linux-kernel - Re: [PATCH 2/4] mm: Fix memcg stack accounting for sub-page stacks

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Message-ID: <20160714192445.GB13522@cmpxchg.org>
Date:	Thu, 14 Jul 2016 15:24:45 -0400
From:	Johannes Weiner <hannes@...xchg.org>
To:	Andy Lutomirski <luto@...nel.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>, x86@...nel.org,
	linux-kernel@...r.kernel.org, Brian Gerst <brgerst@...il.com>,
	Vladimir Davydov <vdavydov@...tuozzo.com>,
	Michal Hocko <mhocko@...nel.org>, linux-mm@...ck.org
Subject: Re: [PATCH 2/4] mm: Fix memcg stack accounting for sub-page stacks

On Thu, Jul 14, 2016 at 12:14:11PM -0700, Andy Lutomirski wrote:
> We should account for stacks regardless of stack size, and we need
> to account in sub-page units if THREAD_SIZE < PAGE_SIZE.  Change the
> units to kilobytes and Move it into account_kernel_stack().
> 
> Fixes: 12580e4b54ba8 ("mm: memcontrol: report kernel stack usage in cgroup2 memory.stat")
> Cc: Vladimir Davydov <vdavydov@...tuozzo.com>
> Cc: Johannes Weiner <hannes@...xchg.org>
> Cc: Michal Hocko <mhocko@...nel.org>
> Cc: linux-mm@...ck.org
> Reviewed-by: Josh Poimboeuf <jpoimboe@...hat.com>
> Reviewed-by: Vladimir Davydov <vdavydov@...tuozzo.com>
> Acked-by: Michal Hocko <mhocko@...e.com>
> Signed-off-by: Andy Lutomirski <luto@...nel.org>

Acked-by: Johannes Weiner <hannes@...xchg.org>