Le lundi 31 mai 2010 à 15:22 +0200, Jan Engelhardt a écrit : > On Monday 2010-05-31 15:13, Eric Dumazet wrote: > > > >All cpus share a single cache line for their 'stackptr' storage, > >introduced in commit f3c5c1bfd4 > > > >This is a stable candidate (2.6.34) > > Stackptr was first introduced for 2.6.35-rcX. > Indeed, I was fooled by 'git describe' > >+ i->stackptr = alloc_percpu(unsigned int); > > if (i->stackptr == NULL) > > return -ENOMEM; > >- memset(i->stackptr, 0, size); > > > > size = sizeof(void **) * nr_cpu_ids; > > if (size > PAGE_SIZE) > > Are alloc_percpu areas cleared? > Yes, allocated chunks are cleared. -- To unsubscribe from this list: send the line "unsubscribe netfilter" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
