On Mon, 23 Jun 2008 15:31:04 +0300 Eduard - Gabriel Munteanu <eduard.munteanu@xxxxxxxxxxx> wrote: > Allows one to create and use a channel with no associated files. Files > can be initialized later. This is useful in scenarios such as logging > in early code, before VFS is up. Therefore, such channels can be > created and used as soon as kmem_cache_init() completed. > > This is needed by kmemtrace to do tracing in early kernel code. This breaks on sparc64. > + err = smp_call_function_single(i, > + __relay_set_buf_dentry, > + &disp, 0, 1); Because that ain't implemented. There's a call in net/iucv/iucv.c, but that's s390-only. There's a call in virt/kvm/kvm_main.c. There's a call in kernel/time/tick-broadcast.c, so I assume that the intersection between CONFIG_GENERIC_CLOCKEVENTS_BROADCAST and non-smp_call_function_single() architectures is presently empty. I guess all SMP-capable architectures should now implement this, please. It is presently defined on all architectures for CONFIG_SMP=n and it is declared in include/linux/smp.h. -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
