Hello, Pekka. 2012/12/7 Pekka Enberg <penberg@xxxxxxxxxx>: > On Thu, Dec 6, 2012 at 6:09 PM, Joonsoo Kim <js1304@xxxxxxxxx> wrote: >> The purpose of iterating a vmlist is finding vm area with specific >> virtual address. find_vm_area() is provided for this purpose >> and more efficient, because it uses a rbtree. >> So change it. > > You no longer take the 'vmlist_lock'. This is safe, because...? As Bob mentioned, find_vm_area() hold a 'vmap_area_lock' during searching a area. When we hold a 'vmap_area_lock', area can't be removed. So this change is safe. Thanks. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>