include/trace/kmemtrace.h

   1 /*
   2  * Copyright (C) 2008 Eduard - Gabriel Munteanu
   3  *
   4  * This file is released under GPL version 2.
   5  */
   6
   7 #ifndef _LINUX_KMEMTRACE_H
   8 #define _LINUX_KMEMTRACE_H
   9
  10 #ifdef __KERNEL__
  11
  12 #include <linux/types.h>
  13 #include <linux/marker.h>
  14
  15 enum kmemtrace_type_id {
  16         KMEMTRACE_TYPE_KMALLOC = 0,     /* kmalloc() or kfree(). */
  17         KMEMTRACE_TYPE_CACHE,           /* kmem_cache_*(). */
  18         KMEMTRACE_TYPE_PAGES,           /* __get_free_pages() and friends. */
  19 };
  20
  21 #ifdef CONFIG_KMEMTRACE
  22
  23 extern void kmemtrace_init(void);
  24
  25 extern void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
  26                                              unsigned long call_site,
  27                                              const void *ptr,
  28                                              size_t bytes_req,
  29                                              size_t bytes_alloc,
  30                                              gfp_t gfp_flags,
  31                                              int node);
  32
  33 extern void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
  34                                        unsigned long call_site,
  35                                        const void *ptr);
  36
  37 #else /* CONFIG_KMEMTRACE */
  38
  39 static inline void kmemtrace_init(void)
  40 {
  41 }
  42
  43 static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
  44                                              unsigned long call_site,
  45                                              const void *ptr,
  46                                              size_t bytes_req,
  47                                              size_t bytes_alloc,
  48                                              gfp_t gfp_flags,
  49                                              int node)
  50 {
  51 }
  52
  53 static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
  54                                        unsigned long call_site,
  55                                        const void *ptr)
  56 {
  57 }
  58
  59 #endif /* CONFIG_KMEMTRACE */
  60
  61 static inline void kmemtrace_mark_alloc(enum kmemtrace_type_id type_id,
  62                                         unsigned long call_site,
  63                                         const void *ptr,
  64                                         size_t bytes_req,
  65                                         size_t bytes_alloc,
  66                                         gfp_t gfp_flags)
  67 {
  68         kmemtrace_mark_alloc_node(type_id, call_site, ptr,
  69                                   bytes_req, bytes_alloc, gfp_flags, -1);
  70 }
  71
  72 #endif /* __KERNEL__ */
  73
  74 #endif /* _LINUX_KMEMTRACE_H */
  75