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) __ref; 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) __ref; 32 extern void kmemleak_free(const void *ptr) __ref; 33 extern void kmemleak_free_part(const void *ptr, size_t size) __ref; 34 extern void kmemleak_free_percpu(const void __percpu *ptr) __ref; 35 extern void kmemleak_update_trace(const void *ptr) __ref; 36 extern void kmemleak_not_leak(const void *ptr) __ref; 37 extern void kmemleak_ignore(const void *ptr) __ref; 38 extern void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) __ref; 39 extern void kmemleak_no_scan(const void *ptr) __ref; 40 41 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, 42 int min_count, unsigned long flags, 43 gfp_t gfp) 44 { 45 if (!(flags & SLAB_NOLEAKTRACE)) 46 kmemleak_alloc(ptr, size, min_count, gfp); 47 } 48 49 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags) 50 { 51 if (!(flags & SLAB_NOLEAKTRACE)) 52 kmemleak_free(ptr); 53 } 54 55 static inline void kmemleak_erase(void **ptr) 56 { 57 *ptr = NULL; 58 } 59 60 #else 61 62 static inline void kmemleak_init(void) 63 { 64 } 65 static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count, 66 gfp_t gfp) 67 { 68 } 69 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, 70 int min_count, unsigned long flags, 71 gfp_t gfp) 72 { 73 } 74 static inline void kmemleak_alloc_percpu(const void __percpu *ptr, size_t size) 75 { 76 } 77 static inline void kmemleak_free(const void *ptr) 78 { 79 } 80 static inline void kmemleak_free_part(const void *ptr, size_t size) 81 { 82 } 83 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags) 84 { 85 } 86 static inline void kmemleak_free_percpu(const void __percpu *ptr) 87 { 88 } 89 static inline void kmemleak_update_trace(const void *ptr) 90 { 91 } 92 static inline void kmemleak_not_leak(const void *ptr) 93 { 94 } 95 static inline void kmemleak_ignore(const void *ptr) 96 { 97 } 98 static inline void kmemleak_scan_area(const void *ptr, size_t size, gfp_t gfp) 99 { 100 } 101 static inline void kmemleak_erase(void **ptr) 102 { 103 } 104 static inline void kmemleak_no_scan(const void *ptr) 105 { 106 } 107 108 #endif /* CONFIG_DEBUG_KMEMLEAK */ 109 110 #endif /* __KMEMLEAK_H */ 111