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ftrace: Move setting of clock-source out of options

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There are many clock sources for the tracing system but we can only
enable/disable one at a time with the trace/options file.
We can move the setting of clock-source out of options and add a separate
file for it:
 # cat trace_clock
 [local] global
 # echo global > trace_clock
 # cat trace_clock
 local [global]

Signed-off-by: Zhao Lei <zhaolei@cn.fujitsu.com>
LKML-Reference: <4A939D08.6050604@cn.fujitsu.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Zhaolei
2009-08-25 16:12:56 +08:00
committed by Steven Rostedt
parent 87a342f5db
commit 5079f3261f
2 changed files with 79 additions and 20 deletions
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7
kernel/trace/trace.h
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@@ -568,6 +568,8 @@ trace_vprintk(unsigned long ip, const char *fmt, va_list args);
extern unsigned long trace_flags;
extern int trace_clock_id;
/* Standard output formatting function used for function return traces */
#ifdef CONFIG_FUNCTION_GRAPH_TRACER
extern enum print_line_t print_graph_function(struct trace_iterator *iter);
@@ -656,9 +658,8 @@ enum trace_iterator_flags {
TRACE_ITER_PRINTK_MSGONLY = 0x10000,
TRACE_ITER_CONTEXT_INFO = 0x20000, /* Print pid/cpu/time */
TRACE_ITER_LATENCY_FMT = 0x40000,
TRACE_ITER_GLOBAL_CLK = 0x80000,
TRACE_ITER_SLEEP_TIME = 0x100000,
TRACE_ITER_GRAPH_TIME = 0x200000,
TRACE_ITER_SLEEP_TIME = 0x80000,
TRACE_ITER_GRAPH_TIME = 0x100000,
};
/*