Increment the nr_tasks associated with the io_context when CLONE_IO flag
is set.

Signed-off-by: Nikanth Karthikesan <knikanth@suse.de>

--
diff --git a/kernel/fork.c b/kernel/fork.c
index dd249c3..01e843b 100644
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -812,6 +812,7 @@ static int copy_io(unsigned long clone_f
 		tsk->io_context = ioc_task_link(ioc);
 		if (unlikely(!tsk->io_context))
 			return -ENOMEM;
+		atomic_inc(&tsk->io_context->nr_tasks);
 	} else if (ioprio_valid(ioc->ioprio)) {
 		tsk->io_context = alloc_io_context(GFP_KERNEL, -1);
 		if (unlikely(!tsk->io_context))


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