to -mm from the KMSAN v6 patch series > (https://lore.kernel.org/linux-mm/20220905122452.2258262-1-glider@xxxxxxxxxx/) > and sneaked into mainline despite its removal from the v7 series > (https://lore.kernel.org/linux-mm/20220915150417.722975-1-glider@xxxxxxxxxx/) > > Currently KMSAN does not warn about origin chains hitting the maximum > depth, so keeping @tlb poisoned won't result in any inconveniences. > @Linus as a heads-up, this revert is still missing in 6.1 It's not strictly required for the release, but, as noted on the other thread, the original patch is not needed anymore, so reverting it will make mmu_gather less ugly.
