437 	down_read(&mm->mmap_sem);  in break_cow()
441 	up_read(&mm->mmap_sem);  in break_cow()
465 	down_read(&mm->mmap_sem);  in get_mergeable_page()
481 	up_read(&mm->mmap_sem);  in get_mergeable_page()
783 		down_read(&mm->mmap_sem);  in unmerge_and_remove_all_rmap_items()
807 			up_read(&mm->mmap_sem);  in unmerge_and_remove_all_rmap_items()
811 			up_read(&mm->mmap_sem);  in unmerge_and_remove_all_rmap_items()
821 	up_read(&mm->mmap_sem);  in unmerge_and_remove_all_rmap_items()
1088 	down_read(&mm->mmap_sem);  in try_to_merge_with_ksm_page()
1104 	up_read(&mm->mmap_sem);  in try_to_merge_with_ksm_page()
1619 	down_read(&mm->mmap_sem);  in scan_get_next_rmap_item()
1654 				up_read(&mm->mmap_sem);  in scan_get_next_rmap_item()
1692 		up_read(&mm->mmap_sem);  in scan_get_next_rmap_item()
1696 		up_read(&mm->mmap_sem);  in scan_get_next_rmap_item()
1876 		down_write(&mm->mmap_sem);  in __ksm_exit()
1877 		up_write(&mm->mmap_sem);  in __ksm_exit()