On Fri, 2018-06-15 at 08:25 -0700, Matthew Wilcox wrote: > On Fri, Jun 15, 2018 at 09:59:17AM -0500, Seth Forshee wrote: > > - Supports any id maps possible for a user namespace > > Have we already ruled out storing the container's UID/GID/perms in an > extended attribute, and having all the files owned by the owner of > the container from the perspective of the unshifted fs. Then shiftfs > reads the xattr and presents the files with the container's idea of > what the UID is? I've got an experimental patch set that does the *mark* as an xattr. However the shift is still done through s_userns, which allows for multiple shifts. James
