Commit 3552a17a authored by Russell King's avatar Russell King Committed by Sami Tolvanen
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BACKPORT: ARM: uaccess: provide uaccess_save_and_enable() and uaccess_restore() 



Provide uaccess_save_and_enable() and uaccess_restore() to permit
control of userspace visibility to the kernel, and hook these into
the appropriate places in the kernel where we need to access
userspace.

Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>

Change-Id: I89c68368df268cbefa169e9d647b12c27b281c0f
(cherry picked from commit 3fba7e23)
Signed-off-by: default avatarSami Tolvanen <samitolvanen@google.com>
parent 3cf26943
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