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Diffstat (limited to 'mm/ksm.c')
-rw-r--r--mm/ksm.c18
1 files changed, 11 insertions, 7 deletions
diff --git a/mm/ksm.c b/mm/ksm.c
index fd6d03cb0463..533ede86b4b9 100644
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -981,11 +981,13 @@ static int unmerge_and_remove_all_rmap_items(void)
struct mm_slot, mm_list);
spin_unlock(&ksm_mmlist_lock);
- for (mm_slot = ksm_scan.mm_slot;
- mm_slot != &ksm_mm_head; mm_slot = ksm_scan.mm_slot) {
+ for (mm_slot = ksm_scan.mm_slot; mm_slot != &ksm_mm_head;
+ mm_slot = ksm_scan.mm_slot) {
+ VMA_ITERATOR(vmi, mm_slot->mm, 0);
+
mm = mm_slot->mm;
mmap_read_lock(mm);
- for (vma = mm->mmap; vma; vma = vma->vm_next) {
+ for_each_vma(vmi, vma) {
if (ksm_test_exit(mm))
break;
if (!(vma->vm_flags & VM_MERGEABLE) || !vma->anon_vma)
@@ -2243,6 +2245,7 @@ static struct rmap_item *scan_get_next_rmap_item(struct page **page)
struct mm_slot *slot;
struct vm_area_struct *vma;
struct rmap_item *rmap_item;
+ struct vma_iterator vmi;
int nid;
if (list_empty(&ksm_mm_head.mm_list))
@@ -2301,13 +2304,13 @@ next_mm:
}
mm = slot->mm;
+ vma_iter_init(&vmi, mm, ksm_scan.address);
+
mmap_read_lock(mm);
if (ksm_test_exit(mm))
- vma = NULL;
- else
- vma = find_vma(mm, ksm_scan.address);
+ goto no_vmas;
- for (; vma; vma = vma->vm_next) {
+ for_each_vma(vmi, vma) {
if (!(vma->vm_flags & VM_MERGEABLE))
continue;
if (ksm_scan.address < vma->vm_start)
@@ -2345,6 +2348,7 @@ next_mm:
}
if (ksm_test_exit(mm)) {
+no_vmas:
ksm_scan.address = 0;
ksm_scan.rmap_list = &slot->rmap_list;
}