On Fri 27-04-18 09:37:20, joro@xxxxxxxxxx wrote: [...] > So until we make the generic ioremap code in lib/ioremap.c smarter about > unmapping/remapping ranges the best solution is making my fix work again > by reverting your patch. Could you reuse the same mmu_gather mechanism as we use in the zap_*_range? -- Michal Hocko SUSE Labs