On Tue, Aug 08, 2006 at 10:17:53AM +0200, Martin Schwidefsky wrote:
> "vmalloc reserve first; allocate pages later" would be a really nice
> feature. We could use this on s390 to implement the virtual mem_map
> array spanning the whole 64 bit address range (with holes in it). To
> make it perfect a "deallocate pages; keep vmalloc reserve" should be
> added, then we could free parts of the mem_map array again on hot memory
> remove.
IA-64 already has some arch. specific code to allocate a sparse
virtual memory map ... having generic code to do so would be
nice, but I foresee some chicken&egg problems in getting enough
of the vmalloc/vmap framework up & running before mem_map[] has
been allocated.
That and the hotplug memory folks don't like the virtual mem_map
code and have spurned it in favour of SPARSE.
-Tony
-
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/
[Index of Archives]
[Kernel Newbies]
[Netfilter]
[Bugtraq]
[Photo]
[Stuff]
[Gimp]
[Yosemite News]
[MIPS Linux]
[ARM Linux]
[Linux Security]
[Linux RAID]
[Video 4 Linux]
[Linux for the blind]
[Linux Resources]
