Re: [PATCH v2] kmemleak: Turn kmemleak_lock to raw spinlock on RT

[He Zhe]

On 2018/12/19 23:30, Sebastian Andrzej Siewior wrote:
> On 2018-12-18 15:07:45 [+0000], Catalin Marinas wrote:
> â
>> It may be worth running some performance/latency tests during kmemleak
>> scanning (echo scan > /sys/kernel/debug/kmemleak) but at a quick look,
>> I don't think we'd see any difference with a raw_spin_lock_t.
>>
>> With a bit more thinking (though I'll be off until the new year), we
>> could probably get rid of the kmemleak_lock entirely in scan_block() and
>> make lookup_object() and the related rbtree code in kmemleak RCU-safe.
> Okay. So let me apply that patch into my RT tree with your ack (from the
> other email). And then I hope that it either shows up upstream or gets
> replaced with RCU in the ende :)

I'd like to do the upstreaming or replacing. Thanks.

Zhe

>
> Thanks.
>
> Sebastian
>