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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 /drivers/oprofile
parent4d015f79e972cea1761cfee8872b1c0992ccd8b2 (diff)
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>
Diffstat (limited to 'drivers/oprofile')
-rw-r--r--drivers/oprofile/oprof.c7
-rw-r--r--drivers/oprofile/oprofile_stats.c9
-rw-r--r--drivers/oprofile/oprofile_stats.h1
3 files changed, 8 insertions, 9 deletions
diff --git a/drivers/oprofile/oprof.c b/drivers/oprofile/oprof.c
index a48294a8ebe8..dc8a0428260d 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 77a57a6792f6..61689e814d46 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 3da0d08dc1f9..0b54e46c3c14 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;