]> nv-tegra.nvidia Code Review - linux-2.6.git/commit
IA64: SPARSEMEM_VMEMMAP 16K page size support
authorChristoph Lameter <clameter@sgi.com>
Tue, 16 Oct 2007 08:24:15 +0000 (01:24 -0700)
committerLinus Torvalds <torvalds@woody.linux-foundation.org>
Tue, 16 Oct 2007 16:42:51 +0000 (09:42 -0700)
commitef229c5a5e7701ab08a6a06258f415b150348bcc
tree606a128b3408ca39b95e1bdd93ad17dd2a9d9f33
parent0889eba5b38f66d7d892a167d88284daddd3d43b
IA64: SPARSEMEM_VMEMMAP 16K page size support

Equip IA64 sparsemem with a virtual memmap.  This is similar to the existing
CONFIG_VIRTUAL_MEM_MAP functionality for DISCONTIGMEM.  It uses a PAGE_SIZE
mapping.

This is provided as a minimally intrusive solution.  We split the 128TB
VMALLOC area into two 64TB areas and use one for the virtual memmap.

This should replace CONFIG_VIRTUAL_MEM_MAP long term.

[apw@shadowen.org: convert to new helper based initialisation]
Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andy Whitcroft <apw@shadowen.org>
Acked-by: Mel Gorman <mel@csn.ul.ie>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
arch/ia64/Kconfig
arch/ia64/mm/discontig.c
include/asm-ia64/pgtable.h