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| author | David S. Miller <davem@davemloft.net> | 2024-03-01 12:09:40 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-03-01 12:09:40 +0100 |
| commit | e960825709330cb199d209740326cec37e8c419d (patch) | |
| tree | f2e7cea036c72ec80082a44b44f0d412444c74ba /net/core | |
| parent | Merge branch 'netdevsim-link' (diff) | |
| parent | inet: use xa_array iterator to implement inet_dump_ifaddr() (diff) | |
| download | linux-e960825709330cb199d209740326cec37e8c419d.tar.xz linux-e960825709330cb199d209740326cec37e8c419d.zip | |
Merge branch 'inet_dump_ifaddr-no-rtnl'
Eric Dumazet says:
====================
inet: no longer use RTNL to protect inet_dump_ifaddr()
This series convert inet so that a dump of addresses (ip -4 addr)
no longer requires RTNL.
====================
Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/dev.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 4868e6734509..fe054cbd41e9 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -180,8 +180,9 @@ static DECLARE_RWSEM(devnet_rename_sem); static inline void dev_base_seq_inc(struct net *net) { - while (++net->dev_base_seq == 0) - ; + unsigned int val = net->dev_base_seq + 1; + + WRITE_ONCE(net->dev_base_seq, val ?: 1); } static inline struct hlist_head *dev_name_hash(struct net *net, const char *name) |