linux-kernel - Re: [PATCH] perf: kmaps: enforce usage of kmaps to protect futher bugs.

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Message-ID: <20150403084956.GA19328@gmail.com>
Date:	Fri, 3 Apr 2015 10:49:56 +0200
From:	Ingo Molnar <mingo@...nel.org>
To:	Wang Nan <wangnan0@...wei.com>
Cc:	jolsa@...hat.com, namhyung@...nel.org, jolsa@...nel.org,
	acme@...hat.com, linux-kernel@...r.kernel.org, pi3orama@....com
Subject: Re: [PATCH] perf: kmaps: enforce usage of kmaps to protect futher
 bugs.


* Wang Nan <wangnan0@...wei.com> wrote:

> This patch add checkings on every place where uses map__kmap and get
> kmaps from struct kmap. Error messages are added at map__kmap to warn
> invalud accessing of kmap (for the case of !map->dso->kernel, kmap(map)
> is not exists at all). Also, introduces map__kmaps() to warn
> uninitialized kmaps.
> 
> Signed-off-by: Wang Nan <wangnan0@...wei.com>

Reviewed-by: Ingo Molnar <mingo@...nel.org>

Thanks,

	Ingo
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