x86/mce/amd: Straighten CPU hotplug path
mce_threshold_create_device() hotplug callback runs on the plugged in
CPU so:
- use this_cpu_read() which is faster
- pass in struct threshold_bank **bp to threshold_create_bank() and
instead of doing per-CPU accesses
- Use rdmsr_safe() instead of rdmsr_safe_on_cpu() which avoids an IPI.
No functional changes.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/20200403161943.1458-6-bp@alien8.de
1 file changed