[<c1052589>] worker_thread+0xf9/0x280
 [   73.866676]  [<c1060c7e>] ? complete+0x4e/0x60
 [   73.866676]  [<c1052490>] ? manage_workers.isra.24+0x1c0/0x1c0
 [   73.866676]  [<c10570b2>] kthread+0x72/0x80
 [   73.866676]  [<c1057040>] ? kthread_freezable_should_stop+0x50/0x50
 [   73.866676]  [<c13c20fe>] kernel_thread_helper+0x6/0x10
 [   73.866676] Code: bc 27 00 00 00 00 55 89 e5 57 56 53 83 ec 24 3e 8d 74 26
 00 89 c6 8b 02 89 d3 c7 45 f0 00 00 00 00 89 c2 30 d2 a8 04 0f 44 55 f0 <8b> 02 89 55 f0 89 da c1 ea
 0a 89 45 ec 89 d8 8b 4d ec c1 e8 04
 [   73.866676] EIP: [<c1051d65>] process_one_work+0x25/0x3b0 SS:ESP 0068:f5705f68
 [   73.866676] CR2: 0000000045440000
 [   73.866676] ---[ end trace 4d8a1887edca08c5 ]---
 [   73.866676] note: kworker/u:4[62] exited with preempt_count 1

Signed-off-by: Li Dongyang <Jerry87905@gmail.com>
Signed-off-by: Matthew Garrett <mjg@redhat.com>