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KAMEZAWA Hiroyuki c6830c2260 Fix node_start/end_pfn() definition for mm/page_cgroup.c 
commit 21a3c96 uses node_start/end_pfn(nid) for detection start/end
of nodes. But, it's not defined in linux/mmzone.h but defined in
/arch/???/include/mmzone.h which is included only under
CONFIG_NEED_MULTIPLE_NODES=y.

Then, we see
  mm/page_cgroup.c: In function 'page_cgroup_init':
  mm/page_cgroup.c:308: error: implicit declaration of function 'node_start_pfn'
  mm/page_cgroup.c:309: error: implicit declaration of function 'node_end_pfn'

So, fixiing page_cgroup.c is an idea...

But node_start_pfn()/node_end_pfn() is a very generic macro and
should be implemented in the same manner for all archs.
(m32r has different implementation...)

This patch removes definitions of node_start/end_pfn() in each archs
and defines a unified one in linux/mmzone.h. It's not under
CONFIG_NEED_MULTIPLE_NODES, now.

A result of macro expansion is here (mm/page_cgroup.c)

for !NUMA
 start_pfn = ((&contig_page_data)->node_start_pfn);
  end_pfn = ({ pg_data_t *__pgdat = (&contig_page_data); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;});

for NUMA (x86-64)
  start_pfn = ((node_data[nid])->node_start_pfn);
  end_pfn = ({ pg_data_t *__pgdat = (node_data[nid]); __pgdat->node_start_pfn + __pgdat->node_spanned_pages;});

Changelog:
 - fixed to avoid using "nid" twice in node_end_pfn() macro.

Reported-and-acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Reported-and-tested-by: Ingo Molnar <mingo@elte.hu>
Acked-by: Mel Gorman <mgorman@suse.de>
Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2011-06-27 14:13:09 -07:00
..
asm Fix node_start/end_pfn() definition for mm/page_cgroup.c 2011-06-27 14:13:09 -07:00
cpu-common/cpu
cpu-sh2/cpu sh: Mass ctrl_in/outX to __raw_read/writeX conversion. 2010-01-26 12:58:40 +09:00
cpu-sh2a/cpu
cpu-sh3/cpu sh: Fix up the SH-3 build. 2010-10-07 02:57:39 +09:00
cpu-sh4/cpu sh: sh7724: Add USBHS DMAEngine support 2011-06-16 15:05:46 +09:00
cpu-sh5/cpu
mach-common/mach Fix common misspellings 2011-03-31 11:26:23 -03:00
mach-dreamcast/mach sh: mach-dreamcast: Convert to sparseirq. 2010-02-02 18:01:55 +09:00
mach-ecovec24/mach sh, mmc: Make mmcif_update_progress static inline 2010-11-29 12:54:44 +09:00
mach-kfr2r09/mach sh, mmc: Make mmcif_update_progress static inline 2010-11-29 12:54:44 +09:00
mach-landisk/mach sh: Move init_landisk_IRQ to header file 2011-01-11 12:47:33 +09:00
mach-migor/mach sh: audio support for the sh7722 Migo-R board 2010-03-02 11:08:54 +09:00
mach-sdk7786/mach sh: mach-sdk7786: Handle baseboard NMI source selection. 2010-12-17 18:58:04 +09:00
mach-se/mach sh: mach-se: Convert SE7343 FPGA to dynamic IRQ allocation. 2010-01-12 13:37:04 +09:00
mach-sh03/mach
mach-x3proto/mach sh: mach-x3proto: Support for baseboard GPIOs. 2010-10-04 02:59:29 +09:00