on 2012/11/17 00:35, Eric W. Biederman wrote: > From: "Eric W. Biederman" <[email protected]> > > The expressions tsk->nsproxy->pid_ns and task_active_pid_ns > aka ns_of_pid(task_pid(tsk)) should have the same number of > cache line misses with the practical difference that > ns_of_pid(task_pid(tsk)) is released later in a processes life. > > Furthermore by using task_active_pid_ns it becomes trivial > to write an unshare implementation for the the pid namespace. > > So I have used task_active_pid_ns everywhere I can. > > In fork since the pid has not yet been attached to the > process I use ns_of_pid, to achieve the same effect. > > Signed-off-by: Eric W. Biederman <[email protected]> > ---
Acked-by: Gao feng <[email protected]> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
