On Tue, May 22, 2018 at 8:35 PM, Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote: > On Tue, May 22, 2018 at 08:33:24PM -0700, Y Song wrote: >> + struct cgroup *cgrp = task_dfl_cgroup(current); >> + if (!cgrp) >> + return -EINVAL; > > why this check is needed? No reason :-) Originally I am concerned whether it is possible cgrp could be NULL. By looking at the code, it SEEMS to me that it could not be NULL, but I am not 100% sure (as I am not a cgroup expert). Since you are asking, probably means it cannot be NULL, so will remove it in formal upstream patch. -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
