Messages in this thread | | | Date | Mon, 9 Apr 2018 17:47:53 -0700 | From | Andrew Morton <> | Subject | Re: [PATCH -mm] mm, pagemap: Fix swap offset value for PMD migration entry |
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On Sun, 8 Apr 2018 11:37:37 +0800 "Huang, Ying" <ying.huang@intel.com> wrote:
> From: Huang Ying <ying.huang@intel.com> > > 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?
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