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| author | Eric W. Biederman <ebiederm@xmission.com> | 2015-05-09 04:10:31 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-11 16:50:18 +0200 |
| commit | 26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe (patch) | |
| tree | e2161c09531299ce4bfbeb1506c420b9f8db7fc2 /include/net/sock.h | |
| parent | net: Pass kern from net_proto_family.create to sk_alloc (diff) | |
| download | linux-26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe.tar.xz linux-26abe14379f8e2fa3fd1bcf97c9a7ad9364886fe.zip | |
net: Modify sk_alloc to not reference count the netns of kernel sockets.
Now that sk_alloc knows when a kernel socket is being allocated modify
it to not reference count the network namespace of kernel sockets.
Keep track of if a socket needs reference counting by adding a flag to
struct sock called sk_net_refcnt.
Update all of the callers of sock_create_kern to stop using
sk_change_net and sk_release_kernel as those hacks are no longer
needed, to avoid reference counting a kernel socket.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index d8dcf91732b0..9e6b2c0b4741 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -184,6 +184,7 @@ struct sock_common { unsigned char skc_reuse:4; unsigned char skc_reuseport:1; unsigned char skc_ipv6only:1; + unsigned char skc_net_refcnt:1; int skc_bound_dev_if; union { struct hlist_node skc_bind_node; @@ -323,6 +324,7 @@ struct sock { #define sk_reuse __sk_common.skc_reuse #define sk_reuseport __sk_common.skc_reuseport #define sk_ipv6only __sk_common.skc_ipv6only +#define sk_net_refcnt __sk_common.skc_net_refcnt #define sk_bound_dev_if __sk_common.skc_bound_dev_if #define sk_bind_node __sk_common.skc_bind_node #define sk_prot __sk_common.skc_prot |