Re: [PATCH v2] mm: fix unexpected changes to {failslab|fail_page_alloc}.attr

[Wei Yongjun]

On 2022/11/8 20:04, Jason Gunthorpe wrote:
> On Tue, Nov 08, 2022 at 05:32:52PM +0800, Wei Yongjun wrote:
>>> So you want to set/clear this no_warn attr through the procfs or sysfs
>>> interface, so that you can easily disable/enable the slab/page fault
>>> warning message from the user mode. Right?
>>
>> Yes, just like:
>>
>> echo 1 > /sys/kernel/debug/failslab/no_warn  #disable message
>> echo 0 > /sys/kernel/debug/failslab/no_warn  #enable message
> 
> You can already do that:
> 
>  echo 0 > /sys/kernel/debug/failslab/verbose  #disable message

Got it, thanks.

Wei Yongjun