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| author | Nick Piggin <npiggin@suse.de> | 2006-03-22 00:08:41 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-03-22 07:54:02 -0800 |
| commit | 17cf44064ae744f081309108fa67f0e942b10167 (patch) | |
| tree | 9073ac7498b559f5d0d36843e305a39eecc6436b /mm/page_alloc.c | |
| parent | 7835e98b2e3c66dba79cb0ff8ebb90a2fe030c29 (diff) | |
| download | kernel_samsung_tuna-17cf44064ae744f081309108fa67f0e942b10167.zip kernel_samsung_tuna-17cf44064ae744f081309108fa67f0e942b10167.tar.gz kernel_samsung_tuna-17cf44064ae744f081309108fa67f0e942b10167.tar.bz2 | |
[PATCH] mm: cleanup prep_ stuff
Move the prep_ stuff into prep_new_page.
Signed-off-by: Nick Piggin <npiggin@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'mm/page_alloc.c')
| -rw-r--r-- | mm/page_alloc.c | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/mm/page_alloc.c b/mm/page_alloc.c index 7f65b5a..bdff858 100644 --- a/mm/page_alloc.c +++ b/mm/page_alloc.c @@ -212,6 +212,15 @@ static void destroy_compound_page(struct page *page, unsigned long order) } } +static inline void prep_zero_page(struct page *page, int order, gfp_t gfp_flags) +{ + int i; + + BUG_ON((gfp_flags & (__GFP_WAIT | __GFP_HIGHMEM)) == __GFP_HIGHMEM); + for (i = 0; i < (1 << order); i++) + clear_highpage(page + i); +} + /* * function for dealing with page's order in buddy system. * zone->lock is already acquired when we use these. @@ -496,7 +505,7 @@ static inline void expand(struct zone *zone, struct page *page, /* * This page is about to be returned from the page allocator */ -static int prep_new_page(struct page *page, int order) +static int prep_new_page(struct page *page, int order, gfp_t gfp_flags) { if (unlikely(page_mapcount(page) | (page->mapping != NULL) | @@ -527,6 +536,13 @@ static int prep_new_page(struct page *page, int order) set_page_private(page, 0); set_page_refcounted(page); kernel_map_pages(page, 1 << order, 1); + + if (gfp_flags & __GFP_ZERO) + prep_zero_page(page, order, gfp_flags); + + if (order && (gfp_flags & __GFP_COMP)) + prep_compound_page(page, order); + return 0; } @@ -732,15 +748,6 @@ void fastcall free_cold_page(struct page *page) free_hot_cold_page(page, 1); } -static inline void prep_zero_page(struct page *page, int order, gfp_t gfp_flags) -{ - int i; - - BUG_ON((gfp_flags & (__GFP_WAIT | __GFP_HIGHMEM)) == __GFP_HIGHMEM); - for(i = 0; i < (1 << order); i++) - clear_highpage(page + i); -} - /* * split_page takes a non-compound higher-order page, and splits it into * n (1<<order) sub-pages: page[0..n] @@ -802,14 +809,8 @@ again: put_cpu(); BUG_ON(bad_range(zone, page)); - if (prep_new_page(page, order)) + if (prep_new_page(page, order, gfp_flags)) goto again; - - if (gfp_flags & __GFP_ZERO) - prep_zero_page(page, order, gfp_flags); - - if (order && (gfp_flags & __GFP_COMP)) - prep_compound_page(page, order); return page; failed: |