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| author | Thomas Gleixner <tglx@linutronix.de> | 2022-04-15 21:19:50 +0200 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2022-04-27 15:51:08 +0200 |
| commit | 6d108c96bf23598cc3b4f91d60e9b7694abcd2a7 (patch) | |
| tree | 540dfbe0ed9a54028ec0aadae727686775b1f35d /drivers/nvdimm | |
| parent | dbb5ab6d2c0a7397d77c9f60fe23844d4fe4e634 (diff) | |
| download | linux-6d108c96bf23598cc3b4f91d60e9b7694abcd2a7.tar.gz | |
x86/aperfmperf: Dont wake idle CPUs in arch_freq_get_on_cpu()
aperfmperf_get_khz() already excludes idle CPUs from APERF/MPERF sampling
and that's a reasonable decision. There is no point in sending up to two
IPIs to an idle CPU just because someone reads a sysfs file.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Paul E. McKenney <paulmck@kernel.org>
Link: https://lore.kernel.org/r/20220415161206.419880163@linutronix.de
Diffstat (limited to 'drivers/nvdimm')
0 files changed, 0 insertions, 0 deletions