• Russell King's avatar
    ARM: domains: switch to keeping domain value in register · 1eef5d2f
    Russell King authored
    Rather than modifying both the domain access control register and our
    per-thread copy, modify only the domain access control register, and
    use the per-thread copy to save and restore the register over context
    switches.  We can also avoid the explicit initialisation of the
    init thread_info structure.
    This allows us to avoid needing to gain access to the thread information
    at the uaccess control sites.
    Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>