ksm: add cond_resched() to the rmap_walks

[cascardo/linux.git] / mm / ksm.c

diff --git a/mm/ksm.c b/mm/ksm.c
index 7ee101e..e87dec7 100644 (file)
--- a/mm/ksm.c
+++ b/mm/ksm.c
@@ -1914,9 +1914,11 @@ again:
                struct anon_vma_chain *vmac;
                struct vm_area_struct *vma;
 
+               cond_resched();
                anon_vma_lock_read(anon_vma);
                anon_vma_interval_tree_foreach(vmac, &anon_vma->rb_root,
                                               0, ULONG_MAX) {
+                       cond_resched();
                        vma = vmac->vma;
                        if (rmap_item->address < vma->vm_start ||
                            rmap_item->address >= vma->vm_end)