Merge branch 'readdir' (readdir speedup and sanity checking)

[linux-block.git] / include / linux / stackdepot.h

/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * A generic stack depot implementation
 *
 * Author: Alexander Potapenko <glider@google.com>
 * Copyright (C) 2016 Google, Inc.
 *
 * Based on code by Dmitry Chernenkov.
 */

#ifndef _LINUX_STACKDEPOT_H
#define _LINUX_STACKDEPOT_H

typedef u32 depot_stack_handle_t;

depot_stack_handle_t stack_depot_save(unsigned long *entries,
				      unsigned int nr_entries, gfp_t gfp_flags);

unsigned int stack_depot_fetch(depot_stack_handle_t handle,
			       unsigned long **entries);

#endif