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authorLee Schermerhorn <Lee.Schermerhorn@hp.com>2009-12-14 17:59:54 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2009-12-15 08:53:23 -0800
commit418b27ef50e7e9b0c2fbd88db804bf065e5eb1a6 (patch)
tree24a4354bfa3bda6c763b859c235669c939c97ce4 /mm
parent4eb2b1dcd598f8489130405c81c60c289896d92a (diff)
mm: remove unevictable_migrate_page function
unevictable_migrate_page() in mm/internal.h is a relic of the since removed UNEVICTABLE_LRU Kconfig option. This patch removes the function and open codes the test in migrate_page_copy(). Signed-off-by: Lee Schermerhorn <lee.schermerhorn@hp.com> Reviewed-by: Christoph Lameter <cl@linux-foundation.org> Acked-by: Hugh Dickins <hugh.dickins@tiscali.co.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'mm')
-rw-r--r--mm/internal.h12
-rw-r--r--mm/migrate.c4
2 files changed, 2 insertions, 14 deletions
diff --git a/mm/internal.h b/mm/internal.h
index a4b927cdca0..4fe67a162cb 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -63,18 +63,6 @@ static inline unsigned long page_order(struct page *page)
return page_private(page);
}
-/*
- * unevictable_migrate_page() called only from migrate_page_copy() to
- * migrate unevictable flag to new page.
- * Note that the old page has been isolated from the LRU lists at this
- * point so we don't need to worry about LRU statistics.
- */
-static inline void unevictable_migrate_page(struct page *new, struct page *old)
-{
- if (TestClearPageUnevictable(old))
- SetPageUnevictable(new);
-}
-
#ifdef CONFIG_MMU
extern long mlock_vma_pages_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end);
diff --git a/mm/migrate.c b/mm/migrate.c
index 2a0ea3ef509..efddbf0926b 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -288,8 +288,8 @@ static void migrate_page_copy(struct page *newpage, struct page *page)
if (TestClearPageActive(page)) {
VM_BUG_ON(PageUnevictable(page));
SetPageActive(newpage);
- } else
- unevictable_migrate_page(newpage, page);
+ } else if (TestClearPageUnevictable(page))
+ SetPageUnevictable(newpage);
if (PageChecked(page))
SetPageChecked(newpage);
if (PageMappedToDisk(page))