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[PATCH] SwapMig: Extend parameters for migrate_pages()

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Extend the parameters of migrate_pages() to allow the caller control over the
fate of successfully migrated or impossible to migrate pages.

Swap migration and direct migration will have the same interface after this
patch so that patches can be independently applied to the policy layer and the
core migration code.

Signed-off-by: Christoph Lameter <clameter@sgi.com>
Cc: Andi Kleen <ak@muc.de>
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 01:00:55 -08:00
committed by Linus Torvalds
parent ee27497df3
commit d498471133
3 changed files with 32 additions and 15 deletions
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3
include/linux/swap.h
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@@ -178,7 +178,8 @@ extern int vm_swappiness;
#ifdef CONFIG_MIGRATION
extern int isolate_lru_page(struct page *p);
extern int putback_lru_pages(struct list_head *l);
extern int migrate_pages(struct list_head *l, struct list_head *t);
extern int migrate_pages(struct list_head *l, struct list_head *t,
struct list_head *moved, struct list_head *failed);
#endif
#ifdef CONFIG_MMU