c7248321a3d4 ("fs: add ksys_dup{,3}() helper; remove in-kernel calls to sys_dup{,3}()")
3a18ef5c1b39 ("fs: add ksys_umount() helper; remove in-kernel call to sys_umount()")
312db1aa1dc7 ("fs: add ksys_mount() helper; remove in-kernel calls to sys_mount()")
819671ff849b ("syscalls: define and explain goal to not call syscalls in the kernel")