On Thu, Aug 26, 2010 at 1:06 PM, Minchan Kim <minchan.kim@xxxxxxxxx> wrote: > On Thu, Aug 26, 2010 at 12:44 PM, KAMEZAWA Hiroyuki > <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote: >> On Thu, 26 Aug 2010 11:50:17 +0900 >> KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> wrote: >> >>> 128MB...too big ? But it's depend on config. >>> >>> IBM's ppc guys used 16MB section, and recently, a new interface to shrink >>> the number of /sys files are added, maybe usable. >>> >>> Something good with this approach will be you can create "cma" memory >>> before installing driver. >>> >>> But yes, complicated and need some works. >>> >> Ah, I need to clarify what I want to say. >> >> With compaction, it's helpful, but you can't get contiguous memory larger >> than MAX_ORDER, I think. To get memory larger than MAX_ORDER on demand, >> memory hot-plug code has almost all necessary things. > > True. Doesn't patch's idea of Christoph helps this ? > http://lwn.net/Articles/200699/ Of course, It itself can't meet our requirement but idea of range allocation seem to be good. I think it can be start point. > > -- > Kind regards, > Minchan Kim > -- Kind regards, Minchan Kim -- 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=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>