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With the support for hardware updates of the access and dirty states,
the following pte handling functions had to be implemented using
exclusives: __ptep_test_and_clear_young(), ptep_get_and_clear(),
ptep_set_wrprotect() and ptep_set_access_flags(). To take advantage of
the LSE atomic instructions and also make the code cleaner, convert
these pte functions to use the more generic cmpxchg()/xchg().
Reviewed-by: Will Deacon <will.deacon@arm.com>
Acked-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Steve Capper <steve.capper@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
3bbf7157ac