On Thu, Oct 14, 2010 at 10:07 AM, FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx> wrote: > On Wed, 13 Oct 2010 09:01:43 +0200 > Andi Kleen <andi@xxxxxxxxxxxxxx> wrote: > >> KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx> writes: >> > >> > What this wants to do: >> > Â allocates a contiguous chunk of pages larger than MAX_ORDER. >> > Â for device drivers (camera? etc..) >> >> I think to really move forward you need a concrete use case >> actually implemented in tree. > > As already pointed out, some embeded drivers need physcailly > contignous memory. Currenlty, they use hacky tricks (e.g. playing with > the boot memory allocators). There are several proposals for this like > adding a new kernel memory allocator (from samsung). > > It's ideal if the memory allocator can handle this, I think. Not only contiguous, but sometimes also coherent. -- Felipe Contreras -- 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