Hi Eric, Can you please have a look at this patchset? The most interesting one is the last oneliner adding FS_USERNS_MOUNT; whether I'm correct in stating that this isn't going to introduce any holes, or not... Thanks, Miklos --- Miklos Szeredi (5): ovl: document permission model ovl: ignore failure to copy up unknown xattrs vfs: allow unprivileged whiteout creation ovl: user xattr ovl: unprivieged mounts Documentation/filesystems/overlayfs.txt | 44 +++++++++++++ fs/char_dev.c | 3 + fs/namei.c | 17 ++--- fs/overlayfs/copy_up.c | 34 +++++++--- fs/overlayfs/dir.c | 2 +- fs/overlayfs/export.c | 2 +- fs/overlayfs/inode.c | 39 ++++++------ fs/overlayfs/namei.c | 56 +++++++++-------- fs/overlayfs/overlayfs.h | 81 +++++++++++++++--------- fs/overlayfs/ovl_entry.h | 1 + fs/overlayfs/readdir.c | 5 +- fs/overlayfs/super.c | 53 +++++++++++----- fs/overlayfs/util.c | 82 +++++++++++++++++++++---- include/linux/device_cgroup.h | 3 + 14 files changed, 298 insertions(+), 124 deletions(-) -- 2.21.0
