diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2017-05-24 10:15:24 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2017-05-26 10:10:40 +0200 |
| commit | 04b247c2ebdd6ba1c46c7c22546229a89760b43a (patch) | |
| tree | c9e63f22bc6d39d4d9496ac586c70844cc30ead5 /arch/arm/kernel/hw_breakpoint.c | |
| parent | e9f5d63f84febb7e9dfe4e0dc696adf88053fbf2 (diff) | |
perf/x86/intel/cqm: Use cpuhp_setup_state_cpuslocked()
intel_cqm_init() holds get_online_cpus() while registerring the hotplug
callbacks.
cpuhp_setup_state() invokes get_online_cpus() as well. This is correct, but
prevents the conversion of the hotplug locking to a percpu rwsem.
Use cpuhp_setup_state_cpuslocked() to avoid the nested call. Convert
*_online_cpus() to the new interfaces while at it.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Ingo Molnar <mingo@kernel.org>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/20170524081548.075604046@linutronix.de
Diffstat (limited to 'arch/arm/kernel/hw_breakpoint.c')
0 files changed, 0 insertions, 0 deletions