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mm, x86: shrink_active_range() should check all

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Now we are using register_e820_active_regions() instead of
add_active_range() directly. So end_pfn could be different between the
value in early_node_map to node_end_pfn.

So we need to make shrink_active_range() smarter.

shrink_active_range() is a generic MM function in mm/page_alloc.c but
it is only used on 32-bit x86. Should we move it back to some file in
arch/x86?

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Yinghai Lu 2008-06-08 19:39:16 -07:00 • committed by Ingo Molnar
parent db3660c190
commit cc1a9d86ce
3 changed files with 37 additions and 14 deletions
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3
include/linux/mm.h
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@ -997,8 +997,7 @@ extern void free_area_init_node(int nid, pg_data_t *pgdat,
extern void free_area_init_nodes(unsigned long *max_zone_pfn);
extern void add_active_range(unsigned int nid, unsigned long start_pfn,
unsigned long end_pfn);
extern void shrink_active_range(unsigned int nid, unsigned long old_end_pfn,
unsigned long new_end_pfn);
extern void shrink_active_range(unsigned int nid, unsigned long new_end_pfn);
extern void push_node_boundaries(unsigned int nid, unsigned long start_pfn,
unsigned long end_pfn);
extern void remove_all_active_ranges(void);