3.8.13.13 -stable review patch. If anyone has any objections, please let me know.
------------------ From: Mel Gorman <mgor...@suse.de> commit 0255d491848032f6c601b6410c3b8ebded3a37b1 upstream. A THP PMD update is accounted for as 512 pages updated in vmstat. This is large difference when estimating the cost of automatic NUMA balancing and can be misleading when comparing results that had collapsed versus split THP. This patch addresses the accounting issue. Signed-off-by: Mel Gorman <mgor...@suse.de> Reviewed-by: Rik van Riel <r...@redhat.com> Cc: Andrea Arcangeli <aarca...@redhat.com> Cc: Johannes Weiner <han...@cmpxchg.org> Cc: Srikar Dronamraju <sri...@linux.vnet.ibm.com> Signed-off-by: Peter Zijlstra <pet...@infradead.org> Link: http://lkml.kernel.org/r/1381141781-10992-10-git-send-email-mgor...@suse.de Signed-off-by: Ingo Molnar <mi...@kernel.org> Signed-off-by: Kamal Mostafa <ka...@canonical.com> --- mm/mprotect.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/mm/mprotect.c b/mm/mprotect.c index 94722a4..2bbb648 100644 --- a/mm/mprotect.c +++ b/mm/mprotect.c @@ -145,7 +145,7 @@ static inline unsigned long change_pmd_range(struct vm_area_struct *vma, split_huge_page_pmd(vma, addr, pmd); else if (change_huge_pmd(vma, pmd, addr, newprot, prot_numa)) { - pages += HPAGE_PMD_NR; + pages++; continue; } /* fall through */ -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
