ftrace: remove ftrace hash

The ftrace hash was used by the ftrace_daemon code. The record ip function
would place the calling address (ip) into the hash. The daemon would later
read the hash and modify that code.

The hash complicates the code. This patch removes it.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

1 files changed, 3 insertions, 5 deletions

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 1c4835f86911..703eb53cfa2b 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -44,8 +44,6 @@ static inline void ftrace_kill(void) { }
 #endif /* CONFIG_FUNCTION_TRACER */
 
 #ifdef CONFIG_DYNAMIC_FTRACE
-# define FTRACE_HASHBITS        10
-# define FTRACE_HASHSIZE        (1<<FTRACE_HASHBITS)
 
 enum {
         FTRACE_FL_FREE          = (1 << 0),
@@ -58,9 +56,9 @@ enum {
 };
 
 struct dyn_ftrace {
-        struct hlist_node node;
-        unsigned long     ip; /* address of mcount call-site */
-        unsigned long     flags;
+        struct list_head        list;
+        unsigned long           ip; /* address of mcount call-site */
+        unsigned long           flags;
 };
 
 int ftrace_force_update(void);