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Commit 81419d86 authored by Vlad Yasevich's avatar Vlad Yasevich Committed by David S. Miller
Browse files

sctp: per_cpu variables should be in bh_disabled section 



Since the change of the atomics to percpu variables, we now
have to disable BH in process context when touching percpu variables.

Signed-off-by: default avatarVlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 0c42749c

net/sctp/socket.c

+2 −2
Original line number Diff line number Diff line
@@ -3719,12 +3719,12 @@ SCTP_STATIC int sctp_init_sock(struct sock *sk) 
	sp->hmac = NULL;



	SCTP_DBG_OBJCNT_INC(sock);

	percpu_counter_inc(&sctp_sockets_allocated);



	/* Set socket backlog limit. */

	sk->sk_backlog.limit = sysctl_sctp_rmem[1];



	local_bh_disable();

	percpu_counter_inc(&sctp_sockets_allocated);

	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, 1);

	local_bh_enable();
@@ -3741,8 +3741,8 @@ SCTP_STATIC void sctp_destroy_sock(struct sock *sk) 
	/* Release our hold on the endpoint. */

	ep = sctp_sk(sk)->ep;

	sctp_endpoint_free(ep);

	percpu_counter_dec(&sctp_sockets_allocated);

	local_bh_disable();

	percpu_counter_dec(&sctp_sockets_allocated);

	sock_prot_inuse_add(sock_net(sk), sk->sk_prot, -1);

	local_bh_enable();

}