On 2021-07-29 16:17:26 [+0200], Vlastimil Babka wrote: > I forgot to point that out in the cover letter, but with v3 this change to > raw_spinlock_t is AFAICS no longer possible (at least with > CONFIG_SLUB_CPU_PARTIAL) because in put_cpu_partial() we now take the local_lock > and it can be called from get_partial_node() which takes the list_lock. I saw increased latency numbers with CONFIG_SLUB_CPU_PARTIAL before it got disabled for other reasons so I'm not too sad if it remains disabled. > Hm but SLUB should never call the page allocator from under list_lock in my series? oh yes. I run into CPU_PARTIAL instead. Sorry for the confusion. So without PARTIAL it says "24,643 CPUs utilized" and no warnings :) Sebastian
