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/linux-6.1.9/arch/s390/mm/
Dgmap.c1452 unsigned long r2o, *r2e, *r3t; in gmap_unshadow_r3t() local
1456 r2e = gmap_table_walk(sg, raddr, 3); /* get region-2 pointer */ in gmap_unshadow_r3t()
1457 if (!r2e || !(*r2e & _REGION_ENTRY_ORIGIN)) in gmap_unshadow_r3t()
1460 r2o = (unsigned long) (r2e - ((raddr & _REGION2_INDEX) >> _REGION2_SHIFT)); in gmap_unshadow_r3t()
1462 r3t = (unsigned long *)(*r2e & _REGION_ENTRY_ORIGIN); in gmap_unshadow_r3t()
1463 *r2e = _REGION2_ENTRY_EMPTY; in gmap_unshadow_r3t()