Ying Xue a83045292d tipc: remove bearer_lock from tipc_bearer struct ... After the earlier commits ("tipc: remove 'links' list from tipc_bearer struct") and ("tipc: introduce new spinlock to protect struct link_req"), there is no longer any need to protect struct link_req or or any link list by use of bearer_lock. Furthermore, we have eliminated the need for using bearer_lock during downcalls (send) from the link to the bearer, since we have ensured that bearers always have a longer life cycle that their associated links, and always contain valid data. So, the only need now for a lock protecting bearers is for guaranteeing consistency of the bearer list itself. For this, it is sufficient, at least for the time being, to continue applying 'net_lock´ in write mode. By removing bearer_lock we also pre-empt introduction of issue b) descibed in the previous commit "tipc: remove 'links' list from tipc_bearer struct": "b) When the outer protection from net_lock is gone, taking bearer_lock and node_lock in opposite order of method 1) and 2) will become an obvious deadlock hazard". Therefore, we now eliminate the bearer_lock spinlock. Signed-off-by: Ying Xue <ying.xue@windriver.com> Reviewed-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Jon Maloy <jon.maloy@ericsson.com> Signed-off-by: David S. Miller <davem@davemloft.net>		2014-02-13 17:57:07 -05:00
..
addr.c
addr.h	tipc: explicitly include core.h in addr.h	2014-02-13 17:49:13 -05:00
bcast.c	tipc: remove bearer_lock from tipc_bearer struct	2014-02-13 17:57:07 -05:00
bcast.h
bearer.c	tipc: remove bearer_lock from tipc_bearer struct	2014-02-13 17:57:07 -05:00
bearer.h	tipc: remove bearer_lock from tipc_bearer struct	2014-02-13 17:57:07 -05:00
config.c
config.h
core.c	tipc: remove 'links' list from tipc_bearer struct	2014-02-13 17:57:05 -05:00
core.h
discover.c
discover.h
eth_media.c
handler.c
ib_media.c
Kconfig
link.c	tipc: delay delete of link when failover is needed	2014-02-13 17:57:07 -05:00
link.h	tipc: delay delete of link when failover is needed	2014-02-13 17:57:07 -05:00
log.c
Makefile
msg.c
msg.h
name_distr.c
name_distr.h
name_table.c
name_table.h
net.c
net.h
netlink.c
node.c	tipc: delay delete of link when failover is needed	2014-02-13 17:57:07 -05:00
node.h
node_subscr.c
node_subscr.h
port.c
port.h
ref.c
ref.h
server.c
server.h
socket.c	net: add build-time checks for msg->msg_name size	2014-01-18 23:04:16 -08:00
subscr.c
subscr.h
sysctl.c