1 files changed, 1 insertions, 2 deletions

diff --git a/fs/proc/task_mmu.c b/fs/proc/task_mmu.c
index 7e5e7ec2e36d..d2fa42006d8f 100644
--- a/fs/proc/task_mmu.c
+++ b/fs/proc/task_mmu.c
@@ -419,7 +419,6 @@ static struct numa_maps *get_numa_maps(const struct vm_area_struct *vma)
         for_each_node(i)
                 md->node[i] =0;
 
-        spin_lock(&mm->page_table_lock);
         for (vaddr = vma->vm_start; vaddr < vma->vm_end; vaddr += PAGE_SIZE) {
                 page = follow_page(mm, vaddr, 0);
                 if (page) {
@@ -434,8 +433,8 @@ static struct numa_maps *get_numa_maps(const struct vm_area_struct *vma)
                                 md->anon++;
                         md->node[page_to_nid(page)]++;
                 }
+                cond_resched();
         }
-        spin_unlock(&mm->page_table_lock);
         return md;
 }