linux-kernel - RE: [PATCH 1/1] mm/swap.c: flush lru_add pvecs on compound page arrival

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Message-ID: <D6EDEBF1F91015459DB866AC4EE162CC023FB491@IRSMSX103.ger.corp.intel.com>
Date:	Thu, 16 Jun 2016 18:08:57 +0000
From:	"Odzioba, Lukasz" <lukasz.odzioba@...el.com>
To:	Michal Hocko <mhocko@...nel.org>,
	"Hansen, Dave" <dave.hansen@...el.com>
CC:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-mm@...ck.org" <linux-mm@...ck.org>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	"kirill.shutemov@...ux.intel.com" <kirill.shutemov@...ux.intel.com>,
	"aarcange@...hat.com" <aarcange@...hat.com>,
	"vdavydov@...allels.com" <vdavydov@...allels.com>,
	"mingli199x@...com" <mingli199x@...com>,
	"minchan@...nel.org" <minchan@...nel.org>,
	"Anaczkowski, Lukasz" <lukasz.anaczkowski@...el.com>,
	"Shutemov, Kirill" <kirill.shutemov@...el.com>
Subject: RE: [PATCH 1/1] mm/swap.c: flush lru_add pvecs on compound page
 arrival

On Thru 09-06-16 02:22 PM Michal Hocko wrote:
> I agree it would be better to do the same for others as well. Even if
> this is not an immediate problem for those.

I am not able to find clear reasons why we shouldn't do it for the rest.
Ok so what do we do now? I'll send v2 with proposed changes.
Then do we still want  to have stats on those pvecs?
In my opinion it's not worth it now.

Thanks,
Lukas