On Fri, 16 May 2014, Vladimir Davydov wrote: > But w/o ref-counting how can we make sure that all kfrees to the cache > we are going to re-parent have been completed so that it can be safely > destroyed? An example: Keep the old structure around until the counter of slabs (partial, full) of that old structure is zero? Move individual slab pages until you reach zero. One can lock out frees by setting c->page = NULL, zapping the partial list and taking the per node list lock. -- 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/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>