On 6/21/24 07:25, Peter Xu wrote: > An entry should be reported as PUD leaf even if it's PROT_NONE, in which > case PRESENT bit isn't there. I hit bad pud without this when testing dax > 1G on zapping a PROT_NONE PUD. Yeah, looks like pmd_leaf() got fixed up because of its involvement in THP, but PUDs got missed. This patch also realigns pmd_leaf() and pud_leaf() behavior, which is important. Acked-by: Dave Hansen <dave.hansen@xxxxxxxxxxxxxxx>
