diff options
Diffstat (limited to 'mm/memory.c')
| -rw-r--r-- | mm/memory.c | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/mm/memory.c b/mm/memory.c index d52542680e1..8012c190789 100644 --- a/mm/memory.c +++ b/mm/memory.c @@ -3454,7 +3454,8 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma, { struct page *page = NULL; spinlock_t *ptl; - int current_nid, target_nid; + int current_nid = -1; + int target_nid; /* * The "pte" at this point cannot be used safely without @@ -3501,6 +3502,7 @@ int do_numa_page(struct mm_struct *mm, struct vm_area_struct *vma, current_nid = target_nid; out: + task_numa_fault(current_nid, 1); return 0; } @@ -3537,6 +3539,7 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma, for (addr = _addr + offset; addr < _addr + PMD_SIZE; pte++, addr += PAGE_SIZE) { pte_t pteval = *pte; struct page *page; + int curr_nid; if (!pte_present(pteval)) continue; if (!pte_numa(pteval)) @@ -3554,6 +3557,15 @@ static int do_pmd_numa_page(struct mm_struct *mm, struct vm_area_struct *vma, page = vm_normal_page(vma, addr, pteval); if (unlikely(!page)) continue; + /* only check non-shared pages */ + if (unlikely(page_mapcount(page) != 1)) + continue; + pte_unmap_unlock(pte, ptl); + + curr_nid = page_to_nid(page); + task_numa_fault(curr_nid, 1); + + pte = pte_offset_map_lock(mm, pmdp, addr, &ptl); } pte_unmap_unlock(orig_pte, ptl); |