Linux-2.6.12-rc2
Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
new file mode 100644
index 0000000..e94b1e4
--- /dev/null
+++ b/drivers/oprofile/oprofile_stats.c
@@ -0,0 +1,74 @@
+/**
+ * @file oprofile_stats.c
+ *
+ * @remark Copyright 2002 OProfile authors
+ * @remark Read the file COPYING
+ *
+ * @author John Levon
+ */
+
+#include <linux/oprofile.h>
+#include <linux/smp.h>
+#include <linux/cpumask.h>
+#include <linux/threads.h>
+
+#include "oprofile_stats.h"
+#include "cpu_buffer.h"
+
+struct oprofile_stat_struct oprofile_stats;
+
+void oprofile_reset_stats(void)
+{
+ struct oprofile_cpu_buffer * cpu_buf;
+ int i;
+
+ for_each_cpu(i) {
+ cpu_buf = &cpu_buffer[i];
+ cpu_buf->sample_received = 0;
+ cpu_buf->sample_lost_overflow = 0;
+ }
+
+ atomic_set(&oprofile_stats.sample_lost_no_mm, 0);
+ atomic_set(&oprofile_stats.sample_lost_no_mapping, 0);
+ atomic_set(&oprofile_stats.event_lost_overflow, 0);
+}
+
+
+void oprofile_create_stats_files(struct super_block * sb, struct dentry * root)
+{
+ struct oprofile_cpu_buffer * cpu_buf;
+ struct dentry * cpudir;
+ struct dentry * dir;
+ char buf[10];
+ int i;
+
+ dir = oprofilefs_mkdir(sb, root, "stats");
+ if (!dir)
+ return;
+
+ for_each_cpu(i) {
+ cpu_buf = &cpu_buffer[i];
+ snprintf(buf, 10, "cpu%d", i);
+ cpudir = oprofilefs_mkdir(sb, dir, buf);
+
+ /* Strictly speaking access to these ulongs is racy,
+ * but we can't simply lock them, and they are
+ * informational only.
+ */
+ oprofilefs_create_ro_ulong(sb, cpudir, "sample_received",
+ &cpu_buf->sample_received);
+ oprofilefs_create_ro_ulong(sb, cpudir, "sample_lost_overflow",
+ &cpu_buf->sample_lost_overflow);
+ oprofilefs_create_ro_ulong(sb, cpudir, "backtrace_aborted",
+ &cpu_buf->backtrace_aborted);
+ }
+
+ oprofilefs_create_ro_atomic(sb, dir, "sample_lost_no_mm",
+ &oprofile_stats.sample_lost_no_mm);
+ oprofilefs_create_ro_atomic(sb, dir, "sample_lost_no_mapping",
+ &oprofile_stats.sample_lost_no_mapping);
+ oprofilefs_create_ro_atomic(sb, dir, "event_lost_overflow",
+ &oprofile_stats.event_lost_overflow);
+ oprofilefs_create_ro_atomic(sb, dir, "bt_lost_no_mapping",
+ &oprofile_stats.bt_lost_no_mapping);
+}
