On Wed, 2008-12-17 at 11:55 -0600, Serge E. Hallyn wrote: > -void free_ipc_ns(struct kref *kref) > +void put_ipc_ns(struct ipc_namespace *ns) > { > - struct ipc_namespace *ns; > + if (ns && atomic_dec_and_lock(&ns->count, &mq_lock)) { > + mq_clear_sbinfo(ns); > + spin_unlock(&mq_lock); > + mq_put_mnt(ns); > + free_ipc_ns(ns); > + } > +} OK, I see now why you wanted to remove the kref and add an atomic_t. That's probably worth a sentence in the patch description. I know that atomic_dec_and_lock() can be a nice logical thing to do, but is it necessary here? Basically, is there something that happens under mq_lock that can re-raise the ns->count? -- Dave _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/containers