ksm: add cond_resched() to the rmap_walks

[deliverable/linux.git] / mm / rmap.c

diff --git a/mm/rmap.c b/mm/rmap.c
index d40e7aefb888f2c9ab01ae444f52d753553af52a..78a692827a637ce27f7fc2eb5f498b8c18a22b4e 100644 (file)
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1609,6 +1609,8 @@ static int rmap_walk_anon(struct page *page, struct rmap_walk_control *rwc)
                struct vm_area_struct *vma = avc->vma;
                unsigned long address = vma_address(page, vma);
 
+               cond_resched();
+
                if (rwc->invalid_vma && rwc->invalid_vma(vma, rwc->arg))
                        continue;
 
@@ -1658,6 +1660,8 @@ static int rmap_walk_file(struct page *page, struct rmap_walk_control *rwc)
        vma_interval_tree_foreach(vma, &mapping->i_mmap, pgoff, pgoff) {
                unsigned long address = vma_address(page, vma);
 
+               cond_resched();
+
                if (rwc->invalid_vma && rwc->invalid_vma(vma, rwc->arg))
                        continue;