From: Alex Thorlton <athorlton@sgi.com>
Date: Wed, 19 Jun 2013 00:07:08 +0000 (+1000)
Subject: panic: add cpu/pid to warn_slowpath_common in WARNING printk()s
X-Git-Tag: next-20130619~2^2~315
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=525a33a24475ebf16a85ef420de35307aeb7634c;p=karo-tx-linux.git

panic: add cpu/pid to warn_slowpath_common in WARNING printk()s

Add the cpu/pid that called WARN() so that the stack traces can be matched
up with the WARNING messages.

Signed-off-by: Alex Thorlton <athorlton@sgi.com>
Reviewed-by: Robin Holt <holt@sgi.com>
Cc: Stephen Boyd <sboyd@codeaurora.org>
Cc: Vikram Mulukutla <markivx@codeaurora.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Tejun Heo <tj@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/kernel/panic.c b/kernel/panic.c
index 167ec097ce8b..aaa0b7c7f51b 100644
--- a/kernel/panic.c
+++ b/kernel/panic.c
@@ -399,8 +399,9 @@ struct slowpath_args {
 static void warn_slowpath_common(const char *file, int line, void *caller,
 				 unsigned taint, struct slowpath_args *args)
 {
-	printk(KERN_WARNING "------------[ cut here ]------------\n");
-	printk(KERN_WARNING "WARNING: at %s:%d %pS()\n", file, line, caller);
+	pr_warn("------------[ cut here ]------------\n");
+	pr_warn("WARNING: CPU: %d PID: %d at %s:%d %pS()\n",  '
+		raw_smp_processor_id(), current->pid, file, line, caller);
 
 	if (args)
 		vprintk(args->fmt, args->args);