ftrace: Add infrastructure for delayed enabling of module functions

[cascardo/linux.git] / include / linux / ftrace.h

diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 4736a82..660e7c6 100644 (file)
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -357,6 +357,7 @@ bool is_ftrace_trampoline(unsigned long addr);
  *  REGS    - the record wants the function to save regs
  *  REGS_EN - the function is set up to save regs.
  *  IPMODIFY - the record allows for the IP address to be changed.
+ *  DISABLED - the record is not ready to be touched yet
  *
  * When a new ftrace_ops is registered and wants a function to save
  * pt_regs, the rec->flag REGS is set. When the function has been
@@ -371,10 +372,11 @@ enum {
        FTRACE_FL_TRAMP         = (1UL << 28),
        FTRACE_FL_TRAMP_EN      = (1UL << 27),
        FTRACE_FL_IPMODIFY      = (1UL << 26),
+       FTRACE_FL_DISABLED      = (1UL << 25),
 };
 
-#define FTRACE_REF_MAX_SHIFT   26
-#define FTRACE_FL_BITS         6
+#define FTRACE_REF_MAX_SHIFT   25
+#define FTRACE_FL_BITS         7
 #define FTRACE_FL_MASKED_BITS  ((1UL << FTRACE_FL_BITS) - 1)
 #define FTRACE_FL_MASK         (FTRACE_FL_MASKED_BITS << FTRACE_REF_MAX_SHIFT)
 #define FTRACE_REF_MAX         ((1UL << FTRACE_REF_MAX_SHIFT) - 1)