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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-02-15 02:13:42 +0100 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-03-09 14:41:03 +0100 |
commit | e4db2813d2e558b6b6bee464308678a57732b390 (patch) | |
tree | 2cd9422569ce684971136492b12323d40c3e0a26 /fs | |
parent | f62b93740c30d0a3f50258d45415f00b763dd70a (diff) | |
download | linux-e4db2813d2e558b6b6bee464308678a57732b390.tar.gz |
cpufreq: governor: Avoid atomic operations in hot paths
Rework the handling of work items by dbs_update_util_handler() and dbs_work_handler() so the former (which is executed in scheduler paths) only uses atomic operations when absolutely necessary. That is, when the policy is shared and dbs_update_util_handler() has already decided that this is the time to queue up a work item. In particular, this avoids the atomic ops entirely on platforms where policy objects are never shared. Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Diffstat (limited to 'fs')
0 files changed, 0 insertions, 0 deletions