Messages in this thread | | | Date | Fri, 21 Aug 2020 13:20:41 +0200 | From | Oleg Nesterov <> | Subject | Re: [PATCH] mm/kmemleak: rely on rcu for task stack scanning |
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On 08/20, Davidlohr Bueso wrote: > > @@ -1471,15 +1471,15 @@ static void kmemleak_scan(void) > if (kmemleak_stack_scan) { > struct task_struct *p, *g; > > - read_lock(&tasklist_lock); > - do_each_thread(g, p) { > + rcu_read_lock(); > + for_each_process_thread(g, p) { > void *stack = try_get_task_stack(p); > if (stack) { > scan_block(stack, stack + THREAD_SIZE, NULL); > put_task_stack(p); > } > - } while_each_thread(g, p); > - read_unlock(&tasklist_lock); > + } > + rcu_read_unlock();
Acked-by: Oleg Nesterov <oleg@redhat.com>
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