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| author | Eric W. Biederman <ebiederm@xmission.com> | 2015-05-09 05:07:08 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-05-11 17:50:16 +0300 |
| commit | 140e807da12988e2a925fe029336e7bb67a8d4de (patch) | |
| tree | d201af832973088bc2d6c91d9b1ef68e7332f3da /include/linux | |
| parent | 80ba92fa1a92dea128283f69f55b02242e213650 (diff) | |
| download | linux-140e807da12988e2a925fe029336e7bb67a8d4de.tar.xz | |
tun: Utilize the normal socket network namespace refcounting.
There is no need for tun to do the weird network namespace refcounting.
The existing network namespace refcounting in tfile has almost exactly
the same lifetime. So rewrite the code to use the struct sock network
namespace refcounting and remove the unnecessary hand rolled network
namespace refcounting and the unncesary tfile->net.
This change allows the tun code to directly call sock_put bypassing
sock_release and making SOCK_EXTERNALLY_ALLOCATED unnecessary.
Remove the now unncessary tun_release so that if anything tries to use
the sock_release code path the kernel will oops, and let us know about
the bug.
The macvtap code already uses it's internal socket this way.
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/net.h | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/include/linux/net.h b/include/linux/net.h index 738ea48be889..8a5e81d2bdf7 100644 --- a/include/linux/net.h +++ b/include/linux/net.h @@ -38,7 +38,6 @@ struct net; #define SOCK_NOSPACE 2 #define SOCK_PASSCRED 3 #define SOCK_PASSSEC 4 -#define SOCK_EXTERNALLY_ALLOCATED 5 #ifndef ARCH_HAS_SOCKET_TYPES /** |