Re: [PATCH 4/7] mm, vmscan: show LRU name in mm_vmscan_lru_isolate tracepoint

[Nikolay Borisov <n.borisov.lkml@gmail.com>]

On 28.12.2016 18:00, Michal Hocko wrote:
> On Wed 28-12-16 17:50:31, Nikolay Borisov wrote:
>>
>>
>> On 28.12.2016 17:30, Michal Hocko wrote:
>>> From: Michal Hocko <mhocko@suse.com>
>>>
>>> mm_vmscan_lru_isolate currently prints only whether the LRU we isolate
>>> from is file or anonymous but we do not know which LRU this is. It is
>>> useful to know whether the list is file or anonymous as well. Change
>>
>> Maybe you wanted to say whether the list is ACTIVE/INACTIVE ?
> 
> You are right. I will update the wording to:
> "
> mm_vmscan_lru_isolate currently prints only whether the LRU we isolate
> from is file or anonymous but we do not know which LRU this is. It is
> useful to know whether the list is active or inactive as well as we
> use the same function to isolate pages for both of them. Change
> the tracepoint to show symbolic names of the lru rather.
> "
> 
> Does it sound better?

It's better. Just one more nit about the " as well as we
use the same function to isolate pages for both of them"

I think this can be reworded better. The way I understand is - it's
better to know whether it's active/inactive since we are using the same
function to do both, correct? If so then then perhaps the following is a
bit more clear:

"
It is useful to know whether the list is active or inactive, since we
are using the same function to isolate pages from both of them and it's
hard to distinguish otherwise.
"

But as I said - it's a minor nit.


> 
> Thanks!
>