linux/arch/x86_64/mm
Andi Kleen 485761bd6a [PATCH] x86_64: Tell VM about holes in nodes
Some nodes can have large holes on x86-64.

This fixes problems with the VM allowing too many dirty pages because it
overestimates the number of available RAM in a node.  In extreme cases you
can end up with all RAM filled with dirty pages which can lead to deadlocks
and other nasty behaviour.

This patch just tells the VM about the known holes from e820.  Reserved
(like the kernel text or mem_map) is still not taken into account, but that
should be only a few percent error now.

Small detail is that the flat setup uses the NUMA free_area_init_node() now
too because it offers more flexibility.

(akpm: lotsa thanks to Martin for working this problem out)

Cc: Martin Bligh <mbligh@mbligh.org>
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-08-26 19:37:12 -07:00
..
Makefile [PATCH] reorganize x86-64 NUMA and DISCONTIGMEM config options 2005-06-23 09:45:06 -07:00
extable.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
fault.c [PATCH] x86_64: Don't print exceptions for ltrace 2005-08-19 19:18:47 -07:00
init.c [PATCH] x86_64: Tell VM about holes in nodes 2005-08-26 19:37:12 -07:00
ioremap.c [PATCH] reorganize x86-64 NUMA and DISCONTIGMEM config options 2005-06-23 09:45:06 -07:00
k8topology.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
numa.c [PATCH] x86_64: Tell VM about holes in nodes 2005-08-26 19:37:12 -07:00
pageattr.c Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
srat.c [PATCH] x86_64: fix cpu_to_node setup for sparse apic_ids 2005-07-28 21:46:02 -07:00