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sctp: use read_lock_bh in sctp_eps_seq_show 

This patch is to use read_lock_bh instead of local_bh_disable
and read_lock in sctp_eps_seq_show.

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Xin Long 2017-06-10 15:13:32 +08:00 committed by David S. Miller
parent 6dfe4b97e0
commit c0a4c2d1cd
1 changed files with 2 additions and 4 deletions
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6
net/sctp/proc.c
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@ -218,8 +218,7 @@ static int sctp_eps_seq_show(struct seq_file *seq, void *v)
return -ENOMEM;
head = &sctp_ep_hashtable[hash];
local_bh_disable();
read_lock(&head->lock);
read_lock_bh(&head->lock);
sctp_for_each_hentry(epb, &head->chain) {
ep = sctp_ep(epb);
sk = epb->sk;
@ -234,8 +233,7 @@ static int sctp_eps_seq_show(struct seq_file *seq, void *v)
sctp_seq_dump_local_addrs(seq, epb);
seq_printf(seq, "\n");
}
read_unlock(&head->lock);
local_bh_enable();
read_unlock_bh(&head->lock);
return 0;
}