Support the generic ns lookup infrastructure to support file handles for namespaces.
Signed-off-by: Christian Brauner brauner@kernel.org --- kernel/pid_namespace.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/kernel/pid_namespace.c b/kernel/pid_namespace.c index 20ce4052d1c5..228ae20299f9 100644 --- a/kernel/pid_namespace.c +++ b/kernel/pid_namespace.c @@ -23,6 +23,7 @@ #include <linux/sched/task.h> #include <linux/sched/signal.h> #include <linux/idr.h> +#include <linux/nstree.h> #include <uapi/linux/wait.h> #include "pid_sysctl.h"
@@ -122,6 +123,7 @@ static struct pid_namespace *create_pid_namespace(struct user_namespace *user_ns ns->memfd_noexec_scope = pidns_memfd_noexec_scope(parent_pid_ns); #endif
+ ns_tree_add(ns); return ns;
out_free_inum: @@ -147,6 +149,7 @@ static void delayed_free_pidns(struct rcu_head *p)
static void destroy_pid_namespace(struct pid_namespace *ns) { + ns_tree_remove(ns); unregister_pidns_sysctls(ns);
ns_free_inum(&ns->ns); @@ -473,6 +476,7 @@ static __init int pid_namespaces_init(void) #endif
register_pid_ns_sysctl_table_vm(); + ns_tree_add(&init_pid_ns); return 0; }