drivers: Remove CONFIG_OPROFILE support

The "oprofile" user-space tools don't use the kernel OPROFILE support
any more, and haven't in a long time. User-space has been converted to
the perf interfaces.

Remove kernel's old oprofile support.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Suggested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Acked-by: Robert Richter <rric@kernel.org>
Acked-by: Paul E. McKenney <paulmck@kernel.org> #RCU
Acked-by: William Cohen <wcohen@redhat.com>
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Acked-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 0 insertions, 84 deletions

diff --git a/drivers/oprofile/oprofile_stats.c b/drivers/oprofile/oprofile_stats.c
deleted file mode 100644
index 59659cea4582..000000000000
--- a/drivers/oprofile/oprofile_stats.c
+++ /dev/null
@@ -1,84 +0,0 @@
-/**
- * @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_possible_cpu(i) {
-		cpu_buf = &per_cpu(op_cpu_buffer, i);
-		cpu_buf->sample_received = 0;
-		cpu_buf->sample_lost_overflow = 0;
-		cpu_buf->backtrace_aborted = 0;
-		cpu_buf->sample_invalid_eip = 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);
-	atomic_set(&oprofile_stats.bt_lost_no_mapping, 0);
-	atomic_set(&oprofile_stats.multiplex_counter, 0);
-}
-
-
-void oprofile_create_stats_files(struct dentry *root)
-{
-	struct oprofile_cpu_buffer *cpu_buf;
-	struct dentry *cpudir;
-	struct dentry *dir;
-	char buf[10];
-	int i;
-
-	dir = oprofilefs_mkdir(root, "stats");
-	if (!dir)
-		return;
-
-	for_each_possible_cpu(i) {
-		cpu_buf = &per_cpu(op_cpu_buffer, i);
-		snprintf(buf, 10, "cpu%d", i);
-		cpudir = oprofilefs_mkdir(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(cpudir, "sample_received",
-			&cpu_buf->sample_received);
-		oprofilefs_create_ro_ulong(cpudir, "sample_lost_overflow",
-			&cpu_buf->sample_lost_overflow);
-		oprofilefs_create_ro_ulong(cpudir, "backtrace_aborted",
-			&cpu_buf->backtrace_aborted);
-		oprofilefs_create_ro_ulong(cpudir, "sample_invalid_eip",
-			&cpu_buf->sample_invalid_eip);
-	}
-
-	oprofilefs_create_ro_atomic(dir, "sample_lost_no_mm",
-		&oprofile_stats.sample_lost_no_mm);
-	oprofilefs_create_ro_atomic(dir, "sample_lost_no_mapping",
-		&oprofile_stats.sample_lost_no_mapping);
-	oprofilefs_create_ro_atomic(dir, "event_lost_overflow",
-		&oprofile_stats.event_lost_overflow);
-	oprofilefs_create_ro_atomic(dir, "bt_lost_no_mapping",
-		&oprofile_stats.bt_lost_no_mapping);
-#ifdef CONFIG_OPROFILE_EVENT_MULTIPLEX
-	oprofilefs_create_ro_atomic(dir, "multiplex_counter",
-		&oprofile_stats.multiplex_counter);
-#endif
-}