Re: Revised keyrings(7) man page for review

From: David Howells
Date: Tue Dec 13 2016 - 09:20:44 EST


Michael Kerrisk (man-pages) <mtk.manpages@xxxxxxxxx> 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