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 42 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, 43 int min_count, unsigned long flags, 44 gfp_t gfp) 45 { 46 if (!(flags & SLAB_NOLEAKTRACE)) 47 kmemleak_alloc(ptr, size, min_count, gfp); 48 } 49 50 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags) 51 { 52 if (!(flags & SLAB_NOLEAKTRACE)) 53 kmemleak_free(ptr); 54 } 55 56 static inline void kmemleak_erase(void **ptr) 57 { 58 *ptr = NULL; 59 } 60 61 #else 62 63 static inline void kmemleak_init(void) 64 { 65 } 66 static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count, 67 gfp_t gfp) 68 { 69 } 70 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, 71 int min_count, unsigned long flags, 72 gfp_t gfp) 73 { 74 } 75 static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size, 76 gfp_t gfp) 77 { 78 } 79 static inline void kmemleak_free(const void *ptr) 80 { 81 } 82 static inline void kmemleak_free_part(const void *ptr, size_t size) 83 { 84 } 85 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags) 86 { 87 } 88 static inline void kmemleak_free_percpu(const void __percpu *ptr) 89 { 90 } 91 static inline void kmemleak_update_trace(const void *ptr) 92 { 93 } 94 static inline void kmemleak_not_leak(const void *ptr) 95 { 96 } 97 static inline void kmemleak_ignore(const void *ptr) 98 { 99 } 100 static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) 101 { 102 } 103 static inline void kmemleak_erase(void **ptr) 104 { 105 } 106 static inline void kmemleak_no_scan(const void *ptr) 107 { 108 } 109 110 #endif /* CONFIG_DEBUG_KMEMLEAK */ 111 112 #endif /* __KMEMLEAK_H */ 113