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| author | Mike Galbraith <umgwanakikbuti@gmail.com> | 2016-02-09 23:59:38 +0100 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2016-02-09 23:59:38 +0100 |
| commit | ef557180447fa9a7a0affd3abb21ecceb4b5e125 (patch) | |
| tree | b55840888c855b2c605df724a3b647ee82543622 /lib/Kconfig.debug | |
| parent | Revert "workqueue: make sure delayed work run in local cpu" (diff) | |
| download | linux-ef557180447fa9a7a0affd3abb21ecceb4b5e125.tar.xz linux-ef557180447fa9a7a0affd3abb21ecceb4b5e125.zip | |
workqueue: schedule WORK_CPU_UNBOUND work on wq_unbound_cpumask CPUs
WORK_CPU_UNBOUND work items queued to a bound workqueue always run
locally. This is a good thing normally, but not when the user has
asked us to keep unbound work away from certain CPUs. Round robin
these to wq_unbound_cpumask CPUs instead, as perturbation avoidance
trumps performance.
tj: Cosmetic and comment changes. WARN_ON_ONCE() dropped from empty
(wq_unbound_cpumask AND cpu_online_mask). If we want that, it
should be done when config changes.
Signed-off-by: Mike Galbraith <umgwanakikbuti@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
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