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Signed-off-by: Robert Richter <[email protected]>
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Robert Richter
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Oct 15, 2008
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Original file line number | Diff line number | Diff line change |
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@@ -19,7 +19,7 @@ | |
#include "cpu_buffer.h" | ||
#include "buffer_sync.h" | ||
#include "oprofile_stats.h" | ||
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struct oprofile_operations oprofile_ops; | ||
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unsigned long oprofile_started; | ||
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@@ -36,18 +36,18 @@ static int timer = 0; | |
int oprofile_setup(void) | ||
{ | ||
int err; | ||
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mutex_lock(&start_mutex); | ||
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if ((err = alloc_cpu_buffers())) | ||
goto out; | ||
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if ((err = alloc_event_buffer())) | ||
goto out1; | ||
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if (oprofile_ops.setup && (err = oprofile_ops.setup())) | ||
goto out2; | ||
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/* Note even though this starts part of the | ||
* profiling overhead, it's necessary to prevent | ||
* us missing task deaths and eventually oopsing | ||
|
@@ -74,7 +74,7 @@ int oprofile_setup(void) | |
is_setup = 1; | ||
mutex_unlock(&start_mutex); | ||
return 0; | ||
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out3: | ||
if (oprofile_ops.shutdown) | ||
oprofile_ops.shutdown(); | ||
|
@@ -92,17 +92,17 @@ int oprofile_setup(void) | |
int oprofile_start(void) | ||
{ | ||
int err = -EINVAL; | ||
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mutex_lock(&start_mutex); | ||
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if (!is_setup) | ||
goto out; | ||
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err = 0; | ||
err = 0; | ||
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if (oprofile_started) | ||
goto out; | ||
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oprofile_reset_stats(); | ||
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if ((err = oprofile_ops.start())) | ||
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@@ -114,7 +114,7 @@ int oprofile_start(void) | |
return err; | ||
} | ||
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/* echo 0>/dev/oprofile/enable */ | ||
void oprofile_stop(void) | ||
{ | ||
|
@@ -204,13 +204,13 @@ static void __exit oprofile_exit(void) | |
oprofile_arch_exit(); | ||
} | ||
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module_init(oprofile_init); | ||
module_exit(oprofile_exit); | ||
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module_param_named(timer, timer, int, 0644); | ||
MODULE_PARM_DESC(timer, "force use of timer interrupt"); | ||
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MODULE_LICENSE("GPL"); | ||
MODULE_AUTHOR("John Levon <[email protected]>"); | ||
MODULE_DESCRIPTION("OProfile system profiler"); |