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 #include <linux/memregion.h>
   6
   7 static DEFINE_IDA(memregion_ids);
   8
   9 int memregion_alloc(gfp_t gfp)
  10 {
  11         return ida_alloc(&memregion_ids, gfp);
  12 }
  13 EXPORT_SYMBOL(memregion_alloc);
  14
  15 void memregion_free(int id)
  16 {
  17         ida_free(&memregion_ids, id);
  18 }
  19 EXPORT_SYMBOL(memregion_free);