linux-kernel - [PATCH 06/30] netns: don't get/put old netns on CLONE

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <20090410023431.GG27788@x200.localdomain>
Date:	Fri, 10 Apr 2009 06:34:31 +0400
From:	Alexey Dobriyan <adobriyan@...il.com>
To:	akpm@...ux-foundation.org, containers@...ts.linux-foundation.org
Cc:	xemul@...allels.com, serue@...ibm.com, dave@...ux.vnet.ibm.com,
	mingo@...e.hu, orenl@...columbia.edu, hch@...radead.org,
	torvalds@...ux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH 06/30] netns: don't get/put old netns on CLONE_NEWNET

copy_net_ns() doesn't copy anything, it creates fresh netns,
so get/put of old netns is unneeded.

Signed-off-by: Alexey Dobriyan <adobriyan@...il.com>
---

 net/core/net_namespace.c |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -120,10 +120,8 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 	struct net *new_net = NULL;
 	int err;
 
-	get_net(old_net);
-
 	if (!(flags & CLONE_NEWNET))
-		return old_net;
+		return get_net(old_net);
 
 	err = -ENOMEM;
 	new_net = net_alloc();
@@ -142,7 +140,6 @@ struct net *copy_net_ns(unsigned long flags, struct net *old_net)
 	if (err)
 		goto out_free;
 out:
-	put_net(old_net);
 	return new_net;
 
 out_free:
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/