diff options
| -rw-r--r-- | mm/mempolicy.c | 6 | ||||
| -rw-r--r-- | mm/mmap.c | 2 |
2 files changed, 6 insertions, 2 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index 7431001..4baf12e 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -732,7 +732,10 @@ static int mbind_range(struct mm_struct *mm, unsigned long start, if (prev) { vma = prev; next = vma->vm_next; - continue; + if (mpol_equal(vma_policy(vma), new_pol)) + continue; + /* vma_merge() joined vma && vma->next, case 8 */ + goto replace; } if (vma->vm_start != vmstart) { err = split_vma(vma->vm_mm, vma, vmstart, 1); @@ -744,6 +747,7 @@ static int mbind_range(struct mm_struct *mm, unsigned long start, if (err) goto out; } + replace: err = vma_replace_policy(vma, new_pol); if (err) goto out; @@ -865,7 +865,7 @@ again: remove_next = 1 + (end > next->vm_end); if (next->anon_vma) anon_vma_merge(vma, next); mm->map_count--; - vma_set_policy(vma, vma_policy(next)); + mpol_put(vma_policy(next)); kmem_cache_free(vm_area_cachep, next); /* * In mprotect's case 6 (see comments on vma_merge), |