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| author |   Lai Jiangshan <laijs@cn.fujitsu.com> | 2015-05-19 18:03:47 +0800 |
|---|---|---|
| committer |   Tejun Heo <tj@kernel.org> | 2015-05-19 17:37:00 -0400 |
| commit | a0111cf6710bd1b4145ef313d3f4772602af051b (patch) | |
| tree | 21acf858096755c322754314519dd04d2c8ed335 /tools/perf/scripts/python/call-graph-from-postgresql.py | |
| parent | workqueue: simplify wq_update_unbound_numa() (diff) | |
| download | linux-dev-a0111cf6710bd1b4145ef313d3f4772602af051b.tar.xz linux-dev-a0111cf6710bd1b4145ef313d3f4772602af051b.zip | |
workqueue: separate out and refactor the locking of applying attrs
Applying attrs requires two locks: get_online_cpus() and wq_pool_mutex,
and this code is duplicated at two places (apply_workqueue_attrs() and
workqueue_set_unbound_cpumask()). So we separate out this locking
code into apply_wqattrs_[un]lock() and do a minor refactor on
apply_workqueue_attrs().
The apply_wqattrs_[un]lock() will be also used on later patch for
ensuring attrs changes are properly synchronized.
tj: minor updates to comments
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'tools/perf/scripts/python/call-graph-from-postgresql.py')
0 files changed, 0 insertions, 0 deletions