linux.git/net/sctp/protocol.c, branch v2.6.16

[INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h

2006-01-03T21:11:21+00:00

To help in reducing the number of include dependencies, several files were
touched as they were getting needed headers indirectly for stuff they use.

Thanks also to Alan Menegotto for pointing out that net/dccp/proto.c had
linux/dccp.h include twice.

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[NET]: move struct proto_ops to const

2006-01-03T21:11:15+00:00

I noticed that some of 'struct proto_ops' used in the kernel may share
a cache line used by locks or other heavily modified data. (default
linker alignement is 32 bytes, and L1_CACHE_LINE is 64 or 128 at
least)

This patch makes sure a 'struct proto_ops' can be declared as const,
so that all cpus can share all parts of it without false sharing.

This is not mandatory : a driver can still use a read/write structure
if it needs to (and eventually a __read_mostly)

I made a global stubstitute to change all existing occurences to make
them const.

This should reduce the possibility of false sharing on SMP, and
speedup some socket system calls.

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

[SCTP]: Include ulpevents in socket receive buffer accounting.

2005-11-12T00:08:24+00:00

Also introduces a sysctl option to configure the receive buffer
accounting policy to be either at socket or association level.
Default is all the associations on the same socket share the
receive buffer.

Signed-off-by: Neil Horman 
Signed-off-by: Sridhar Samudrala 
Signed-off-by: David S. Miller

[SCTP]: Fix potential NULL pointer dereference in sctp_v4_get_saddr

2005-11-12T00:05:55+00:00

It is possible to get to sctp_v4_get_saddr() without a valid
association.  This happens when processing OOTB packets and
the cached route entry is no longer valid.
However, when responding to OOTB packets we already properly
set the source address based on the information in the OOTB
packet.  So, if we we get to sctp_v4_get_saddr() without an
association we can simply return.

Signed-off-by: Vladislav Yasevich 
Signed-off-by: Sridhar Samudrala 
Signed-off-by: David S. Miller

[PATCH] gfp flags annotations - part 1

2005-10-08T22:00:57+00:00

 - added typedef unsigned int __nocast gfp_t;

 - replaced __nocast uses for gfp flags with gfp_t - it gives exactly
   the same warnings as far as sparse is concerned, doesn't change
   generated code (from gcc point of view we replaced unsigned int with
   typedef) and documents what's going on far better.

Signed-off-by: Al Viro 
Signed-off-by: Linus Torvalds

[IPV4]: Replace __in_dev_get with __in_dev_get_rcu/rtnl

2005-10-03T21:35:55+00:00

The following patch renames __in_dev_get() to __in_dev_get_rtnl() and
introduces __in_dev_get_rcu() to cover the second case.

1) RCU with refcnt should use in_dev_get().
2) RCU without refcnt should use __in_dev_get_rcu().
3) All others must hold RTNL and use __in_dev_get_rtnl().

There is one exception in net/ipv4/route.c which is in fact a pre-existing
race condition.  I've marked it as such so that we remember to fix it.

This patch is based on suggestions and prior work by Suzanne Wood and
Paul McKenney.

Signed-off-by: Herbert Xu 
Signed-off-by: David S. Miller

[NET]: use __read_mostly on kmem_cache_t , DEFINE_SNMP_STAT pointers

2005-08-29T23:11:18+00:00

This patch puts mostly read only data in the right section
(read_mostly), to help sharing of these data between CPUS without
memory ping pongs.

On one of my production machine, tcp_statistics was sitting in a
heavily modified cache line, so *every* SNMP update had to force a
reload.

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

[INET]: Make inet_create try to load protocol modules

2005-08-29T22:50:54+00:00

Syntax is net-pf-PROTOCOL_FAMILY-PROTOCOL-SOCK_TYPE and if this
fails net-pf-PROTOCOL_FAMILY-PROTOCOL.

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[NET]: Cleanup INET_REFCNT_DEBUG code

2005-08-29T22:37:29+00:00

Signed-off-by: Arnaldo Carvalho de Melo 
Signed-off-by: David S. Miller

[SCTP]: __nocast annotations

2005-07-12T03:57:47+00:00

Signed-off-by: Alexey Dobriyan 
Signed-off-by: David S. Miller