On Thu, 2007-05-17 at 10:29 -0700, Christoph Lameter wrote: > On Thu, 17 May 2007, Peter Zijlstra wrote: > > > I'm really not seeing why you're making such a fuzz about it; normally > > when you push the system this hard we're failing allocations left right > > and center too. Its just that the block IO path has some mempools which > > allow it to write out some (swap) pages and slowly get back to sanity. > > I am weirdly confused by these patches. Among other things you told me > that the performance does not matter since its never (or rarely) being > used (why do it then?).
When we are very low on memory and do access the reserves by means of ALLOC_NO_WATERMARKS, we want to avoid processed that are not entitled to use such memory from running away with the little we have. That is the whole and only point; restrict memory allocated under ALLOC_NO_WATERMARKS to those processes that are entitled to it. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/