Re: [PATCH 1/4] core, x86: Add user return notifiers

[H. Peter Anvin]

On 09/16/2009 05:45 AM, Avi Kivity wrote:
> Add a general per-cpu notifier that is called whenever the kernel is
> about to return to userspace.  The notifier uses a thread_info flag
> and existing checks, so there is no impact on user return or context
> switch fast paths.
> 
> Signed-off-by: Avi Kivity <avi@xxxxxxxxxx>

The concept of this patch looks entirely sane, as does the code,
*except* for:

+#include <linux/user-return-notifier.h>

... missing header file, and ...

+obj-$(CONFIG_USER_RETURN_NOTIFIER) += user-return-notifier.o

... missing source file.

Could you fix the patch, please?

	-hpa

-- 
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel.  I don't speak on their behalf.

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