kmemleak.h

  1/* SPDX-License-Identifier: GPL-2.0-only */
  2/*
  3 * include/linux/kmemleak.h
  4 *
  5 * Copyright (C) 2008 ARM Limited
  6 * Written by Catalin Marinas <catalin.marinas@arm.com>
  7 */
  8
  9#ifndef __KMEMLEAK_H
 10#define __KMEMLEAK_H
 11
 12#include <linux/slab.h>
 13#include <linux/vmalloc.h>
 14
 15#ifdef CONFIG_DEBUG_KMEMLEAK
 16
 17extern void kmemleak_init(void) __init;
 18extern void kmemleak_alloc(const void *ptr, size_t size, int min_count,
 19			   gfp_t gfp) __ref;
 20extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
 21				  gfp_t gfp) __ref;
 22extern void kmemleak_vmalloc(const struct vm_struct *area, size_t size,
 23			     gfp_t gfp) __ref;
 24extern void kmemleak_free(const void *ptr) __ref;
 25extern void kmemleak_free_part(const void *ptr, size_t size) __ref;
 26extern void kmemleak_free_percpu(const void __percpu *ptr) __ref;
 27extern void kmemleak_update_trace(const void *ptr) __ref;
 28extern void kmemleak_not_leak(const void *ptr) __ref;
 29extern void kmemleak_transient_leak(const void *ptr) __ref;
 30extern void kmemleak_ignore(const void *ptr) __ref;
 31extern void kmemleak_ignore_percpu(const void __percpu *ptr) __ref;
 32extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref;
 33extern void kmemleak_no_scan(const void *ptr) __ref;
 34extern void kmemleak_alloc_phys(phys_addr_t phys, size_t size,
 35				gfp_t gfp) __ref;
 36extern void kmemleak_free_part_phys(phys_addr_t phys, size_t size) __ref;
 37extern void kmemleak_ignore_phys(phys_addr_t phys) __ref;
 38
 39static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
 40					    int min_count, slab_flags_t flags,
 41					    gfp_t gfp)
 42{
 43	if (!(flags & SLAB_NOLEAKTRACE))
 44		kmemleak_alloc(ptr, size, min_count, gfp);
 45}
 46
 47static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags)
 48{
 49	if (!(flags & SLAB_NOLEAKTRACE))
 50		kmemleak_free(ptr);
 51}
 52
 53static inline void kmemleak_erase(void **ptr)
 54{
 55	*ptr = NULL;
 56}
 57
 58#else
 59
 60static inline void kmemleak_init(void)
 61{
 62}
 63static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count,
 64				  gfp_t gfp)
 65{
 66}
 67static inline void kmemleak_alloc_recursive(const void *ptr, size_t size,
 68					    int min_count, slab_flags_t flags,
 69					    gfp_t gfp)
 70{
 71}
 72static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size,
 73					 gfp_t gfp)
 74{
 75}
 76static inline void kmemleak_vmalloc(const struct vm_struct *area, size_t size,
 77				    gfp_t gfp)
 78{
 79}
 80static inline void kmemleak_free(const void *ptr)
 81{
 82}
 83static inline void kmemleak_free_part(const void *ptr, size_t size)
 84{
 85}
 86static inline void kmemleak_free_recursive(const void *ptr, slab_flags_t flags)
 87{
 88}
 89static inline void kmemleak_free_percpu(const void __percpu *ptr)
 90{
 91}
 92static inline void kmemleak_update_trace(const void *ptr)
 93{
 94}
 95static inline void kmemleak_not_leak(const void *ptr)
 96{
 97}
 98static inline void kmemleak_transient_leak(const void *ptr)
 99{
100}
101static inline void kmemleak_ignore_percpu(const void __percpu *ptr)
102{
103}
104static inline void kmemleak_ignore(const void *ptr)
105{
106}
107static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp)
108{
109}
110static inline void kmemleak_erase(void **ptr)
111{
112}
113static inline void kmemleak_no_scan(const void *ptr)
114{
115}
116static inline void kmemleak_alloc_phys(phys_addr_t phys, size_t size,
117				       gfp_t gfp)
118{
119}
120static inline void kmemleak_free_part_phys(phys_addr_t phys, size_t size)
121{
122}
123static inline void kmemleak_ignore_phys(phys_addr_t phys)
124{
125}
126
127#endif	/* CONFIG_DEBUG_KMEMLEAK */
128
129#endif	/* __KMEMLEAK_H */