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authorRobert Richter <robert.richter@amd.com>2009-07-09 14:56:25 +0200
committerRobert Richter <robert.richter@amd.com>2009-07-20 16:43:21 +0200
commit1b294f5960cd89e49eeb3e797860c552b03f2272 (patch)
tree2582a7f6d56c2f34ff956d24eda97b18720aa0ce
parent4d015f79e972cea1761cfee8872b1c0992ccd8b2 (diff)
downloadop-kernel-dev-1b294f5960cd89e49eeb3e797860c552b03f2272.zip
op-kernel-dev-1b294f5960cd89e49eeb3e797860c552b03f2272.tar.gz
oprofile: Adding switch counter to oprofile statistic variables
This patch moves the multiplexing switch counter from x86 code to common oprofile statistic variables. Now the value will be available and usable for all architectures. The initialization and incrementation also moved to common code. Signed-off-by: Robert Richter <robert.richter@amd.com>
-rw-r--r--arch/x86/oprofile/nmi_int.c7
-rw-r--r--drivers/oprofile/oprof.c7
-rw-r--r--drivers/oprofile/oprofile_stats.c9
-rw-r--r--drivers/oprofile/oprofile_stats.h1
4 files changed, 8 insertions, 16 deletions
diff --git a/arch/x86/oprofile/nmi_int.c b/arch/x86/oprofile/nmi_int.c
index da6d2ab..7b3362f 100644
--- a/arch/x86/oprofile/nmi_int.c
+++ b/arch/x86/oprofile/nmi_int.c
@@ -34,11 +34,6 @@ static DEFINE_PER_CPU(unsigned long, saved_lvtpc);
/* 0 == registered but off, 1 == registered and on */
static int nmi_enabled = 0;
-
-#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
-extern atomic_t multiplex_counter;
-#endif
-
struct op_counter_config counter_config[OP_MAX_COUNTER];
/* common functions */
@@ -253,8 +248,6 @@ static int nmi_switch_event(void)
on_each_cpu(nmi_cpu_switch, NULL, 1);
- atomic_inc(&multiplex_counter);
-
return 0;
}
diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index a48294a..dc8a042 100644
--- a/drivers/oprofile/oprof.c
+++ b/drivers/oprofile/oprof.c
@@ -107,8 +107,11 @@ static void stop_switch_worker(void)
static void switch_worker(struct work_struct *work)
{
- if (!oprofile_ops.switch_events())
- start_switch_worker();
+ if (oprofile_ops.switch_events())
+ return;
+
+ atomic_inc(&oprofile_stats.multiplex_counter);
+ start_switch_worker();
}
/* User inputs in ms, converts to jiffies */
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
index 77a57a6..61689e8 100644
--- a/drivers/oprofile/oprofile_stats.c
+++ b/drivers/oprofile/oprofile_stats.c
@@ -16,9 +16,6 @@
#include "cpu_buffer.h"
struct oprofile_stat_struct oprofile_stats;
-#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
-atomic_t multiplex_counter;
-#endif
void oprofile_reset_stats(void)
{
@@ -37,9 +34,7 @@ void oprofile_reset_stats(void)
atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
atomic_set(&oprofile_stats.event_lost_overflow, 0);
atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
-#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
- atomic_set(&multiplex_counter, 0);
-#endif
+ atomic_set(&oprofile_stats.multiplex_counter, 0);
}
@@ -84,6 +79,6 @@ void oprofile_create_stats_files(struct super_block *sb, struct dentry *root)
&oprofile_stats.bt_lost_no_mapping);
#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
oprofilefs_create_ro_atomic(sb, dir, "multiplex_counter",
- &multiplex_counter);
+ &oprofile_stats.multiplex_counter);
#endif
}
diff --git a/drivers/oprofile/oprofile_stats.h b/drivers/oprofile/oprofile_stats.h
index 3da0d08..0b54e46 100644
--- a/drivers/oprofile/oprofile_stats.h
+++ b/drivers/oprofile/oprofile_stats.h
@@ -17,6 +17,7 @@ struct oprofile_stat_struct {
atomic_t sample_lost_no_mapping;
atomic_t bt_lost_no_mapping;
atomic_t event_lost_overflow;
+ atomic_t multiplex_counter;
};
extern struct oprofile_stat_struct oprofile_stats;
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