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SubjectRe: [PATCH v2 0/4] more mm switching vs TLB shootdown and lazy tlb fixes
On Mon, 14 Sep 2020 14:52:15 +1000, Nicholas Piggin wrote:
> This is an attempt to fix a few different related issues around
> switching mm, TLB flushing, and lazy tlb mm handling.
> This will require all architectures to eventually move to disabling
> irqs over activate_mm, but it's possible we could add another arch
> call after irqs are re-enabled for those few which can't do their
> entire activation with irqs disabled.
> [...]

Applied to powerpc/next.

[1/4] mm: fix exec activate_mm vs TLB shootdown and lazy tlb switching race
[2/4] powerpc: select ARCH_WANT_IRQS_OFF_ACTIVATE_MM
[3/4] sparc64: remove mm_cpumask clearing to fix kthread_use_mm race
[4/4] powerpc/64s/radix: Fix mm_cpumask trimming race vs kthread_use_mm


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