sctp: remove the dead field of sctp_transport
authorXin Long <lucien.xin@gmail.com>
Thu, 21 Jan 2016 17:49:09 +0000 (01:49 +0800)
committerDavid S. Miller <davem@davemloft.net>
Thu, 28 Jan 2016 23:59:32 +0000 (15:59 -0800)
commit47faa1e4c50ec26e6e75dcd1ce53f064bd45f729
treeefc573a557079fb75d1cf2b1c16d187526884a64
parentfba4c330c5b9d1beeae08a42ed4430f5055e7f27
sctp: remove the dead field of sctp_transport

After we use refcnt to check if transport is alive, the dead can be
removed from sctp_transport.

The traversal of transport_addr_list in procfs dump is using
list_for_each_entry_rcu, no need to check if it has been freed.

sctp_generate_t3_rtx_event and sctp_generate_heartbeat_event is
protected by sock lock, it's not necessary to check dead, either.
also, the timers are cancelled when sctp_transport_free() is
called, that it doesn't wait for refcnt to reach 0 to cancel them.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/sctp/structs.h
net/sctp/proc.c
net/sctp/sm_sideeffect.c
net/sctp/transport.c