When multiple kernel threads are created to cooperatively work on a common task, we may need a convenient way to access data that are specific to each kthread.
The kthread_data() function fits this need. However, it was not visible to kthreads started in a kernel module. To solve this problem, the kthread_data() function is now exported allowing kthreads from kernel modules to use it. Signed-off-by: Waiman Long <[email protected]> --- kernel/kthread.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/kthread.c b/kernel/kthread.c index cd50e99..a71d461 100644 --- a/kernel/kthread.c +++ b/kernel/kthread.c @@ -156,6 +156,7 @@ void *kthread_data(struct task_struct *task) { return to_kthread(task)->data; } +EXPORT_SYMBOL(kthread_data); /** * kthread_probe_data - speculative version of kthread_data() -- 1.8.3.1
