On Thursday, September 21, 2017 11:16:26 PM IST Amir Goldstein wrote: > On Thu, Jul 27, 2017 at 9:24 AM, Chandan Rajendra > <chandan@xxxxxxxxxxxxxxxxxx> wrote: > > On Monday, July 24, 2017 2:47:22 PM IST Chandan Rajendra wrote: > >> For stat(2) on lowerdir non-dir entries in non-samefs case, this commit > >> provides unique values for st_dev. The unique values are obtained by > >> allocating anonymous bdevs for each of the lowerdirs in the overlayfs > >> instance. > >> > >> Signed-off-by: Chandan Rajendra <chandan@xxxxxxxxxxxxxxxxxx> > >> --- > >> Changelog: > >> > >> v2->v3: Optimize away O(n) search for pseudo dev in ovl_get_pseudo_dev(). > >> > >> v1->v2: Drop code that provided unique st_dev across copy up. > >> > > > > I have rebased Amir's "ovl: relax same fs constrain for constant st_ino" > > patch on top of the changes made in this patch. The tree containing > > the rebased patch can be found at > > "https://github.com/chandanr/linux.git rework-anonymous-dev" > > > > I have tested this by executing unionmount-testsuite's "./run --ov --verify". > > > > > Chandan, > > Can you rebase your work on v4.14-rc1? > > You now need to add another patch to relax same fs constrain for > constant d_ino in readdir. > Note that you will also need to relax in ovl_cache_update_ino() > WARN_ON_ONCE(dir->d_sb->s_dev != stat.dev) > > unionmount-testsuite's --verify (non-samefs) does not verify d_ino and > the your constant d_ino xfstest does not cover the non-samefs case. > A new xfstest, a simple variant of your samefs xfstest should be sufficient. > Sure, I will do that and post the patches soon. -- chandan -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
