> On Mar 8, 2022, at 6:57 PM, Bibo Mao <maobibo@xxxxxxxxxxx> wrote: > > numa worker will periodically change vma prot with PROT_NONE, by > default it will scan 256M vma memory size with pmd stepping size. > If there are fewer pages changed with PROT_NONE, tlb flush is called > with pmd size. This patch will calculate flush range for those > pages with pte prot changed, it will reduce size for tlb flush. > > Signed-off-by: Bibo Mao <maobibo@xxxxxxxxxxx> Hi Bibo, I finally managed to make v3 of a patchiest, which I think does something similar to what you are looking for (without introducing yet another TLB batching mechanism). Have a look at [1] and let me know if that would satisfy you. [1] https://lore.kernel.org/linux-mm/20220309041043.302261-4-namit@xxxxxxxxxx/T/#u
