lib/memregion.c

   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);