On Tue, 2012-05-15 at 19:15 +1000, Nick Piggin wrote: > So this should go to linux-arch... > > On 15 May 2012 18:55, Alex Shi <alex.shi@xxxxxxxxx> wrote: > > Not every flush_tlb_mm execution moment is really need to evacuate all > > TLB entries, like in munmap, just few 'invlpg' is better for whole > > process performance, since it leaves most of TLB entries for later > > accessing. > > > > This patch is changing flush_tlb_mm(mm) to flush_tlb_mm(mm, start, end) > > in cases. > > What happened with Peter's comment about using flush_tlb_range for this? > > flush_tlb_mm() API should just stay unchanged AFAIKS. > > Then you need to work out the best way to give range info to the tlb/mmu gather > API. Possibly passing in the rage for that guy is OK, which x86 can > then implement > as flush range. Right, most archs that have tlb_flush_range() do range tracking in mmu_gather. Our TLB ops fully support that, there's absolutely no need to go change the interface for thos. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
