diff options
Diffstat (limited to 'arch/i386/mm/highmem.c')
-rw-r--r-- | arch/i386/mm/highmem.c | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/arch/i386/mm/highmem.c b/arch/i386/mm/highmem.c index ac70d09df7ee..a1a21abf742e 100644 --- a/arch/i386/mm/highmem.c +++ b/arch/i386/mm/highmem.c | |||
@@ -26,7 +26,7 @@ void kunmap(struct page *page) | |||
26 | * However when holding an atomic kmap is is not legal to sleep, so atomic | 26 | * However when holding an atomic kmap is is not legal to sleep, so atomic |
27 | * kmaps are appropriate for short, tight code paths only. | 27 | * kmaps are appropriate for short, tight code paths only. |
28 | */ | 28 | */ |
29 | void *kmap_atomic(struct page *page, enum km_type type) | 29 | void *kmap_atomic_prot(struct page *page, enum km_type type, pgprot_t prot) |
30 | { | 30 | { |
31 | enum fixed_addresses idx; | 31 | enum fixed_addresses idx; |
32 | unsigned long vaddr; | 32 | unsigned long vaddr; |
@@ -41,12 +41,17 @@ void *kmap_atomic(struct page *page, enum km_type type) | |||
41 | return page_address(page); | 41 | return page_address(page); |
42 | 42 | ||
43 | vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); | 43 | vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); |
44 | set_pte(kmap_pte-idx, mk_pte(page, kmap_prot)); | 44 | set_pte(kmap_pte-idx, mk_pte(page, prot)); |
45 | arch_flush_lazy_mmu_mode(); | 45 | arch_flush_lazy_mmu_mode(); |
46 | 46 | ||
47 | return (void*) vaddr; | 47 | return (void*) vaddr; |
48 | } | 48 | } |
49 | 49 | ||
50 | void *kmap_atomic(struct page *page, enum km_type type) | ||
51 | { | ||
52 | return kmap_atomic_prot(page, type, kmap_prot); | ||
53 | } | ||
54 | |||
50 | void kunmap_atomic(void *kvaddr, enum km_type type) | 55 | void kunmap_atomic(void *kvaddr, enum km_type type) |
51 | { | 56 | { |
52 | unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; | 57 | unsigned long vaddr = (unsigned long) kvaddr & PAGE_MASK; |