Michael Kerrisk (man-pages) <mtk.manpa...@gmail.com> wrote: > The payload data may be stored in a tmpfs filesystem, > rather than in kernel memory, if the data size exceeds the > overhead of storing the data in the filesystem. (Storing > the data in a filesystem requires filesystem structures to > be allocated in the kernel. The size of these structures > determines the size threshold above which the tmpfs storage > method is used.) Since Linux 4.8, the payload data is > encrypted when stored in tmpfs, to prevent it being written > unencrypted into swap space.
"... thereby preventing it from being written unencrypted into the swapspace"? David