Re: [PATCH bugfix] proc/pagemap: correctly report non-present ptesand holes between vmas

[Pavel Emelyanov]

On 04/28/2012 08:22 PM, Konstantin Khlebnikov wrote:
> This patch resets current pagemap-entry if current pte isn't present,
> or if current vma is over. Otherwise pagemap reports last entry again and again.
> 
> non-present pte reporting was broken in commit v3.3-3738-g092b50b
> ("pagemap: introduce data structure for pagemap entry")
> 
> reporting for holes was broken in commit v3.3-3734-g5aaabe8
> ("pagemap: avoid splitting thp when reading /proc/pid/pagemap")
> 
> Signed-off-by: Konstantin Khlebnikov <khlebnikov@xxxxxxxxxx>
> Reported-by: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>
> Cc: Naoya Horiguchi <n-horiguchi@xxxxxxxxxxxxx>
> Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>
> Cc: Andi Kleen <ak@xxxxxxxxxxxxxxx>

Acked-by: Pavel Emelyanov <xemul@xxxxxxxxxxxxx>

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