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ftrace: Have static function trace clear ENABLED flag on unregister

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The ENABLED flag needs to be cleared when a ftrace_ops is unregistered
otherwise it wont be able to be registered again.

This is only for static tracing and does not affect DYNAMIC_FTRACE at
all.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt (Red Hat) 2014-02-19 15:12:18 -05:00 committed by Steven Rostedt
parent e1e232ca6b
commit 1fcc155351
1 changed files with 7 additions and 1 deletions
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8
kernel/trace/ftrace.c
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@ -4463,7 +4463,13 @@ static inline void ftrace_startup_enable(int command) { }
(ops)->flags |= FTRACE_OPS_FL_ENABLED; \
___ret; \
})
# define ftrace_shutdown(ops, command) __unregister_ftrace_function(ops)
# define ftrace_shutdown(ops, command) \
({ \
int ___ret = __unregister_ftrace_function(ops); \
if (!___ret) \
(ops)->flags &= ~FTRACE_OPS_FL_ENABLED; \
___ret; \
})
# define ftrace_startup_sysctl() do { } while (0)
# define ftrace_shutdown_sysctl() do { } while (0)