From faf35813f204901f85dd0c6b3c5092e0064c6c2f Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 16 Jun 2010 16:58:34 +0200
Subject: [PATCH] timer_stats: Convert table_lock to raw_spin_lock

commit faf35813f204901f85dd0c6b3c5092e0064c6c2f in tip.

table_lock is taken in atomic contexts and therefor cannot be
converted to a sleeping spinlock on rt. Make it raw.

Reported-by: Andreas Sundebo <kernel@sundebo.dk>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Andreas Sundebo <kernel@sundebo.dk>

diff --git a/kernel/time/timer_stats.c b/kernel/time/timer_stats.c
index 2f3b585..30cb955 100644
--- a/kernel/time/timer_stats.c
+++ b/kernel/time/timer_stats.c
@@ -81,7 +81,7 @@ struct entry {
 /*
  * Spinlock protecting the tables - not taken during lookup:
  */
-static DEFINE_SPINLOCK(table_lock);
+static DEFINE_RAW_SPINLOCK(table_lock);
 
 /*
  * Per-CPU lookup locks for fast hash lookup:
@@ -188,7 +188,7 @@ static struct entry *tstat_lookup(struct entry *entry, char *comm)
 	prev = NULL;
 	curr = *head;
 
-	spin_lock(&table_lock);
+	raw_spin_lock(&table_lock);
 	/*
 	 * Make sure we have not raced with another CPU:
 	 */
@@ -215,7 +215,7 @@ static struct entry *tstat_lookup(struct entry *entry, char *comm)
 			*head = curr;
 	}
  out_unlock:
-	spin_unlock(&table_lock);
+	raw_spin_unlock(&table_lock);
 
 	return curr;
 }
-- 
1.7.1.1