On Mon, Apr 24, 2017 at 12:14:05PM +0300, Amir Goldstein wrote: > Miklos, > > Following your comments on the 'stable inodes' series from last week, > this series fixes constant inode numbers for stat(2) with any layer > configuration. > > For the case of all *lower* layers on same fs that supports NFS export, > redirect by file handle will be used to optimize the lookup of the copy > up origin of non-dir inode. > > For the case of *all* layers on same fs, overlayfs also gains: > - Persistent inode numbers for directories > - Correct results for du -x > > Consistcy of stat(2) st_ino with readdir(3) d_ino is NOT addressed by > this series. It will be addressed for the 'samefs' configuration by the > follow up 'stable inode' work, which is also going to address preserving > hardlinks on copy up. Hi Amir, We need to update Documentation/filesystems/overlayfs.txt as well to reflect new semantics of reporting st_dev and st_ino? Vivek
