On Tue, Jul 10, 2007 at 12:11:45PM -0500, Dave McCracken wrote: > Ok, maybe disaster is too strong a word. But any kind of order>0 allocation > still has to be approached with fear and caution, with a well tested fallback > in the case of the inevitable failures. How many driver writers would have > benefited from using order>0 pages, but turned aside to other less optimal > solutions due to their unreliability? We don't know, and probably never > will. Those people have moved on and won't revisit that design decision.
If you look at almost any other OS they use high-order pages quite a lot. At least Solaris, IRIX and UnixWare do. Also not that once we have a high-order pagecache it gives a nice way to simply reclaim a high-order page directly :) - 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/