On Fri, Jun 8, 2012 at 6:55 AM, KOSAKI Motohiro <kosaki.motohiro@xxxxxxxxx> wrote: >> For some cases, yes, but probably not for all. >> >> For example, if userspace doesn't know about "about to swap real soon" >> condition, it can continue to grow its caches making >> fallocate(VOLATILE) pretty much useless. > > Fair enough. But, Please consider your scenario don't need vmevent(2), > cat /proc/meminfo works enough. Only dropping activity need a quick work > and just in time notification. cache growing limitation don't need. Why do you keep bringing this up? Yes, you might get away with polling /proc/meminfo or /proc/vmstat for some specific cases. It does not make it a proper generic solution to the problem "vmevent" ABI tries to address. -- 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>