From: Urs Thuermann <urs@isnogud.escape.de>
To: linux-kernel@vger.kernel.org
Subject: [PATCH] RCU Documentation
Date: 04 Jul 2006 17:22:22 +0200 [thread overview]
Message-ID: <m2sllh8kep.fsf@janus.isnogud.escape.de> (raw)
Updater should use _rcu variant of list_del().
urs
Signed-off-by: Urs Thuermann <urs@isnogud.escape.de>
--- linux-2.6.17/Documentation/RCU/whatisRCU.txt.orig
+++ linux-2.6.17/Documentation/RCU/whatisRCU.txt
@@ -677,8 +677,9 @@
+ spin_lock(&listmutex);
list_for_each_entry(p, head, lp) {
if (p->key == key) {
- list_del(&p->list);
+ - list_del(&p->list);
- write_unlock(&listmutex);
+ + list_del_rcu(&p->list);
+ spin_unlock(&listmutex);
+ synchronize_rcu();
kfree(p);
@@ -726,7 +727,7 @@
5 write_lock(&listmutex); 5 spin_lock(&listmutex);
6 list_for_each_entry(p, head, lp) { 6 list_for_each_entry(p, head, lp) {
7 if (p->key == key) { 7 if (p->key == key) {
- 8 list_del(&p->list); 8 list_del(&p->list);
+ 8 list_del(&p->list); 8 list_del_rcu(&p->list);
9 write_unlock(&listmutex); 9 spin_unlock(&listmutex);
10 synchronize_rcu();
10 kfree(p); 11 kfree(p);
next reply other threads:[~2006-07-04 15:25 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-07-04 15:22 Urs Thuermann [this message]
2006-07-05 6:12 ` Paul E. McKenney
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