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authorDave Airlie <[email protected]>2021-06-23 00:07:48 +0000
committerDave Airlie <[email protected]>2021-06-23 00:07:48 +0000
commitf45fbbb6d5cff29ddfc708676ec1c2496eed3a07 (patch)
tree5496fee9f6b10da368aa49b03612061156e42d2f /net/core/net_namespace.c
parentMerge tag 'amd-drm-next-5.14-2021-06-16' of https://gitlab.freedesktop.org/ag... (diff)
parentLinux 5.13-rc7 (diff)
downloadkernel-f45fbbb6d5cff29ddfc708676ec1c2496eed3a07.tar.gz
kernel-f45fbbb6d5cff29ddfc708676ec1c2496eed3a07.zip
Backmerge tag 'v5.13-rc7' into drm-next
Backmerge Linux 5.13-rc7 to make some pulls from later bases apply, and to bake in the conflicts so far.
Diffstat (limited to 'net/core/net_namespace.c')
-rw-r--r--net/core/net_namespace.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
index 43b6ac4c4439..9b5a767eddd5 100644
--- a/net/core/net_namespace.c
+++ b/net/core/net_namespace.c
@@ -641,6 +641,18 @@ void __put_net(struct net *net)
}
EXPORT_SYMBOL_GPL(__put_net);
+/**
+ * get_net_ns - increment the refcount of the network namespace
+ * @ns: common namespace (net)
+ *
+ * Returns the net's common namespace.
+ */
+struct ns_common *get_net_ns(struct ns_common *ns)
+{
+ return &get_net(container_of(ns, struct net, ns))->ns;
+}
+EXPORT_SYMBOL_GPL(get_net_ns);
+
struct net *get_net_ns_by_fd(int fd)
{
struct file *file;
@@ -660,14 +672,8 @@ struct net *get_net_ns_by_fd(int fd)
fput(file);
return net;
}
-
-#else
-struct net *get_net_ns_by_fd(int fd)
-{
- return ERR_PTR(-EINVAL);
-}
-#endif
EXPORT_SYMBOL_GPL(get_net_ns_by_fd);
+#endif
struct net *get_net_ns_by_pid(pid_t pid)
{