From 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 Mon Sep 17 00:00:00 2001 From: Wei Wang Date: Sat, 17 Jun 2017 10:42:28 -0700 Subject: net: introduce a new function dst_dev_put() This function should be called when removing routes from fib tree after the dst gc is no longer in use. We first mark DST_OBSOLETE_DEAD on this dst to make sure next dst_ops->check() fails and returns NULL. Secondly, as we no longer keep the gc_list, we need to properly release dst->dev right at the moment when the dst is removed from the fib/fib6 tree. It does the following: 1. change dst->input and output pointers to dst_discard/dst_dscard_out to discard all packets 2. replace dst->dev with loopback interface Signed-off-by: Wei Wang Acked-by: Martin KaFai Lau Signed-off-by: David S. Miller --- include/net/dst.h | 1 + 1 file changed, 1 insertion(+) (limited to 'include/net') diff --git a/include/net/dst.h b/include/net/dst.h index 2735d5a1e774..11d779803c0d 100644 --- a/include/net/dst.h +++ b/include/net/dst.h @@ -428,6 +428,7 @@ void dst_init(struct dst_entry *dst, struct dst_ops *ops, unsigned short flags); void __dst_free(struct dst_entry *dst); struct dst_entry *dst_destroy(struct dst_entry *dst); +void dst_dev_put(struct dst_entry *dst); static inline void dst_free(struct dst_entry *dst) { -- cgit v1.2.3