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authorDavid S. Miller <davem@davemloft.net>2009-02-17 21:24:05 -0800
committerDavid S. Miller <davem@davemloft.net>2009-02-17 21:24:05 -0800
commit92a0acce186cde8ead56c6915d9479773673ea1a (patch)
tree97b7663f77f8274cb52d429c8a7db97c70daf745 /net
parent34edaa88324004baf4884fb0388f86059d9c4878 (diff)
downloadlinux-2.6.38-lt-ux500-92a0acce186cde8ead56c6915d9479773673ea1a.tar.gz
net: Kill skb_truesize_check(), it only catches false-positives.
A long time ago we had bugs, primarily in TCP, where we would modify skb->truesize (for TSO queue collapsing) in ways which would corrupt the socket memory accounting. skb_truesize_check() was added in order to try and catch this error more systematically. However this debugging check has morphed into a Frankenstein of sorts and these days it does nothing other than catch false-positives. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r--net/core/skbuff.c8
-rw-r--r--net/core/sock.c1
2 files changed, 0 insertions, 9 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index da74b844f4e..c6a6b166f8d 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -143,14 +143,6 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
BUG();
}
-void skb_truesize_bug(struct sk_buff *skb)
-{
- WARN(net_ratelimit(), KERN_ERR "SKB BUG: Invalid truesize (%u) "
- "len=%u, sizeof(sk_buff)=%Zd\n",
- skb->truesize, skb->len, sizeof(struct sk_buff));
-}
-EXPORT_SYMBOL(skb_truesize_bug);
-
/* Allocate a new skbuff. We do this ourselves so we can fill in a few
* 'private' fields and also do memory statistics to find all the
* [BEEP] leaks.
diff --git a/net/core/sock.c b/net/core/sock.c
index 6f2e1337975..6e4f14d1ef8 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -1137,7 +1137,6 @@ void sock_rfree(struct sk_buff *skb)
{
struct sock *sk = skb->sk;
- skb_truesize_check(skb);
atomic_sub(skb->truesize, &sk->sk_rmem_alloc);
sk_mem_uncharge(skb->sk, skb->truesize);
}