[INET]: inet_frag_evictor() must run with BH disabled

Based upon a lockdep trace from Dave Jones.

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

1 files changed, 3 insertions, 0 deletions

diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c
index 724d69aed031..a0a3c78cb5e0 100644
--- a/net/ipv4/inet_fragment.c
+++ b/net/ipv4/inet_fragment.c
@@ -86,7 +86,10 @@ EXPORT_SYMBOL(inet_frags_fini);
 void inet_frags_exit_net(struct netns_frags *nf, struct inet_frags *f)
 {
         nf->low_thresh = 0;
+
+        local_bh_disable();
         inet_frag_evictor(nf, f);
+        local_bh_enable();
 }
 EXPORT_SYMBOL(inet_frags_exit_net);