Well, not really v1, but gotta start numbering somewhere. :) This is a proof of concept implementation of in-kernel copyup for union mounts. It implements copy up of files on chown(), which is in some ways harder than rename() or link() because it doesn't lookup the parent separately. The idea behind this version is to keep the <mnt,dentry> pair of the parent directory of the chown() target around in case we need to copy it up. If we do need to copy up, we already have the path of the directory for the topmost file system, instead of having to look it up again. Valerie Aurora (4): VFS: Split inode_permission() and create path_permission() VFS: create user_path_and_parent() union-mount: In-kernel copyup routines union-mount: Implement chown() fs/namei.c | 125 +++++++++++++++++++++++++++++++---- fs/open.c | 33 ++++++++-- fs/union.c | 172 +++++++++++++++++++++++++++++++++++++++++++++++++ include/linux/fs.h | 1 + include/linux/namei.h | 2 + include/linux/union.h | 2 + 6 files changed, 315 insertions(+), 20 deletions(-) -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
