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ftrace: Create a global_ops to hold the filter and notrace hashes

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Combine the filter and notrace hashes to be accessed by a single entity,
the global_ops. The global_ops is a ftrace_ops structure that is passed
to different functions that can read or modify the filtering of the
function tracer.

The ftrace_ops structure was modified to hold a filter and notrace
hashes so that later patches may allow each ftrace_ops to have its own
set of rules to what functions may be filtered.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Steven Rostedt 2011-05-02 12:29:25 -04:00 • committed by Steven Rostedt
commit f45948e898
2 changed files with 54 additions and 21 deletions
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10
include/linux/ftrace.h
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@ -29,9 +29,15 @@ ftrace_enable_sysctl(struct ctl_table *table, int write,
typedef void (*ftrace_func_t)(unsigned long ip, unsigned long parent_ip);
struct ftrace_hash;
struct ftrace_ops {
ftrace_func_t func;
struct ftrace_ops *next;
ftrace_func_t func;
struct ftrace_ops *next;
#ifdef CONFIG_DYNAMIC_FTRACE
struct ftrace_hash *notrace_hash;
struct ftrace_hash *filter_hash;
#endif
};
extern int function_trace_stop;