On Sun, Mar 12, 2023 at 10:09:45AM +0200, Yair Podemsky wrote: > Currently the tlb_remove_table_smp_sync IPI is sent to all CPUs > indiscriminately, this causes unnecessary work and delays notable in > real-time use-cases and isolated cpus, this patch will limit this IPI to > only be sent to cpus referencing the effected mm and are currently in > kernel space. Did you validate that all architectures for which this is relevant actually set bits in mm_cpumask() ?
