1 /* 2 * include/linux/kmemleak.h 3 * 4 * Copyright (C) 2008 ARM Limited 5 * Written by Catalin Marinas <[email protected]> 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 #ifdef CONFIG_DEBUG_KMEMLEAK 25 26 extern void kmemleak_init(void) __ref; 27 extern void kmemleak_alloc(const void *ptr, size_t size, int min_count, 28 gfp_t gfp) __ref; 29 extern void kmemleak_free(const void *ptr) __ref; 30 extern void kmemleak_free_part(const void *ptr, size_t size) __ref; 31 extern void kmemleak_padding(const void *ptr, unsigned long offset, 32 size_t size) __ref; 33 extern void kmemleak_not_leak(const void *ptr) __ref; 34 extern void kmemleak_ignore(const void *ptr) __ref; 35 extern void kmemleak_scan_area(const void *ptr, unsigned long offset, 36 size_t length, gfp_t gfp) __ref; 37 extern void kmemleak_no_scan(const void *ptr) __ref; 38 39 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, 40 int min_count, unsigned long flags, 41 gfp_t gfp) 42 { 43 if (!(flags & SLAB_NOLEAKTRACE)) 44 kmemleak_alloc(ptr, size, min_count, gfp); 45 } 46 47 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags) 48 { 49 if (!(flags & SLAB_NOLEAKTRACE)) 50 kmemleak_free(ptr); 51 } 52 53 static inline void kmemleak_erase(void **ptr) 54 { 55 *ptr = NULL; 56 } 57 58 #else 59 60 static inline void kmemleak_init(void) 61 { 62 } 63 static inline void kmemleak_alloc(const void *ptr, size_t size, int min_count, 64 gfp_t gfp) 65 { 66 } 67 static inline void kmemleak_alloc_recursive(const void *ptr, size_t size, 68 int min_count, unsigned long flags, 69 gfp_t gfp) 70 { 71 } 72 static inline void kmemleak_free(const void *ptr) 73 { 74 } 75 static inline void kmemleak_free_part(const void *ptr, size_t size) 76 { 77 } 78 static inline void kmemleak_free_recursive(const void *ptr, unsigned long flags) 79 { 80 } 81 static inline void kmemleak_not_leak(const void *ptr) 82 { 83 } 84 static inline void kmemleak_ignore(const void *ptr) 85 { 86 } 87 static inline void kmemleak_scan_area(const void *ptr, unsigned long offset, 88 size_t length, gfp_t gfp) 89 { 90 } 91 static inline void kmemleak_erase(void **ptr) 92 { 93 } 94 static inline void kmemleak_no_scan(const void *ptr) 95 { 96 } 97 98 #endif /* CONFIG_DEBUG_KMEMLEAK */ 99 100 #endif /* __KMEMLEAK_H */ 101