workqueue: defer the worker wakeup outside pool->lock in process_one_work()

Use kick_pool_pick() to select and claim the worker under pool->lock and
issue the wakeup with wake_up_process() after the lock is dropped.

Unlike __queue_work(), this path has no surrounding RCU section, so take
rcu_read_lock() before dropping pool->lock to keep the picked worker's
task_struct valid across the wakeup.

Signed-off-by: Breno Leitao <leitao@debian.org>
Tested-by: Krishna Magar <kmagar@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>

0 files changed, 0 insertions, 0 deletions