This is a note to let you know that I've just added the patch titled
fib: add rtnl locking in ip_fib_net_exit
to the 2.6.38-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fib-add-rtnl-locking-in-ip_fib_net_exit.patch
and it can be found in the queue-2.6.38 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 228f4d04e7d7a239b4c44e6f329aaec88f40e54a Mon Sep 17 00:00:00 2001
From: Eric Dumazet <[email protected]>
Date: Wed, 30 Mar 2011 16:57:46 -0700
Subject: fib: add rtnl locking in ip_fib_net_exit
From: Eric Dumazet <[email protected]>
[ Upstream commit e2666f84958adb3a034b98e99699b55705117e01 ]
Daniel J Blueman reported a lockdep splat in trie_firstleaf(), caused by
RTNL being not locked before a call to fib_table_flush()
Reported-by: Daniel J Blueman <[email protected]>
Signed-off-by: Eric Dumazet <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
net/ipv4/fib_frontend.c | 2 ++
1 file changed, 2 insertions(+)
--- a/net/ipv4/fib_frontend.c
+++ b/net/ipv4/fib_frontend.c
@@ -1041,6 +1041,7 @@ static void ip_fib_net_exit(struct net *
fib4_rules_exit(net);
#endif
+ rtnl_lock();
for (i = 0; i < FIB_TABLE_HASHSZ; i++) {
struct fib_table *tb;
struct hlist_head *head;
@@ -1053,6 +1054,7 @@ static void ip_fib_net_exit(struct net *
fib_free_table(tb);
}
}
+ rtnl_unlock();
kfree(net->ipv4.fib_table_hash);
}
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.38/net_sched-fix-ip_tos2prio.patch
queue-2.6.38/fib-add-rtnl-locking-in-ip_fib_net_exit.patch
queue-2.6.38/vlan-should-take-into-account-needed_headroom.patch
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