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/linux-6.1.9/arch/s390/mm/
Dgmap.c1509 unsigned long r1o, *r1e, *r2t; in gmap_unshadow_r2t() local
1513 r1e = gmap_table_walk(sg, raddr, 4); /* get region-1 pointer */ in gmap_unshadow_r2t()
1514 if (!r1e || !(*r1e & _REGION_ENTRY_ORIGIN)) in gmap_unshadow_r2t()
1517 r1o = (unsigned long) (r1e - ((raddr & _REGION1_INDEX) >> _REGION1_SHIFT)); in gmap_unshadow_r2t()
1519 r2t = (unsigned long *)(*r1e & _REGION_ENTRY_ORIGIN); in gmap_unshadow_r2t()
1520 *r1e = _REGION1_ENTRY_EMPTY; in gmap_unshadow_r2t()