On Thu, Jul 23, 2020 at 6:51 AM nerdopolis <bluescreen_avenger@xxxxxxxxxxx> wrote: > > On Thursday, July 16, 2020 1:03:52 PM EDT Amir Goldstein wrote: > > On Thu, Jul 16, 2020 at 6:09 AM nerdopolis > > <bluescreen_avenger@xxxxxxxxxxx> wrote: > > > > > > Hi > > > > > > A while back I opened up https://bugzilla.kernel.org/show_bug.cgi?id=195113 describing a documentation problem in > > > https://www.kernel.org/doc/Documentation/filesystems/overlayfs.txt but for whatever reason, it hasn't been seen. > > > > > > > > > The problem is that it says "The lower filesystem can be any filesystem supported by Linux" > > > however, this is not the case, as Linux supports vfat, and vfat doesn't work as a lower filesystem > > > > > > So there's no way to tell what filesystems are applicable for an overlay lowerfs, > > > and I don't think any existing userspace utilities can detect it. > > > > > > Could it be possible for the .txt file to be updated? > > > > > > > The way it works usually in this project is you can submit a patch to fix the > > problem: > > https://www.kernel.org/doc/html/v4.17/process/submitting-patches.html > > > > But if you don't want to go through that process, you can offer a text to > > fix documentation. > > > > But I myself cannot offer anything better than: > > "The lower filesystem can be one of many filesystem supported by Linux". > > > > I don't think that we want to start listing the supported filesystems in > > documentation. > > > > FWIW the description of upper fs isn't uptodate either. > > > > Thanks, > > Amir. > > > > > Hi. > > Yeah, that process might be cumbersome. I guess what you have is good. > Maybe "A wide range of filesystems supported by Linux can be the lower > filesystem, however, not all filesystems that are mountable by Linux have the > features needed for OverlayFS to work" > ? > That sounds good to me. CC the maintainer in case he wants to apply this documentation "patch" himself. Thanks, Amir.
