]> pilppa.com Git - linux-2.6-omap-h63xx.git/commit
[SCTP]: Convert bind_addr_list locking to RCU
authorVlad Yasevich <vladislav.yasevich@hp.com>
Sun, 16 Sep 2007 23:03:28 +0000 (16:03 -0700)
committerDavid S. Miller <davem@davemloft.net>
Sun, 16 Sep 2007 23:03:28 +0000 (16:03 -0700)
commit559cf710b07c5e2cfa3fb8d8f4a1320fd84c53f9
treedeb74aea811a7d7c7e203f3743fd15372f8a6589
parent293035479942400a7fe8e4f72465d4e4e466b91a
[SCTP]: Convert bind_addr_list locking to RCU

Since the sctp_sockaddr_entry is now RCU enabled as part of
the patch to synchronize sctp_localaddr_list, it makes sense to
change all handling of these entries to RCU.  This includes the
sctp_bind_addrs structure and it's list of bound addresses.

This list is currently protected by an external rw_lock and that
looks like an overkill.  There are only 2 writers to the list:
bind()/bindx() calls, and BH processing of ASCONF-ACK chunks.
These are already seriealized via the socket lock, so they will
not step on each other.  These are also relatively rare, so we
should be good with RCU.

The readers are varied and they are easily converted to RCU.

Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Acked-by: Sridhar Samdurala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/sctp/structs.h
net/sctp/associola.c
net/sctp/bind_addr.c
net/sctp/endpointola.c
net/sctp/ipv6.c
net/sctp/protocol.c
net/sctp/sm_make_chunk.c
net/sctp/socket.c