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| author |   Wei Wang <weiwan@google.com> | 2017-06-17 10:42:28 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2017-06-17 22:53:59 -0400 |
| commit | 4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36 (patch) | |
| tree | 534f9011f830f5cea49311312b19a9f19a9f67f6 /include/net/dst.h | |
| parent | net: introduce DST_NOGC in dst_release() to destroy dst based on refcnt (diff) | |
| download | linux-dev-4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36.tar.xz linux-dev-4a6ce2b6f2ecabbddcfe47e7cf61dd0f00b10e36.zip | |
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 <weiwan@google.com>
Acked-by: Martin KaFai Lau <kafai@fb.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/dst.h')
| -rw-r--r-- | include/net/dst.h | 1 |
1 files changed, 1 insertions, 0 deletions
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) { |