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6c9808ce09
kernel-ark/net/tipc
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Jon Paul Maloy 6c9808ce09 tipc: remove port_lock 
In previous commits we have reduced usage of port_lock to a minimum,
and complemented it with usage of bh_lock_sock() at the remaining
locations. The purpose has been to remove this lock altogether, since
it largely duplicates the role of bh_lock_sock. We are now ready to do
this.

However, we still need to protect the BH callers from inadvertent
release of the socket while they hold a reference to it. We do this by
replacing port_lock by a combination of a rw-lock protecting the
reference table as such, and updating the socket reference counter while
the socket is referenced from BH. This technique is more standard and
comprehensible than the previous approach, and turns out to have a
positive effect on overall performance.

Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Erik Hugne <erik.hugne@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2014-08-23 11:18:34 -07:00
..
addr.c tipc: compress out gratuitous extra carriage returns 2012-04-30 15:53:56 -04:00
addr.h tipc: explicitly include core.h in addr.h 2014-02-13 17:49:13 -05:00
bcast.c tipc: use pseudo message to wake up sockets after link congestion 2014-08-23 11:18:33 -07:00
bcast.h tipc: rename temporarily named functions 2014-07-16 21:38:19 -07:00
bearer.c tipc: improve and extend media address conversion functions 2014-05-14 15:19:48 -04:00
bearer.h tipc: improve and extend media address conversion functions 2014-05-14 15:19:48 -04:00
config.c tipc: use registry when scanning sockets 2014-08-23 11:18:34 -07:00
config.h tipc: obsolete the remote management feature 2014-03-27 13:08:36 -04:00
core.c tipc: decrease connection flow control window 2014-05-14 15:19:47 -04:00
core.h tipc: use pseudo message to wake up sockets after link congestion 2014-08-23 11:18:33 -07:00
discover.c tipc: clean up neigbor discovery message reception 2014-05-14 15:19:48 -04:00
discover.h tipc: fix race in disc create/delete 2014-04-22 21:17:53 -04:00
eth_media.c tipc: improve and extend media address conversion functions 2014-05-14 15:19:48 -04:00
ib_media.c tipc: improve and extend media address conversion functions 2014-05-14 15:19:48 -04:00
Kconfig tipc: add InfiniBand media type 2013-04-17 14:18:33 -04:00
link.c tipc: use pseudo message to wake up sockets after link congestion 2014-08-23 11:18:33 -07:00
link.h tipc: use pseudo message to wake up sockets after link congestion 2014-08-23 11:18:33 -07:00
log.c tipc: remove print_buf and deprecated log buffer code 2012-07-13 19:34:43 -04:00
Makefile tipc: purge signal handler infrastructure 2014-05-05 17:26:45 -04:00
msg.c tipc: use pseudo message to wake up sockets after link congestion 2014-08-23 11:18:33 -07:00
msg.h tipc: use pseudo message to wake up sockets after link congestion 2014-08-23 11:18:33 -07:00
name_distr.c tipc: rename temporarily named functions 2014-07-16 21:38:19 -07:00
name_distr.h tipc: make name table distributor use new send function 2014-07-16 21:38:18 -07:00
name_table.c tipc: fix memory leak of publications 2014-04-30 13:31:26 -04:00
name_table.h tipc: cosmetic realignment of function arguments 2013-06-17 15:53:01 -07:00
net.c tipc: use registry when scanning sockets 2014-08-23 11:18:34 -07:00
net.h tipc: same receive code path for connection protocol and data messages 2014-06-27 12:50:56 -07:00
netlink.c net: Use netlink_ns_capable to verify the permisions of netlink messages 2014-04-24 13:44:54 -04:00
node_subscr.c tipc: eliminate case of writing to freed memory 2014-06-27 12:50:54 -07:00
node_subscr.h tipc: avoid to asynchronously notify subscriptions 2014-05-05 17:26:44 -04:00
node.c tipc: use message to abort connections when losing contact to node 2014-08-23 11:18:33 -07:00
node.h tipc: use message to abort connections when losing contact to node 2014-08-23 11:18:33 -07:00
port.c tipc: use registry when scanning sockets 2014-08-23 11:18:34 -07:00
port.h tipc: remove port_lock 2014-08-23 11:18:34 -07:00
ref.c tipc: remove port_lock 2014-08-23 11:18:34 -07:00
ref.h tipc: remove port_lock 2014-08-23 11:18:34 -07:00
server.c net: Fix use after free by removing length arg from sk_data_ready callbacks. 2014-04-11 16:15:36 -04:00
server.h tipc: remove all enabled flags from all tipc components 2014-02-22 00:00:15 -05:00
socket.c tipc: remove port_lock 2014-08-23 11:18:34 -07:00
socket.h tipc: use registry when scanning sockets 2014-08-23 11:18:34 -07:00
subscr.c tipc: fix spinlock recursion bug for failed subscriptions 2014-03-24 15:36:56 -04:00
subscr.h tipc: cosmetic realignment of function arguments 2013-06-17 15:53:01 -07:00
sysctl.c tipc: change socket buffer overflow control to respect sk_rcvbuf 2013-06-17 15:53:00 -07:00