On Wed, Apr 25, 2018 at 4:49 PM, J. R. Okajima <hooanon05g@xxxxxxxxx> wrote: > Miklos Szeredi: >> This patch series reverts the VFS hacks (with the exception of d_path) and > > I totally agree with removing d_real things. > It must be good to the world. > > If I understand correctly, this series affects file_inode() too. > So there may exist more commits to revert such as > fea6d2a6 2017-02-14 vfs: Use upper filesystem inode in bprm_fill_uid() Yep. > > Here is another question. > Does overlayfs support atomic_open? No. Overlayfs doesn't support network filesystems as modifiable (upper) layer, and that's where atomic_open makes sense. I think actually no filesystem that defines atomic_open() can be used as upper layer. So that's currently not a worry. If it turns out to be a requirement to use such filesystem as upper, then I'll worry about atomic_open(). Thanks, Miklos
