RE: [PATCH] mm: Remove double faults once write a device pfn

[AMD Official Use Only - General] > The vmf_insert_pfn_prot could cause unnecessary double faults > on a device pfn. Because currently the vmf_insert_pfn_prot does > not make the pfn writable so the pte entry is normally > read-only or dirty catching. > >>>

RE: [PATCH] mm: Remove double faults once write a device pfn

[AMD Official Use Only - General] > > The vmf_insert_pfn_prot could cause unnecessary double faults on a > > device pfn. Because currently the vmf_insert_pfn_prot does not > > make the pfn writable so the pte entry is normally read-only or > > dirty catching. > What? How do yo

RE: [PATCH] mm: Remove double faults once write a device pfn

[AMD Official Use Only - General] > >>> The vmf_insert_pfn_prot could cause unnecessary double faults on a > >>> device pfn. Because currently the vmf_insert_pfn_prot does not make > >>> the pfn writable so the pte entry is normally read-only or dirty > >>> catching. > >> What? How do you got to t

RE: [PATCH] mm: Remove double faults once write a device pfn

[AMD Official Use Only - General] > > The vmf_insert_pfn_prot could cause unnecessary double faults on a > > device pfn. Because currently the vmf_insert_pfn_prot does not make > > the pfn writable so the pte entry is normally read-only or dirty > > catching. > > What? How do you got to this concl