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/linux-master/arch/s390/mm/
H A Dgmap.c1467 unsigned long r2o, *r2e; local
1472 r2e = gmap_table_walk(sg, raddr, 3); /* get region-2 pointer */
1473 if (!r2e || !(*r2e & _REGION_ENTRY_ORIGIN))
1476 r2o = (unsigned long) (r2e - ((raddr & _REGION2_INDEX) >> _REGION2_SHIFT));
1478 r3t = *r2e & _REGION_ENTRY_ORIGIN;
1479 *r2e = _REGION2_ENTRY_EMPTY;

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