linux-user: Fix mmap_lock ordering
mmap_lock() can be called while tb_lock() is being held. To avoid deadlock when one thread is holding mmap_lock and another tb_lock, _always_ lock first tb_lock(). Signed-off-by: NRiku Voipio <riku.voipio@nokia.com> Signed-off-by: NAurelien Jarno <aurelien@aurel32.net>
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