The patch titled Subject: mm: mempolicy: skip inaccessible VMAs when setting MPOL_MF_LAZY has been added to the -mm tree. Its filename is mm-mempolicy-skip-inaccessible-vmas-when-setting-mpol_mf_lazy.patch This patch should soon appear at http://ozlabs.org/~akpm/mmots/broken-out/mm-mempolicy-skip-inaccessible-vmas-when-setting-mpol_mf_lazy.patch and later at http://ozlabs.org/~akpm/mmotm/broken-out/mm-mempolicy-skip-inaccessible-vmas-when-setting-mpol_mf_lazy.patch Before you just go and hit "reply", please: a) Consider who else should be cc'ed b) Prefer to cc a suitable mailing list as well c) Ideally: find the original patch on the mailing list and do a reply-to-all to that, adding suitable additional cc's *** Remember to use Documentation/SubmitChecklist when testing your code *** The -mm tree is included into linux-next and is updated there every 3-4 working days ------------------------------------------------------ From: Mel Gorman <mgorman@xxxxxxx> Subject: mm: mempolicy: skip inaccessible VMAs when setting MPOL_MF_LAZY PROT_NUMA VMAs are skipped to avoid problems distinguishing between present, prot_none and special entries. MPOL_MF_LAZY is not visible from userspace since commit a720094ded8c ("mm: mempolicy: Hide MPOL_NOOP and MPOL_MF_LAZY from userspace for now") but it should still skip VMAs the same way task_numa_work does. Signed-off-by: Mel Gorman <mgorman@xxxxxxx> Acked-by: Rik van Riel <riel@xxxxxxxxxx> Acked-by: Hugh Dickins <hughd@xxxxxxxxxx> Acked-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- mm/mempolicy.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff -puN mm/mempolicy.c~mm-mempolicy-skip-inaccessible-vmas-when-setting-mpol_mf_lazy mm/mempolicy.c --- a/mm/mempolicy.c~mm-mempolicy-skip-inaccessible-vmas-when-setting-mpol_mf_lazy +++ a/mm/mempolicy.c @@ -681,7 +681,9 @@ queue_pages_range(struct mm_struct *mm, } if (flags & MPOL_MF_LAZY) { - change_prot_numa(vma, start, endvma); + /* Similar to task_numa_work, skip inaccessible VMAs */ + if (vma->vm_flags & (VM_READ | VM_EXEC | VM_WRITE)) + change_prot_numa(vma, start, endvma); goto next; } _ Patches currently in -mm which might be from mgorman@xxxxxxx are mm-migrate-close-race-between-migration-completion-and-mprotect.patch mm-numa-do-not-mark-ptes-pte_numa-when-splitting-huge-pages.patch mm-page_alloc-fix-zone-allocation-fairness-on-up.patch mm-remove-misleading-arch_uses_numa_prot_none.patch mm-page_alloc-determine-migratetype-only-once.patch mm-thp-dont-hold-mmap_sem-in-khugepaged-when-allocating-thp.patch mm-compaction-defer-each-zone-individually-instead-of-preferred-zone.patch mm-compaction-defer-each-zone-individually-instead-of-preferred-zone-fix.patch mm-compaction-do-not-count-compact_stall-if-all-zones-skipped-compaction.patch mm-compaction-do-not-recheck-suitable_migration_target-under-lock.patch mm-compaction-move-pageblock-checks-up-from-isolate_migratepages_range.patch mm-compaction-move-pageblock-checks-up-from-isolate_migratepages_range-fix.patch mm-compaction-reduce-zone-checking-frequency-in-the-migration-scanner.patch mm-compaction-khugepaged-should-not-give-up-due-to-need_resched.patch mm-compaction-khugepaged-should-not-give-up-due-to-need_resched-fix.patch mm-compaction-periodically-drop-lock-and-restore-irqs-in-scanners.patch mm-compaction-skip-rechecks-when-lock-was-already-held.patch mm-compaction-remember-position-within-pageblock-in-free-pages-scanner.patch mm-compaction-skip-buddy-pages-by-their-order-in-the-migrate-scanner.patch mm-rename-allocflags_to_migratetype-for-clarity.patch mm-compaction-pass-gfp-mask-to-compact_control.patch introduce-dump_vma.patch introduce-dump_vma-fix.patch introduce-vm_bug_on_vma.patch convert-a-few-vm_bug_on-callers-to-vm_bug_on_vma.patch mm-page_alloc-avoid-wakeup-kswapd-on-the-unintended-node.patch mm-clean-up-zone-flags.patch mm-compaction-fix-warning-of-flags-may-be-used-uninitialized.patch mm-page_alloc-make-paranoid-check-in-move_freepages-a-vm_bug_on.patch mm-page_alloc-default-node-ordering-on-64-bit-numa-zone-ordering-on-32-bit-v2.patch mm-mempolicy-skip-inaccessible-vmas-when-setting-mpol_mf_lazy.patch mm-introduce-do_shared_fault-and-drop-do_fault-fix-fix.patch do_shared_fault-check-that-mmap_sem-is-held.patch x86-optimize-resource-lookups-for-ioremap.patch x86-optimize-resource-lookups-for-ioremap-fix.patch x86-use-optimized-ioresource-lookup-in-ioremap-function.patch linux-next.patch -- To unsubscribe from this list: send the line "unsubscribe mm-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html