X-Git-Url: http://pilppa.org/gitweb/?a=blobdiff_plain;f=kernel%2Fdelayacct.c;h=36752f124c6a1897809edd3788a6ed88a3072ba8;hb=9b4f2e9576658c4e52d95dc8d309f51b2e2db096;hp=57ca3730205d75f0734ac7ad418d85cced3025ef;hpb=a205729e2cd8e51257cd0ea738524c64da99b9e0;p=linux-2.6-omap-h63xx.git

diff --git a/kernel/delayacct.c b/kernel/delayacct.c
index 57ca3730205..36752f124c6 100644
--- a/kernel/delayacct.c
+++ b/kernel/delayacct.c
@@ -41,24 +41,11 @@ void delayacct_init(void)
 
 void __delayacct_tsk_init(struct task_struct *tsk)
 {
-	spin_lock_init(&tsk->delays_lock);
-	/* No need to acquire tsk->delays_lock for allocation here unless
-	   __delayacct_tsk_init called after tsk is attached to tasklist
-	*/
 	tsk->delays = kmem_cache_zalloc(delayacct_cache, SLAB_KERNEL);
 	if (tsk->delays)
 		spin_lock_init(&tsk->delays->lock);
 }
 
-void __delayacct_tsk_exit(struct task_struct *tsk)
-{
-	struct task_delay_info *delays = tsk->delays;
-	spin_lock(&tsk->delays_lock);
-	tsk->delays = NULL;
-	spin_unlock(&tsk->delays_lock);
-	kmem_cache_free(delayacct_cache, delays);
-}
-
 /*
  * Start accounting for a delay statistic using
  * its starting timestamp (@start)
@@ -118,8 +105,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 	struct timespec ts;
 	unsigned long t1,t2,t3;
 
-	spin_lock(&tsk->delays_lock);
-
 	/* Though tsk->delays accessed later, early exit avoids
 	 * unnecessary returning of other data
 	 */
@@ -161,7 +146,6 @@ int __delayacct_add_tsk(struct taskstats *d, struct task_struct *tsk)
 	spin_unlock(&tsk->delays->lock);
 
 done:
-	spin_unlock(&tsk->delays_lock);
 	return 0;
 }