On Fri, 2010-11-19 at 00:06 +0800, Wu Fengguang wrote: > On Fri, Nov 19, 2010 at 12:02:01AM +0800, Peter Zijlstra wrote: > > On Thu, 2010-11-18 at 23:44 +0800, Wu Fengguang wrote: > > > + pause = HZ * pages_dirtied / (bw + 1); > > > > Shouldn't that be using something like div64_u64 ? > > OK, but a dumb question: gcc cannot handle this implicitly? it could, but we chose not to implement the symbol it emits for these things so as to cause pain.. that was still assuming the world of 32bit computing was relevant and 64bit divides were expensive ;-) -- 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/ . Fight unfair telecom policy in Canada: sign http://dissolvethecrtc.ca/ Don't email: <a href