workqueue: keep track of the flushing task and pool manager
authorTejun Heo <tj@kernel.org>
Mon, 9 Mar 2015 13:22:28 +0000 (09:22 -0400)
committerTejun Heo <tj@kernel.org>
Mon, 9 Mar 2015 13:22:28 +0000 (09:22 -0400)
commit2607d7a6dba1e790aaacb14600ceffa3aa2f43e7
tree612916bb4fcb7a0a58f555815bd712a08ae1fa48
parente2dca7adff8f3fae0ab250a6362798550b3c79ee
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>
kernel/workqueue.c