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authorTejun Heo <tj@kernel.org>2013-03-12 11:29:59 -0700
committerTejun Heo <tj@kernel.org>2013-03-12 11:29:59 -0700
commit493a1724fef9a3e931d9199f1a19e358e526a6e7 (patch)
tree5cb9ae483904b26b885ae5fb9fc7e7fdca635e71 /include/linux/workqueue.h
parent24b8a84718ed28a51b452881612c267ba3f2b263 (diff)
workqueue: add wokrqueue_struct->maydays list to replace mayday cpu iterators
Similar to how pool_workqueue iteration used to be, raising and servicing mayday requests is based on CPU numbers. It's hairy because cpumask_t may not be able to handle WORK_CPU_UNBOUND and cpumasks are assumed to be always set on UP. This is ugly and can't handle multiple unbound pools to be added for unbound workqueues w/ custom attributes. Add workqueue_struct->maydays. When a pool_workqueue needs rescuing, it gets chained on the list through pool_workqueue->mayday_node and rescuer_thread() consumes the list until it's empty. This patch doesn't introduce any visible behavior changes. Signed-off-by: Tejun Heo <tj@kernel.org> Reviewed-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Diffstat (limited to 'include/linux/workqueue.h')
0 files changed, 0 insertions, 0 deletions