Re: [PATCH 1/3] ARM: Premit ioremap() to map reserved pages

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On Wed, Jan 22, 2014 at 12:54:13PM +0800, Wang Nan wrote:
> euler inclusion
> category: mm
> target: upstream, 3.10, 3.4

What does this mean?

> 
> ----------------------------------------
> 
> This patch release the limitation set by commit 309caa9cc, which
> prohibit ioremap() on all kernel managed pages.
> 
> Other architectures, such as x86 and powerpc (some specific platforms),
> allow such mapping.
> 
> To allow ioremap() pages is an efficient way to avoid arm's mysterious
> cache control. This feature will be used for arm kexec support to ensure
> sure copied data goes into RAM even without cache flushing.
> 
> Cc: <stable@xxxxxxxxxxxxxxx> # 3.4+
> Signed-off-by: Wang Nan <wangnan0@xxxxxxxxxx>

What is the git commit id of this patch in Linus's tree?

confused,

greg k-h
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