Quoting Cedric Le Goater (clg at fr.ibm.com): > If the kernel is not configured with the CONFIG_UTS_NS, unshare of > ipc namespace will fail and return -EINVAL. > > The patch changes the dummy unshare_utsname() to check the clone flags > before returning. > > Signed-off-by: Cedric Le Goater <clg at fr.ibm.com> Acked-by: Serge E. Hallyn <serue at us.ibm.com> thanks, -serge > Cc: Andrew Morton <akpm at osdl.org> > Cc: Serge E. Hallyn <serue at us.ibm.com> > Cc: Linux Containers <containers at lists.osdl.org> > > --- > include/linux/utsname.h | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > Index: 2.6.18-rc6-mm2/include/linux/utsname.h > =================================================================== > --- 2.6.18-rc6-mm2.orig/include/linux/utsname.h > +++ 2.6.18-rc6-mm2/include/linux/utsname.h > @@ -60,8 +60,12 @@ static inline void put_uts_ns(struct uts > static inline int unshare_utsname(unsigned long unshare_flags, > struct uts_namespace **new_uts) > { > - return -EINVAL; > + if (unshare_flags & CLONE_NEWUTS) > + return -EINVAL; > + > + return 0; > } > + > static inline int copy_utsname(int flags, struct task_struct *tsk) > { > return 0;