1 /* 2 * include/linux/kmemleak.h 3 * 4 * Copyright (C) 2008 ARM Limited 5 * Written by Catalin Marinas <catalin.marinas@arm.com> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License version 2 as 9 * published by the Free Software Foundation. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 19 */ 20 21 #ifndef __KMEMLEAK_H 22 #define __KMEMLEAK_H 23 24 #include <linux/slab.h> 25 26 #ifdef CONFIG_DEBUG_KMEMLEAK 27 28 extern void kmemleak_init(void) __init; 29 extern void kmemleak_alloc(const void *ptr, size_t size, int min_count, 30 gfp_t gfp) __ref; 31 extern void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size, 32 gfp_t gfp) __ref; 33 extern void kmemleak_free(const void *ptr) __ref; 34 extern void kmemleak_free_part(const void *ptr, size_t size) __ref; 35 extern void kmemleak_free_percpu(const void __percpu *ptr) __ref; 36 extern void kmemleak_update_trace(const void *ptr) __ref; 37 extern void kmemleak_not_leak(const void *ptr) __ref; 38 extern void kmemleak_ignore(const void *ptr) __ref; 39 extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref; 40 extern void kmemleak_no_scan(const void *ptr) __ref; 41 extern void kmemleak_alloc_phys(phys_addr_t phys, size_t size, int min_count, 42 gfp_t gfp) __ref; 43 extern void kmemleak_free_part_phys(phys_addr_t phys, size_t size) __ref; 44 extern void kmemleak_not_leak_phys(phys_addr_t phys) __ref; 45 extern void kmemleak_ignore_phys(phys_addr_t phys) __ref; 46 47 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, 48 int min_count, unsigned long flags, 49 gfp_t gfp) 50 { 51 if (!(flags & SLAB_NOLEAKTRACE)) 52 kmemleak_alloc(ptr, size, min_count, gfp); 53 } 54 55 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags) 56 { 57 if (!(flags & SLAB_NOLEAKTRACE)) 58 kmemleak_free(ptr); 59 } 60 61 static inline void kmemleak_erase(void **ptr) 62 { 63 *ptr = NULL; 64 } 65 66 #else 67 68 static inline void kmemleak_init(void) 69 { 70 } 71 static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count, 72 gfp_t gfp) 73 { 74 } 75 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, 76 int min_count, unsigned long flags, 77 gfp_t gfp) 78 { 79 } 80 static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size, 81 gfp_t gfp) 82 { 83 } 84 static inline void kmemleak_free(const void *ptr) 85 { 86 } 87 static inline void kmemleak_free_part(const void *ptr, size_t size) 88 { 89 } 90 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags) 91 { 92 } 93 static inline void kmemleak_free_percpu(const void __percpu *ptr) 94 { 95 } 96 static inline void kmemleak_update_trace(const void *ptr) 97 { 98 } 99 static inline void kmemleak_not_leak(const void *ptr) 100 { 101 } 102 static inline void kmemleak_ignore(const void *ptr) 103 { 104 } 105 static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) 106 { 107 } 108 static inline void kmemleak_erase(void **ptr) 109 { 110 } 111 static inline void kmemleak_no_scan(const void *ptr) 112 { 113 } 114 static inline void kmemleak_alloc_phys(phys_addr_t phys, size_t size, 115 int min_count, gfp_t gfp) 116 { 117 } 118 static inline void kmemleak_free_part_phys(phys_addr_t phys, size_t size) 119 { 120 } 121 static inline void kmemleak_not_leak_phys(phys_addr_t phys) 122 { 123 } 124 static inline void kmemleak_ignore_phys(phys_addr_t phys) 125 { 126 } 127 128 #endif /* CONFIG_DEBUG_KMEMLEAK */ 129 130 #endif /* __KMEMLEAK_H */ 131