> I found that you said retrieving tid first is sufficient to do > things right in old discussion. :)
Right but the tid can be obtained from a different processor. One other aspect of this patchset is that it reduces the cache footprint of the alloc and free functions. This typically results in a performance increase for the allocator. If we can avoid the page_address() and virt_to_head_page() stuff that is required because we drop the ->page field in a sufficient number of places then this may be a benefit that goes beyond the RT and CONFIG_PREEMPT case. -- 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/