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Subject[PATCH 00/10 V2] workqueue: async worker destruction and worker attaching/detaching
Date
Patch1-4: async worker destruction

Patch2 reduces the review burden. It will be easier to review the whole
patchset if we know destroy_worker() is forced to destroy idle workers only.

Patch5-10: worker attaching/detaching and simplify the workers management

The code which attaches a worker to the pool and detaches a worker from the pool
is unfolded in create_worker()/destroy_worker().
The patchset moves this attaching/detaching code out and wraps them.

patch3-4 moves the detaching code out from destroy_worker(), and make
manger_mutex only protects the detaching code only rather than
protects the whole worker-destruction path.

patch5-7 makes manger_mutex only protects the attaching code rather than the
whole worker-creation path.

patch8: rename manger_mutex to attach_mutex
patch9-10: moves the attaching code out from create_worker() and use it for
rescuer.


Lai Jiangshan (10):
workqueue: use manager lock only to protect worker_idr
workqueue: destroy_worker() should destroy idle workers only
workqueue: async worker destruction
workqueue: destroy worker directly in the idle timeout handler
workqueue: separate iteration role from worker_idr
workqueue: convert worker_idr to worker_ida
workqueue: narrow the protection range of manager_mutex
workqueue: rename manager_mutex to attach_mutex
workqueue: separate pool-attaching code out from create_worker()
workqueue: use generic attach/detach routine for rescuers

kernel/workqueue.c | 401 ++++++++++++++-----------------------------
kernel/workqueue_internal.h | 1 +
2 files changed, 126 insertions(+), 276 deletions(-)

--
1.7.4.4



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