ftrace: Remove ftrace_regex_lseek()

[~andy/linux] / include / linux / ftrace.h

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index f83e17a40e8b848185b649836274b57acdc332c1..e48ed1d7876d9610d8eabbed1556b893678fd143 100644 (file)
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -90,6 +90,8 @@ typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip,
  *            not set this, then the ftrace infrastructure will add recursion
  *            protection for the caller.
  * STUB   - The ftrace_ops is just a place holder.
+ * INITIALIZED - The ftrace_ops has already been initialized (first use time
+ *            register_ftrace_function() is called, it will initialized the ops)
  */
 enum {
        FTRACE_OPS_FL_ENABLED                   = 1 << 0,
@@ -100,6 +102,7 @@ enum {
        FTRACE_OPS_FL_SAVE_REGS_IF_SUPPORTED    = 1 << 5,
        FTRACE_OPS_FL_RECURSION_SAFE            = 1 << 6,
        FTRACE_OPS_FL_STUB                      = 1 << 7,
+       FTRACE_OPS_FL_INITIALIZED               = 1 << 8,
 };
 
 struct ftrace_ops {
@@ -110,6 +113,7 @@ struct ftrace_ops {
 #ifdef CONFIG_DYNAMIC_FTRACE
        struct ftrace_hash              *notrace_hash;
        struct ftrace_hash              *filter_hash;
+       struct mutex                    regex_lock;
 #endif
 };
 
@@ -562,10 +566,6 @@ static inline ssize_t ftrace_filter_write(struct file *file, const char __user *
                            size_t cnt, loff_t *ppos) { return -ENODEV; }
 static inline ssize_t ftrace_notrace_write(struct file *file, const char __user *ubuf,
                             size_t cnt, loff_t *ppos) { return -ENODEV; }
-static inline loff_t ftrace_regex_lseek(struct file *file, loff_t offset, int whence)
-{
-       return -ENODEV;
-}
 static inline int
 ftrace_regex_release(struct inode *inode, struct file *file) { return -ENODEV; }
 #endif /* CONFIG_DYNAMIC_FTRACE */