workqueue: Remove outdated comment about exceptional workers in unbind_workers()

Long time before, workers are not ALL bound after CPU_ONLINE, they can
still be running in other CPUs before self rebinding.

But the commit a9ab775bcadf ("workqueue: directly restore CPU affinity
of workers from CPU_ONLINE") makes rebind_workers() bind them all.

So all workers are on the CPU before the CPU is down.

And the comment in unbind_workers() refers to the workers "which are
still executing works from before the last CPU down" is outdated.
Just removed it.

Signed-off-by: Lai Jiangshan <laijs@linux.alibaba.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

diff --git a/kernel/workqueue.c b/kernel/workqueue.c
index f7f4a5f..ae58c6a 100644 (file)
--- a/kernel/workqueue.c
+++ b/kernel/workqueue.c
@@ -4978,9 +4978,7 @@ static void unbind_workers(int cpu)
                /*
                 * We've blocked all attach/detach operations. Make all workers
                 * unbound and set DISASSOCIATED.  Before this, all workers
-                * except for the ones which are still executing works from
-                * before the last CPU down must be on the cpu.  After
-                * this, they may become diasporas.
+                * must be on the cpu.  After this, they may become diasporas.
                 */
                for_each_pool_worker(worker, pool)
                        worker->flags |= WORKER_UNBOUND;