diff options
author | Américo Wang <xiyou.wangcong@gmail.com> | 2010-05-26 06:57:53 -0400 |
---|---|---|
committer | Frederic Weisbecker <fweisbec@gmail.com> | 2010-06-08 17:31:28 -0400 |
commit | 30dbb20e68e6f7df974b77d2350ebad5eb6f6c9e (patch) | |
tree | b28f8232756e0de57ded858d6584724317b405ef /include | |
parent | b0f82b81fe6bbcf78d478071f33e44554726bc81 (diff) |
tracing: Remove boot tracer
The boot tracer is useless. It simply logs the initcalls
but in fact these initcalls are also logged through printk
while using the initcall_debug kernel parameter.
Nobody seem to be using it so far. Then just remove it.
Signed-off-by: WANG Cong <xiyou.wangcong@gmail.com>
Cc: Chase Douglas <chase.douglas@canonical.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Li Zefan <lizf@cn.fujitsu.com>
LKML-Reference: <20100526105753.GA5677@cr0.nay.redhat.com>
[ remove the hooks in main.c, and the headers ]
Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Diffstat (limited to 'include')
-rw-r--r-- | include/trace/boot.h | 60 |
1 files changed, 0 insertions, 60 deletions
diff --git a/include/trace/boot.h b/include/trace/boot.h deleted file mode 100644 index 088ea089e31d..000000000000 --- a/include/trace/boot.h +++ /dev/null | |||
@@ -1,60 +0,0 @@ | |||
1 | #ifndef _LINUX_TRACE_BOOT_H | ||
2 | #define _LINUX_TRACE_BOOT_H | ||
3 | |||
4 | #include <linux/module.h> | ||
5 | #include <linux/kallsyms.h> | ||
6 | #include <linux/init.h> | ||
7 | |||
8 | /* | ||
9 | * Structure which defines the trace of an initcall | ||
10 | * while it is called. | ||
11 | * You don't have to fill the func field since it is | ||
12 | * only used internally by the tracer. | ||
13 | */ | ||
14 | struct boot_trace_call { | ||
15 | pid_t caller; | ||
16 | char func[KSYM_SYMBOL_LEN]; | ||
17 | }; | ||
18 | |||
19 | /* | ||
20 | * Structure which defines the trace of an initcall | ||
21 | * while it returns. | ||
22 | */ | ||
23 | struct boot_trace_ret { | ||
24 | char func[KSYM_SYMBOL_LEN]; | ||
25 | int result; | ||
26 | unsigned long long duration; /* nsecs */ | ||
27 | }; | ||
28 | |||
29 | #ifdef CONFIG_BOOT_TRACER | ||
30 | /* Append the traces on the ring-buffer */ | ||
31 | extern void trace_boot_call(struct boot_trace_call *bt, initcall_t fn); | ||
32 | extern void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn); | ||
33 | |||
34 | /* Tells the tracer that smp_pre_initcall is finished. | ||
35 | * So we can start the tracing | ||
36 | */ | ||
37 | extern void start_boot_trace(void); | ||
38 | |||
39 | /* Resume the tracing of other necessary events | ||
40 | * such as sched switches | ||
41 | */ | ||
42 | extern void enable_boot_trace(void); | ||
43 | |||
44 | /* Suspend this tracing. Actually, only sched_switches tracing have | ||
45 | * to be suspended. Initcalls doesn't need it.) | ||
46 | */ | ||
47 | extern void disable_boot_trace(void); | ||
48 | #else | ||
49 | static inline | ||
50 | void trace_boot_call(struct boot_trace_call *bt, initcall_t fn) { } | ||
51 | |||
52 | static inline | ||
53 | void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn) { } | ||
54 | |||
55 | static inline void start_boot_trace(void) { } | ||
56 | static inline void enable_boot_trace(void) { } | ||
57 | static inline void disable_boot_trace(void) { } | ||
58 | #endif /* CONFIG_BOOT_TRACER */ | ||
59 | |||
60 | #endif /* __LINUX_TRACE_BOOT_H */ | ||