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[PATCH] vmscan: use unsigned longs

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Turn basically everything in vmscan.c into `unsigned long'.  This is to avoid
the possibility that some piece of code in there might decide to operate upon
more than 4G (or even 2G) of pages in one hit.

This might be silly, but we'll need it one day.

Cc: Christoph Lameter <clameter@sgi.com>
Cc: Nick Piggin <nickpiggin@yahoo.com.au>
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andrew Morton
2006-03-22 00:08:19 -08:00
committed by Linus Torvalds
parent 179e96395b
commit 69e05944af
3 changed files with 64 additions and 50 deletions
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include/linux/swap.h
+4 -4
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@@ -172,8 +172,8 @@ extern int rotate_reclaimable_page(struct page *page);
extern void swap_setup(void);
/* linux/mm/vmscan.c */
extern int try_to_free_pages(struct zone **, gfp_t);
extern int shrink_all_memory(int);
extern unsigned long try_to_free_pages(struct zone **, gfp_t);
extern unsigned long shrink_all_memory(unsigned long nr_pages);
extern int vm_swappiness;
#ifdef CONFIG_NUMA
@@ -190,11 +190,11 @@ static inline int zone_reclaim(struct zone *z, gfp_t mask, unsigned int order)
#ifdef CONFIG_MIGRATION
extern int isolate_lru_page(struct page *p);
extern int putback_lru_pages(struct list_head *l);
extern unsigned long putback_lru_pages(struct list_head *l);
extern int migrate_page(struct page *, struct page *);
extern void migrate_page_copy(struct page *, struct page *);
extern int migrate_page_remove_references(struct page *, struct page *, int);
extern int migrate_pages(struct list_head *l, struct list_head *t,
extern unsigned long migrate_pages(struct list_head *l, struct list_head *t,
struct list_head *moved, struct list_head *failed);
extern int fail_migrate_page(struct page *, struct page *);
#else