[PATCH 09/10] mm: numa: Add paranoid check around pte_protnone_numa

2015-01-05 Thread Mel Gorman
pte_protnone_numa is only safe to use after VMA checks for PROT_NONE are complete. Treating a real PROT_NONE PTE as a NUMA hinting fault is going to result in strangeness so add a check for it. BUG_ON looks like overkill but if this is hit then it's a serious bug that could result in corruption so

[PATCH 09/10] mm: numa: Add paranoid check around pte_protnone_numa

2014-12-04 Thread Mel Gorman
pte_protnone_numa is only safe to use after VMA checks for PROT_NONE are complete. Treating a real PROT_NONE PTE as a NUMA hinting fault is going to result in strangeness so add a check for it. BUG_ON looks like overkill but if this is hit then it's a serious bug that could result in corruption so

[PATCH 09/10] mm: numa: Add paranoid check around pte_protnone_numa

2014-11-21 Thread Mel Gorman
pte_protnone_numa is only safe to use after VMA checks for PROT_NONE are complete. Treating a real PROT_NONE PTE as a NUMA hinting fault is going to result in strangeness so add a check for it. BUG_ON looks like overkill but if this is hit then it's a serious bug that could result in corruption so

[PATCH 09/10] mm: numa: Add paranoid check around pte_protnone_numa

2014-11-20 Thread Mel Gorman
pte_protnone_numa is only safe to use after VMA checks for PROT_NONE are complete. Treating a real PROT_NONE PTE as a NUMA hinting fault is going to result in strangeness so add a check for it. BUG_ON looks like overkill but if this is hit then it's a serious bug that could result in corruption so