net: Add FLOWI_FLAG_CAN_SLEEP.

And set is in contexts where the route resolution can sleep.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/net/route.h b/include/net/route.h
index 6de4333d6002..1be5c05a0905 100644
--- a/include/net/route.h
+++ b/include/net/route.h
@@ -185,6 +185,8 @@ static inline int ip_route_connect(struct rtable **rp, __be32 dst,
                 fl.flags |= FLOWI_FLAG_ANYSRC;
         if (protocol == IPPROTO_TCP)
                 fl.flags |= FLOWI_FLAG_PRECOW_METRICS;
+        if (can_sleep)
+                fl.flags |= FLOWI_FLAG_CAN_SLEEP;
 
         if (!dst || !src) {
                 err = __ip_route_output_key(net, rp, &fl);