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x86_64: fix setup_node_bootmem to support big mem excluding with memmap

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typical case: four sockets system, every node has 4g ram, and we are using:

	memmap=10g$4g

to mask out memory on node1 and node2

when numa is enabled, early_node_mem is used to get node_data and node_bootmap.

if it can not get memory from the same node with find_e820_area(), it will
use alloc_bootmem to get buff from previous nodes.

so check it and print out some info about it.

need to move early_res_to_bootmem into every setup_node_bootmem.
and it takes range that node has. otherwise alloc_bootmem could return addr
that reserved early.

depends on "mm: make reserve_bootmem can crossed the nodes".

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-03-18 12:52:37 -07:00 • committed by Ingo Molnar
commit 1a27fc0a42
4 changed files with 47 additions and 13 deletions
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2
include/asm-x86/e820_64.h
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@ -49,7 +49,7 @@ extern void update_e820(void);
extern void reserve_early(unsigned long start, unsigned long end, char *name);
extern void free_early(unsigned long start, unsigned long end);
extern void early_res_to_bootmem(void);
extern void early_res_to_bootmem(unsigned long start, unsigned long end);
#endif/*!__ASSEMBLY__*/