On Tue, 2010-08-24 at 16:35 +0900, KAMEZAWA Hiroyuki wrote: > On Tue, 24 Aug 2010 16:24:27 +0900 > KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote: > > > And Is it documented that kmap_atomic shouln't be used under NMI or something > > special interrupts ? > > > Sorry, I missed something..Maybe not trouble. In particular, we actually do use kmap_atomic from NMI context ;-) It only relies on preempt_disable(), which for now is implied by pagefault_disable(), if at some point those get split kmap_atomic will need to do both (currently only PREEMPT_RT splits it, but then that has a totally different kmap implementation too). -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxxx For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href