| 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 */ |