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[PATCH] Swap Migration V5: Add CONFIG_MIGRATION for page migration support

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Include page migration if the system is NUMA or having a memory model that
allows distinct areas of memory (SPARSEMEM, DISCONTIGMEM).

And:
- Only include lru_add_drain_per_cpu if building for an SMP system.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Christoph Lameter 2006-01-08 01:00:49 -08:00 • committed by Linus Torvalds
commit 7cbe34cf86
3 changed files with 20 additions and 9 deletions
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2
include/linux/swap.h
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@ -178,7 +178,9 @@ extern int vm_swappiness;
extern int isolate_lru_page(struct page *p);
extern int putback_lru_pages(struct list_head *l);
#ifdef CONFIG_MIGRATION
extern int migrate_pages(struct list_head *l, struct list_head *t);
#endif
#ifdef CONFIG_MMU
/* linux/mm/shmem.c */