Re: [PATCH v7 15/21] x86/split_lock: Add a sysfs interface to enable/disable split lock detection during run time

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On Wed, 17 Apr 2019, Fenghua Yu wrote:

> The interface /sys/device/system/cpu/split_lock_detect is added
> to allow user to control split lock detection and show current split
> lock detection setting.
> 
> Writing [yY1] or [oO][nN] to the file enables split lock detection and
> writing [nN0] or [oO][fF] disables split lock detection. Split lock
> detection is enabled or disabled on all CPUs.
> 
> Reading the file returns current global split lock detection setting:
> 0: disabled
> 1: enabled

Again, You explain WHAT this patch does and still there is zero
justification why this sysfs knob is needed at all. I still do not see any
reason why this knob should exist.

Thanks,

	tglx





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