strparser: Queue work when being unpaused

When the upper layer unpauses a stream parser connection we need to
queue rx_work to make sure no events are missed.

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 11 insertions, 0 deletions

diff --git a/net/strparser/strparser.c b/net/strparser/strparser.c
index 68334b56db1e..4ecfc10cbe6d 100644
--- a/net/strparser/strparser.c
+++ b/net/strparser/strparser.c
@@ -445,6 +445,17 @@ int strp_init(struct strparser *strp, struct sock *csk,
 }
 EXPORT_SYMBOL_GPL(strp_init);
 
+void strp_unpause(struct strparser *strp)
+{
+        strp->rx_paused = 0;
+
+        /* Sync setting rx_paused with RX work */
+        smp_mb();
+
+        queue_work(strp_wq, &strp->rx_work);
+}
+EXPORT_SYMBOL_GPL(strp_unpause);
+
 /* strp must already be stopped so that strp_tcp_recv will no longer be called.
  * Note that strp_done is not called with the lower socket held.
  */