Re: [PATCH v6 08/10] x86, mpx: add prctl commands PR_MPX_REGISTER, PR_MPX_UNREGISTER

From: Andy Lutomirski
Date: Mon Jun 23 2014 - 16:00:22 EST


On 06/18/2014 02:44 AM, Qiaowei Ren wrote:
> This patch adds the PR_MPX_REGISTER and PR_MPX_UNREGISTER prctl()
> commands. These commands can be used to register and unregister MPX
> related resource on the x86 platform.
>
> The base of the bounds directory is set into mm_struct during
> PR_MPX_REGISTER command execution. This member can be used to
> check whether one application is mpx enabled.

The register and unregister operations seem to be almost the same thing.
How about just PR_SYNC_MPX?

Also, would this make more sense in arch_prctl?

--Andy
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