1 files changed, 0 insertions, 16 deletions

diff --git a/block/elevator.c b/block/elevator.c
index 66343d6917d0..6a343e8f8319 100644
--- a/block/elevator.c
+++ b/block/elevator.c
@@ -913,22 +913,6 @@ EXPORT_SYMBOL_GPL(elv_register);
 
 void elv_unregister(struct elevator_type *e)
 {
-        struct task_struct *g, *p;
-
-        /*
-         * Iterate every thread in the process to remove the io contexts.
-         */
-        if (e->ops.trim) {
-                read_lock(&tasklist_lock);
-                do_each_thread(g, p) {
-                        task_lock(p);
-                        if (p->io_context)
-                                e->ops.trim(p->io_context);
-                        task_unlock(p);
-                } while_each_thread(g, p);
-                read_unlock(&tasklist_lock);
-        }
-
         spin_lock(&elv_list_lock);
         list_del_init(&e->list);
         spin_unlock(&elv_list_lock);