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kernel: Add ATM fixes pending upstream merge (queue reduction, race fixes)

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Patches about to go into net-next.git

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34410 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
juhosg
2012-11-29 17:37:18 +00:00
parent baadb9df43
commit a9a63643c4
4 changed files with 2154 additions and 0 deletions
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27
target/linux/generic/patches-3.3/080-prot-release-cb.patch Normal file
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@@ -0,0 +1,27 @@
This was added in commit 46d3ceabd8d98ed0ad10f20c595ca784e34786c5 (tcp:
TCP Small Queues) but we need it for pppoatm too.
--- a/include/net/sock.h
+++ b/include/net/sock.h
@@ -858,6 +858,8 @@ struct proto {
int (*backlog_rcv) (struct sock *sk,
struct sk_buff *skb);
+ void (*release_cb)(struct sock *sk);
+
/* Keeping track of sk's, looking them up, and port selection methods. */
void (*hash)(struct sock *sk);
void (*unhash)(struct sock *sk);
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2159,6 +2159,10 @@ void release_sock(struct sock *sk)
spin_lock_bh(&sk->sk_lock.slock);
if (sk->sk_backlog.tail)
__release_sock(sk);
+
+ if (sk->sk_prot->release_cb)
+ sk->sk_prot->release_cb(sk);
+
sk->sk_lock.owned = 0;
if (waitqueue_active(&sk->sk_lock.wq))
wake_up(&sk->sk_lock.wq);