Hi Trond, There is regression in the upstream code, it leaves dangling DS mounts. Problem didn't exist in 4.9 and appeared in 4.10. Simple test is : mount, echo 1 > /mnt/foobar, unmount /mnt. Watch the DS mount keep going. The last commit at which the code works is: fe1cf9469d7 "pNFS: Clear all layout segment state in pnfs_mark_layout_stateaid_invalid". Applying commit 24408f5282 "pNFS: Fix bugs in _pnfs_return_layout" introduces the problem. >From what I can tell the code is either missing setting NFS_LAYOUT_RETURN_REQUESTED somewhere but I'm not sure. Or if the intent was to just never return the layout even on the unmount, then we need to drop the ref count on the layout here so that unmount can proceed. Can you clarify what should be happening here (or maybe something else entirely)? Thank you. -- To unsubscribe from this list: send the line "unsubscribe linux-nfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
