On Sat, Mar 7, 2020 at 10:48 AM Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> wrote: > > On Fri, Mar 06, 2020 at 05:25:49PM +0100, Miklos Szeredi wrote: > > On Tue, Mar 03, 2020 at 08:46:09AM +0100, Miklos Szeredi wrote: > > > > > > I'm doing a patch. Let's see how it fares in the face of all these > > > preconceptions. > > > > Here's a first cut. Doesn't yet have superblock info, just mount info. > > Probably has rough edges, but appears to work. > > > > I started with sysfs, then kernfs, then went with a custom filesystem, because > > neither could do what I wanted. > > Hm, what is wrong with kernfs that prevented you from using it here? > Just complexity or something else? I wanted to have a single instance covering all the namespaces, with just a filtered view depending on which namespace the task is looking at it. Having a kernfs_node for each attribute is also rather heavy compared to the size of struct mount. Thanks, Miklos
