de0f898e39
This is kernel config available in RHEL7.4 based kernels that enables mountpoint removal where the mountpoint exists in other namespaces. In particular this is important for making this pattern work: ``` umount -l /some/path rm -r /some/path ``` Where `/some/path` exists in another mount namespace. Setting this value will prevent `device or resource busy` errors when attempting to the removal of `/some/path` in the example. This setting is the default, and non-configurable, on upstream kernels since 3.15. Signed-off-by: Brian Goff <cpuguy83@gmail.com> Upstream-commit: 83c2152de503012195bd26069fd8fbd2dea4b32f Component: engine