linux-toradex.git/net/ipv4/inet_connection_sock.c, branch v3.4-rc7

tcp: bind() optimize port allocation

2012-01-26T02:50:43+00:00

Port autoselection finds a port and then drop the lock,
then right after that, gets the hash bucket again and lock it.

Fix it to go direct.

Signed-off-by: Flavio Leitner 
Signed-off-by: Marcelo Ricardo Leitner 
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller

tcp: bind() fix autoselection to share ports

2012-01-26T02:50:43+00:00

The current code checks for conflicts when the application
requests a specific port.  If there is no conflict, then
the request is granted.

On the other hand, the port autoselection done by the kernel
fails when all ports are bound even when there is a port
with no conflict available.

The fix changes port autoselection to check if there is a
conflict and use it if not.

Signed-off-by: Flavio Leitner 
Signed-off-by: Marcelo Ricardo Leitner 
Acked-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: use IS_ENABLED(CONFIG_IPV6)

2011-12-11T23:25:16+00:00

Instead of testing defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)

Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

net: rename sk_clone to sk_clone_lock

2011-11-08T22:07:07+00:00

Make clear that sk_clone() and inet_csk_clone() return a locked socket.

Add _lock() prefix and kerneldoc.

Suggested-by: Linus Torvalds 
Signed-off-by: Eric Dumazet 
Signed-off-by: David S. Miller

seqlock: Get rid of SEQLOCK_UNLOCKED

2011-05-24T13:22:17+00:00

All static seqlock should be initialized with the lockdep friendly
__SEQLOCK_UNLOCKED() macro.

Remove legacy SEQLOCK_UNLOCKED() macro.

Signed-off-by: Eric Dumazet 
Cc: David Miller 
Link: http://lkml.kernel.org/r/%3C1306238888.3026.31.camel%40edumazet-laptop%3E
Signed-off-by: Thomas Gleixner

ipv4: Make caller provide flowi4 key to inet_csk_route_req().

2011-05-18T22:32:03+00:00

This way the caller can get at the fully resolved fl4->{daddr,saddr}
etc.

Signed-off-by: David S. Miller

ipv4: Create inet_csk_route_child_sock().

2011-05-08T21:34:22+00:00

This is just like inet_csk_route_req() except that it operates after
we've created the new child socket.

In this way we can use the new socket's cork flow for proper route
key storage.

This will be used by DCCP and TCP child socket creation handling.

Signed-off-by: David S. Miller

ipv4: Get route daddr from flow key in inet_csk_route_req().

2011-04-29T06:50:09+00:00

Now that output route lookups update the flow with
destination address selection, we can fetch it from
fl4->daddr instead of rt->rt_dst

Signed-off-by: David S. Miller

inet: add RCU protection to inet->opt

2011-04-28T20:16:35+00:00

We lack proper synchronization to manipulate inet->opt ip_options

Problem is ip_make_skb() calls ip_setup_cork() and
ip_setup_cork() possibly makes a copy of ipc->opt (struct ip_options),
without any protection against another thread manipulating inet->opt.

Another thread can change inet->opt pointer and free old one under us.

Use RCU to protect inet->opt (changed to inet->inet_opt).

Instead of handling atomic refcounts, just copy ip_options when
necessary, to avoid cache line dirtying.

We cant insert an rcu_head in struct ip_options since its included in
skb->cb[], so this patch is large because I had to introduce a new
ip_options_rcu structure.

Signed-off-by: Eric Dumazet 
Cc: Herbert Xu 
Signed-off-by: David S. Miller

Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

2011-04-19T07:21:33+00:00

Conflicts:
	drivers/net/bnx2x/bnx2x_ethtool.c