From 2607d7a6dba1e790aaacb14600ceffa3aa2f43e7 Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Mon, 9 Mar 2015 09:22:28 -0400
Subject: [PATCH] workqueue: keep track of the flushing task and pool manager

Add wq_barrier->task and worker_pool->manager to keep track of the
flushing task and pool manager respectively.  These are purely
informational and will be used to implement sysrq dump of workqueues.

Signed-off-by: Tejun Heo <tj@kernel.org>
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