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authorEric Dumazet <edumazet@google.com>2021-02-10 17:41:44 +0300
committerDavid S. Miller <davem@davemloft.net>2021-02-12 01:10:07 +0300
commit3d368ab87cf6681f928de1ddf804d69600671bb2 (patch)
tree87071c9aa3fd53cdbadadd99deaefec3100d270b /include
parent06e56697bd98d33ab101920bb5380fcd7efed4df (diff)
downloadlinux-3d368ab87cf6681f928de1ddf804d69600671bb2.tar.xz
net: initialize net->net_cookie at netns setup
It is simpler to make net->net_cookie a plain u64 written once in setup_net() instead of looping and using atomic64 helpers. Lorenz Bauer wants to add SO_NETNS_COOKIE socket option and this patch would makes his patch series simpler. Signed-off-by: Eric Dumazet <edumazet@google.com> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: Lorenz Bauer <lmb@cloudflare.com> Acked-by: Daniel Borkmann <daniel@iogearbox.net> Tested-by: Lorenz Bauer <lmb@cloudflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/net_namespace.h4
1 files changed, 1 insertions, 3 deletions
diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 29567875f428..dcaee24a4d87 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -165,7 +165,7 @@ struct net {
struct netns_xfrm xfrm;
#endif
- atomic64_t net_cookie; /* written once */
+ u64 net_cookie; /* written once */
#if IS_ENABLED(CONFIG_IP_VS)
struct netns_ipvs *ipvs;
@@ -224,8 +224,6 @@ extern struct list_head net_namespace_list;
struct net *get_net_ns_by_pid(pid_t pid);
struct net *get_net_ns_by_fd(int fd);
-u64 __net_gen_cookie(struct net *net);
-
#ifdef CONFIG_SYSCTL
void ipx_register_sysctl(void);
void ipx_unregister_sysctl(void);