1 // SPDX-License-Identifier: GPL-2.0-only 2 /* identifiers for device / performance-differentiated memory regions */ 3 #include <linux/idr.h> 4 #include <linux/types.h> 5 6 static DEFINE_IDA(memregion_ids); 7 8 int memregion_alloc(gfp_t gfp) 9 { 10 return ida_alloc(&memregion_ids, gfp); 11 } 12 EXPORT_SYMBOL(memregion_alloc); 13 14 void memregion_free(int id) 15 { 16 ida_free(&memregion_ids, id); 17 } 18 EXPORT_SYMBOL(memregion_free); 19