linux/arch/ia64
Bob Picco 139b830477 [IA64] register memory ranges in a consistent manner
While pursuing and unrelated issue with 64Mb granules I noticed a problem
related to inconsistent use of add_active_range.  There doesn't appear any
reason to me why FLATMEM versus DISCONTIG_MEM should register memory to
add_active_range with different code.  So I've changed the code into a
common implementation.

The other subtle issue fixed by this patch was calling add_active_range in
count_node_pages before granule aligning is performed.  We were lucky with
16MB granules but not so with 64MB granules.  count_node_pages has reserved
regions filtered out and as a consequence linked kernel text and data
aren't covered by calls to count_node_pages.  So linked kernel regions
wasn't reported to add_active_regions.  This resulted in free_initmem
causing numerous bad_page reports.  This won't occur with this patch
because now all known memory regions are reported by
register_active_ranges.

Acked-by: Mel Gorman <mel@csn.ul.ie>
Signed-off-by: Bob Picco <bob.picco@hp.com>
Acked-by: Simon Horman <horms@verge.net.au>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Tony Luck <tony.luck@intel.com>
2007-02-05 15:07:47 -08:00
..
configs [IA64] update sn2_defconfig 2006-10-17 14:55:45 -07:00
dig [PATCH] tty: Remove include of screen_info.h from tty.h 2006-07-10 13:24:16 -07:00
hp [IA64] s/termios/ktermios/ in simserial.c 2006-12-12 10:47:36 -08:00
ia32 [PATCH] struct path: convert ia64 2006-12-08 08:28:45 -08:00
kernel [IA64] Clear IRQ affinity when unregistered 2007-02-05 14:09:51 -08:00
lib [IA64] tidy up return value of ip_fast_csum 2006-12-07 11:19:59 -08:00
mm [IA64] register memory ranges in a consistent manner 2007-02-05 15:07:47 -08:00
oprofile Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
pci [IA64] replace kmalloc+memset with kzalloc 2006-12-07 13:46:43 -08:00
scripts Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
sn [IA64-SGI] Check for TIO errors on shub2 Altix 2007-02-05 14:27:54 -08:00
defconfig [PATCH] sgiioc4: Always share IRQ 2006-07-31 13:28:40 -07:00
install.sh Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
Kconfig [IA64] Enable SWIOTLB only when needed 2007-02-05 14:33:08 -08:00
Kconfig.debug [PATCH] Move Kprobes and Oprofile to "Instrumentation Support" menu 2005-11-07 07:53:35 -08:00
Makefile [IA64] add vmlinuz target 2006-06-21 14:31:07 -07:00
module.lds Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00