This is a patchset that makes the allocator slow path also lockless like the free paths. However, in the process it is making processing more complex so that this is not a performance improvement. I am going to drop this series unless someone comes up with a bright idea to fix the following performance issues: 1. Had to reduce the per cpu state kept to two words in order to be able to operate without preempt disable / interrupt disable only through cmpxchg_double(). This means that the node information and the page struct location have to be calculated from the free pointer. That is possible but relatively expensive and has to be done frequently in fast paths. 2. If the freepointer becomes NULL then the page struct location can no longer be determined. So per cpu slabs must be deactivated when the last object is retrieved from them causing more regressions. If these issues remain unresolved then I am fine with the way things are right now in slub. Currently interrupts are disabled in the slow paths and then multiple fields in the kmem_cache_cpu structure are modified without regard to instruction atomicity. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>