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sctp: prepare for socket backlog behavior change 

sctp_inq_push() will soon be called without BH being blocked
when generic socket code flushes the socket backlog.

It is very possible SCTP can be converted to not rely on BH,
but this needs to be done by SCTP experts.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Marcelo Ricardo Leitner <marcelo.leitner@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2016-04-29 14:16:51 -07:00 committed by David S. Miller
parent e61da9e259
commit 860fbbc343
1 changed files with 2 additions and 0 deletions
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2
net/sctp/inqueue.c
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@ -89,10 +89,12 @@ void sctp_inq_push(struct sctp_inq *q, struct sctp_chunk *chunk)
* Eventually, we should clean up inqueue to not rely
* on the BH related data structures.
*/
local_bh_disable();
list_add_tail(&chunk->list, &q->in_chunk_list);
if (chunk->asoc)
chunk->asoc->stats.ipackets++;
q->immediate.func(&q->immediate);
local_bh_enable();
}
/* Peek at the next chunk on the inqeue. */