Hello, Li. On Wed, Jan 23, 2013 at 10:34:53AM +0800, Li Zefan wrote: > Scheduler changes made in patch #2 are preparation for #3 and #4. > > - for #3: > > After ss->css_alloc(), there's a small window that tg->css.cgroup is NULL. > With the change, tg won't be seen before ss->css_online(), so the scheduler > won't see NULL tg->css.cgroup. > > - for #4: > > If tg is unregistered and removed from global list in css_free(), and if > we kfree cgroup right after ss->css_free(), the scheduler can access > invalid tg->css.cgroup, because tg is also protected by RCU.
Can you please incorporate the above into the patch descriptions? Thanks! -- tejun -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
