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-rw-r--r--include/linux/alloc_tag.h12
-rw-r--r--include/linux/codetag.h5
2 files changed, 16 insertions, 1 deletions
diff --git a/include/linux/alloc_tag.h b/include/linux/alloc_tag.h
index 9ef2633e2c08..d40ac39bfbe8 100644
--- a/include/linux/alloc_tag.h
+++ b/include/linux/alloc_tag.h
@@ -221,6 +221,16 @@ static inline void alloc_tag_sub(union codetag_ref *ref, size_t bytes)
ref->ct = NULL;
}
+static inline void alloc_tag_set_inaccurate(struct alloc_tag *tag)
+{
+ tag->ct.flags |= CODETAG_FLAG_INACCURATE;
+}
+
+static inline bool alloc_tag_is_inaccurate(struct alloc_tag *tag)
+{
+ return !!(tag->ct.flags & CODETAG_FLAG_INACCURATE);
+}
+
#define alloc_tag_record(p) ((p) = current->alloc_tag)
#else /* CONFIG_MEM_ALLOC_PROFILING */
@@ -230,6 +240,8 @@ static inline bool mem_alloc_profiling_enabled(void) { return false; }
static inline void alloc_tag_add(union codetag_ref *ref, struct alloc_tag *tag,
size_t bytes) {}
static inline void alloc_tag_sub(union codetag_ref *ref, size_t bytes) {}
+static inline void alloc_tag_set_inaccurate(struct alloc_tag *tag) {}
+static inline bool alloc_tag_is_inaccurate(struct alloc_tag *tag) { return false; }
#define alloc_tag_record(p) do {} while (0)
#endif /* CONFIG_MEM_ALLOC_PROFILING */
diff --git a/include/linux/codetag.h b/include/linux/codetag.h
index 457ed8fd3214..8ea2a5f7c98a 100644
--- a/include/linux/codetag.h
+++ b/include/linux/codetag.h
@@ -16,13 +16,16 @@ struct module;
#define CODETAG_SECTION_START_PREFIX "__start_"
#define CODETAG_SECTION_STOP_PREFIX "__stop_"
+/* codetag flags */
+#define CODETAG_FLAG_INACCURATE (1 << 0)
+
/*
* An instance of this structure is created in a special ELF section at every
* code location being tagged. At runtime, the special section is treated as
* an array of these.
*/
struct codetag {
- unsigned int flags; /* used in later patches */
+ unsigned int flags;
unsigned int lineno;
const char *modname;
const char *function;