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sctp: consolidate local_bh_disable/enable + spin_lock/unlock to _bh variant 

local_bh_disable() + spin_lock() is equivalent to spin_lock_bh(), same for
the unlock/enable case, so replace the calls by the appropriate wrappers.

Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nicholas Mc Guire 2016-03-13 11:48:24 +01:00 committed by David S. Miller
parent 1cdba55055
commit 489ce5f441
1 changed files with 2 additions and 4 deletions
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6
net/sctp/socket.c
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@ -7254,14 +7254,12 @@ static void sctp_sock_migrate(struct sock *oldsk, struct sock *newsk,
/* Hook this new socket in to the bind_hash list. */
head = &sctp_port_hashtable[sctp_phashfn(sock_net(oldsk),
inet_sk(oldsk)->inet_num)];
local_bh_disable();
spin_lock(&head->lock);
spin_lock_bh(&head->lock);
pp = sctp_sk(oldsk)->bind_hash;
sk_add_bind_node(newsk, &pp->owner);
sctp_sk(newsk)->bind_hash = pp;
inet_sk(newsk)->inet_num = inet_sk(oldsk)->inet_num;
spin_unlock(&head->lock);
local_bh_enable();
spin_unlock_bh(&head->lock);
/* Copy the bind_addr list from the original endpoint to the new
* endpoint so that we can handle restarts properly