old_mnt_ns 3967 fs/namespace.c struct mnt_namespace *mnt_ns = to_mnt_ns(ns), *old_mnt_ns; old_mnt_ns 3983 fs/namespace.c old_mnt_ns = nsproxy->mnt_ns; old_mnt_ns 3991 fs/namespace.c nsproxy->mnt_ns = old_mnt_ns; old_mnt_ns 3996 fs/namespace.c put_mnt_ns(old_mnt_ns);