Thread (46 messages) 46 messages, 6 authors, 2016-02-18

Re: [PATCH 01/33] mm: introduce get_user_pages_remote()

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From: Balbir Singh <bsingharora@gmail.com>
Date: 2016-02-15 06:09:49
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On Fri, 2016-02-12 at 13:01 -0800, Dave Hansen wrote:
From: Dave Hansen <dave.hansen@linux.intel.com>

For protection keys, we need to understand whether protections
should be enforced in software or not.A A In general, we enforce
protections when working on our own task, but not when on others.
We call these "current" and "remote" operations.

This patch introduces a new get_user_pages() variant:

A A A A A A A A get_user_pages_remote()

Which is a replacement for when get_user_pages() is called on
non-current tsk/mm.
In summary then get_user_pages_remote() do not enforce protections?

Balbir Singh.

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