1 files changed, 85 insertions, 0 deletions

diff --git a/include/linux/kmemtrace.h b/include/linux/kmemtrace.h
new file mode 100644
index 000000000000..2c332010cb4e
--- /dev/null
+++ b/include/linux/kmemtrace.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2008 Eduard - Gabriel Munteanu
+ *
+ * This file is released under GPL version 2.
+ */
+
+#ifndef _LINUX_KMEMTRACE_H
+#define _LINUX_KMEMTRACE_H
+
+#ifdef __KERNEL__
+
+#include <linux/types.h>
+#include <linux/marker.h>
+
+enum kmemtrace_type_id {
+        KMEMTRACE_TYPE_KMALLOC = 0,     /* kmalloc() or kfree(). */
+        KMEMTRACE_TYPE_CACHE,           /* kmem_cache_*(). */
+        KMEMTRACE_TYPE_PAGES,           /* __get_free_pages() and friends. */
+};
+
+#ifdef CONFIG_KMEMTRACE
+
+extern void kmemtrace_init(void);
+
+static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
+                                             unsigned long call_site,
+                                             const void *ptr,
+                                             size_t bytes_req,
+                                             size_t bytes_alloc,
+                                             gfp_t gfp_flags,
+                                             int node)
+{
+        trace_mark(kmemtrace_alloc, "type_id %d call_site %lu ptr %lu "
+                   "bytes_req %lu bytes_alloc %lu gfp_flags %lu node %d",
+                   type_id, call_site, (unsigned long) ptr,
+                   bytes_req, bytes_alloc, (unsigned long) gfp_flags, node);
+}
+
+static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
+                                       unsigned long call_site,
+                                       const void *ptr)
+{
+        trace_mark(kmemtrace_free, "type_id %d call_site %lu ptr %lu",
+                   type_id, call_site, (unsigned long) ptr);
+}
+
+#else /* CONFIG_KMEMTRACE */
+
+static inline void kmemtrace_init(void)
+{
+}
+
+static inline void kmemtrace_mark_alloc_node(enum kmemtrace_type_id type_id,
+                                             unsigned long call_site,
+                                             const void *ptr,
+                                             size_t bytes_req,
+                                             size_t bytes_alloc,
+                                             gfp_t gfp_flags,
+                                             int node)
+{
+}
+
+static inline void kmemtrace_mark_free(enum kmemtrace_type_id type_id,
+                                       unsigned long call_site,
+                                       const void *ptr)
+{
+}
+
+#endif /* CONFIG_KMEMTRACE */
+
+static inline void kmemtrace_mark_alloc(enum kmemtrace_type_id type_id,
+                                        unsigned long call_site,
+                                        const void *ptr,
+                                        size_t bytes_req,
+                                        size_t bytes_alloc,
+                                        gfp_t gfp_flags)
+{
+        kmemtrace_mark_alloc_node(type_id, call_site, ptr,
+                                  bytes_req, bytes_alloc, gfp_flags, -1);
+}
+
+#endif /* __KERNEL__ */
+
+#endif /* _LINUX_KMEMTRACE_H */
+