CXL_REGION_F_LOCK
set_bit(CXL_REGION_F_LOCK, &cxlr->flags);
set_bit(CXL_REGION_F_LOCK, &cxlr->flags);
if (test_bit(CXL_REGION_F_LOCK, &cxlr->flags))
if (test_bit(CXL_REGION_F_LOCK, &cxlr->flags))
rc = test_bit(CXL_REGION_F_LOCK, &cxlr->flags);