linux/lib/memregion.c

// SPDX-License-Identifier: GPL-2.0-only
/* identifiers for device / performance-differentiated memory regions */
#include <linux/idr.h>
#include <linux/types.h>
#include <linux/memregion.h>

static DEFINE_IDA(memregion_ids);

int memregion_alloc(gfp_t gfp)
{ … }
EXPORT_SYMBOL(…);

void memregion_free(int id)
{ … }
EXPORT_SYMBOL(…);