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accel/tcg: Pass last not end to page_collection_lock
Pass the address of the last byte to be changed, rather than the first address past the last byte. This avoids overflow when the last page of the address space is involved. Fixes a bug in the loop comparision where "<= end" would lock one more page than required. Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
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