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Subject[PATCH] kthread: Export kthread_data()
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 <>
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;

* kthread_probe_data - speculative version of kthread_data()
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