From 6c6bd754bf43d59756f094de144ecac239629dda Mon Sep 17 00:00:00 2001
From: Brian Rogan <bcr6@cornell.edu>
Date: Mon, 27 Mar 2006 11:57:01 +1100
Subject: [PATCH] powerpc: Add oprofile calltrace support

Add oprofile calltrace support to powerpc. Disable spinlock backtracing
now we can use calltrace info.

(Updated to work on both 32bit and 64bit by me).

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
---
 arch/powerpc/oprofile/common.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

(limited to 'arch/powerpc/oprofile/common.c')

diff --git a/arch/powerpc/oprofile/common.c b/arch/powerpc/oprofile/common.c
index cc2535be3a73..2b9143b0f6ba 100644
--- a/arch/powerpc/oprofile/common.c
+++ b/arch/powerpc/oprofile/common.c
@@ -126,8 +126,7 @@ static int op_powerpc_create_files(struct super_block *sb, struct dentry *root)
 	sys.enable_kernel = 1;
 	sys.enable_user = 1;
 #ifdef CONFIG_PPC64
-	/* Turn on backtracing through spinlocks by default */
-	sys.backtrace_spinlocks = 1;
+	sys.backtrace_spinlocks = 0;
 #endif
 
 	return 0;
@@ -168,6 +167,7 @@ int __init oprofile_arch_init(struct oprofile_operations *ops)
 	ops->shutdown = op_powerpc_shutdown;
 	ops->start = op_powerpc_start;
 	ops->stop = op_powerpc_stop;
+	ops->backtrace = op_powerpc_backtrace;
 
 	printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
 	       ops->cpu_type);
-- 
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