On Sun, May 12, 2013 at 9:23 AM, Kirill A. Shutemov <[email protected]> wrote: > @@ -3301,12 +3335,23 @@ static int __do_fault(struct mm_struct *mm, struct > vm_area_struct *vma, > { > pte_t *page_table; > spinlock_t *ptl; > + pgtable_t pgtable = NULL; > struct page *page, *cow_page, *dirty_page = NULL; > - pte_t entry; > bool anon = false, page_mkwrite = false; > bool write = flags & FAULT_FLAG_WRITE; > + bool thp = flags & FAULT_FLAG_TRANSHUGE; > + unsigned long addr_aligned; > struct vm_fault vmf; > - int ret; > + int nr, ret; > + > + if (thp) { > + if (!transhuge_vma_suitable(vma, address)) > + return VM_FAULT_FALLBACK; > + if (unlikely(khugepaged_enter(vma)))
vma->vm_mm now is under the care of khugepaged, why? > + return VM_FAULT_OOM; > + addr_aligned = address & HPAGE_PMD_MASK; > + } else > + addr_aligned = address & PAGE_MASK; > -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
