linux-kernel - Re: [PATCH 2/3] mm/cma: add new tracepoint, test_pages

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Date:	Tue, 10 Nov 2015 17:06:31 +0100
From:	Michal Nazarewicz <mina86@...a86.com>
To:	Joonsoo Kim <js1304@...il.com>,
	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Minchan Kim <minchan@...nel.org>, linux-mm@...ck.org,
	linux-kernel@...r.kernel.org, Joonsoo Kim <iamjoonsoo.kim@....com>
Subject: Re: [PATCH 2/3] mm/cma: add new tracepoint, test_pages_isolated

On Mon, Nov 09 2015, Joonsoo Kim wrote:
> cma allocation should be guranteeded to succeed, but, sometimes,
> it could be failed in current implementation. To track down
> the problem, we need to know which page is problematic and
> this new tracepoint will report it.
>
> Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@....com>

I’m not really familiar with tracing framework but other then that:

Acked-by: Michal Nazarewicz <mina86@...a86.com>

> ---
>  include/trace/events/cma.h | 26 ++++++++++++++++++++++++++
>  mm/page_isolation.c        |  5 +++++
>  2 files changed, 31 insertions(+)

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