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| author | Tejun Heo | 2013-03-12 19:29:59 +0100 |
|---|---|---|
| committer | Tejun Heo | 2013-03-12 19:29:59 +0100 |
| commit | 493a1724fef9a3e931d9199f1a19e358e526a6e7 (patch) | |
| tree | 5cb9ae483904b26b885ae5fb9fc7e7fdca635e71 /kernel/workqueue_internal.h | |
| parent | workqueue: restructure pool / pool_workqueue iterations in freeze/thaw functions (diff) | |
| download | kernel-qcow2-linux-493a1724fef9a3e931d9199f1a19e358e526a6e7.tar.gz kernel-qcow2-linux-493a1724fef9a3e931d9199f1a19e358e526a6e7.tar.xz kernel-qcow2-linux-493a1724fef9a3e931d9199f1a19e358e526a6e7.zip | |
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 'kernel/workqueue_internal.h')
0 files changed, 0 insertions, 0 deletions