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| author | Sebastian Andrzej Siewior <[email protected]> | 2017-05-24 10:15:14 +0200 |
|---|---|---|
| committer | Thomas Gleixner <[email protected]> | 2017-05-26 10:10:35 +0200 |
| commit | 71def423fe3da0d40ad3427a4cd5f9edc53bff67 (patch) | |
| tree | 71a4e6c37a8972226dcf828474b8090d355a727f /tools/perf/scripts/python/check-perf-trace.py | |
| parent | ade3f680a76b474d9f5375a9b1d100ee787bf469 (diff) | |
cpu/hotplug: Provide cpuhp_setup/remove_state[_nocalls]_cpuslocked()
Some call sites of cpuhp_setup/remove_state[_nocalls]() are within a
cpus_read locked region.
cpuhp_setup/remove_state[_nocalls]() call cpus_read_lock() as well, which
is possible in the current implementation but prevents converting the
hotplug locking to a percpu rwsem.
Provide locked versions of the interfaces to avoid nested calls to
cpus_read_lock().
Signed-off-by: Sebastian Andrzej Siewior <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Tested-by: Paul E. McKenney <[email protected]>
Acked-by: Ingo Molnar <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Steven Rostedt <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions