diff options
Diffstat (limited to 'arch/xtensa/mm/pgtable.c')
-rw-r--r-- | arch/xtensa/mm/pgtable.c | 24 |
1 files changed, 10 insertions, 14 deletions
diff --git a/arch/xtensa/mm/pgtable.c b/arch/xtensa/mm/pgtable.c index e5e119c820e4..7d28914d11cb 100644 --- a/arch/xtensa/mm/pgtable.c +++ b/arch/xtensa/mm/pgtable.c | |||
@@ -14,25 +14,21 @@ | |||
14 | 14 | ||
15 | pte_t* pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) | 15 | pte_t* pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address) |
16 | { | 16 | { |
17 | pte_t *pte, p; | 17 | pte_t *pte = NULL, *p; |
18 | int color = ADDR_COLOR(address); | 18 | int color = ADDR_COLOR(address); |
19 | int i; | 19 | int i; |
20 | 20 | ||
21 | p = (pte_t*) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, COLOR_ORDER); | 21 | p = (pte_t*) __get_free_pages(GFP_KERNEL|__GFP_REPEAT, COLOR_ORDER); |
22 | 22 | ||
23 | if (likely(p)) { | 23 | if (likely(p)) { |
24 | struct page *page; | 24 | split_page(virt_to_page(p), COLOR_ORDER); |
25 | |||
26 | for (i = 0; i < COLOR_SIZE; i++, p++) { | ||
27 | page = virt_to_page(pte); | ||
28 | |||
29 | set_page_count(page, 1); | ||
30 | ClearPageCompound(page); | ||
31 | 25 | ||
26 | for (i = 0; i < COLOR_SIZE; i++) { | ||
32 | if (ADDR_COLOR(p) == color) | 27 | if (ADDR_COLOR(p) == color) |
33 | pte = p; | 28 | pte = p; |
34 | else | 29 | else |
35 | free_page(p); | 30 | free_page(p); |
31 | p += PTRS_PER_PTE; | ||
36 | } | 32 | } |
37 | clear_page(pte); | 33 | clear_page(pte); |
38 | } | 34 | } |
@@ -49,20 +45,20 @@ int flush; | |||
49 | 45 | ||
50 | struct page* pte_alloc_one(struct mm_struct *mm, unsigned long address) | 46 | struct page* pte_alloc_one(struct mm_struct *mm, unsigned long address) |
51 | { | 47 | { |
52 | struct page *page, p; | 48 | struct page *page = NULL, *p; |
53 | int color = ADDR_COLOR(address); | 49 | int color = ADDR_COLOR(address); |
54 | 50 | ||
55 | p = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER); | 51 | p = alloc_pages(GFP_KERNEL | __GFP_REPEAT, PTE_ORDER); |
56 | 52 | ||
57 | if (likely(p)) { | 53 | if (likely(p)) { |
58 | for (i = 0; i < PAGE_ORDER; i++) { | 54 | split_page(p, COLOR_ORDER); |
59 | set_page_count(p, 1); | ||
60 | ClearPageCompound(p); | ||
61 | 55 | ||
62 | if (PADDR_COLOR(page_address(pg)) == color) | 56 | for (i = 0; i < PAGE_ORDER; i++) { |
57 | if (PADDR_COLOR(page_address(p)) == color) | ||
63 | page = p; | 58 | page = p; |
64 | else | 59 | else |
65 | free_page(p); | 60 | __free_page(p); |
61 | p++; | ||
66 | } | 62 | } |
67 | clear_highpage(page); | 63 | clear_highpage(page); |
68 | } | 64 | } |