On Sun, 8 Apr 2018 11:37:37 +0800 "Huang, Ying" <ying.huang@xxxxxxxxx> wrote: > From: Huang Ying <ying.huang@xxxxxxxxx> > > The swap offset reported by /proc/<pid>/pagemap may be not correct for > PMD migration entry. If addr passed into pagemap_range() isn't pagemap_pmd_range(), yes? > aligned with PMD start address, How can this situation come about? > the swap offset reported doesn't > reflect this. And in the loop to report information of each sub-page, > the swap offset isn't increased accordingly as that for PFN. > > BTW: migration swap entries have PFN information, do we need to > restrict whether to show them? For what reason? Address obfuscation?
