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| author | Akinobu Mita <akinobu.mita@gmail.com> | 2009-03-11 17:33:18 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-11 17:47:46 +0300 |
| commit | bb6d59ca927d855ffac567b35c0a790c67016103 (patch) | |
| tree | cbfa2c1b8fd85c1ed93d077625a2e15b5b8a8ea9 /arch/x86/mm/iomap_32.c | |
| parent | 78b020d035074fc3aa4d017353bb2c32e2aff56f (diff) | |
| download | linux-bb6d59ca927d855ffac567b35c0a790c67016103.tar.xz | |
x86: unify kmap_atomic_pfn() and iomap_atomic_prot_pfn()
kmap_atomic_pfn() and iomap_atomic_prot_pfn() are almost same
except pgprot. This patch removes the code duplication for these
two functions.
Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
LKML-Reference: <20090311143317.GA22244@localhost.localdomain>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/mm/iomap_32.c')
| -rw-r--r-- | arch/x86/mm/iomap_32.c | 13 |
1 files changed, 2 insertions, 11 deletions
diff --git a/arch/x86/mm/iomap_32.c b/arch/x86/mm/iomap_32.c index 04102d42ff42..592984e5496b 100644 --- a/arch/x86/mm/iomap_32.c +++ b/arch/x86/mm/iomap_32.c @@ -18,6 +18,7 @@ #include <asm/iomap.h> #include <asm/pat.h> +#include <asm/highmem.h> #include <linux/module.h> int is_io_mapping_possible(resource_size_t base, unsigned long size) @@ -36,11 +37,6 @@ EXPORT_SYMBOL_GPL(is_io_mapping_possible); void * iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot) { - enum fixed_addresses idx; - unsigned long vaddr; - - pagefault_disable(); - /* * For non-PAT systems, promote PAGE_KERNEL_WC to PAGE_KERNEL_UC_MINUS. * PAGE_KERNEL_WC maps to PWT, which translates to uncached if the @@ -50,12 +46,7 @@ iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot) if (!pat_enabled && pgprot_val(prot) == pgprot_val(PAGE_KERNEL_WC)) prot = PAGE_KERNEL_UC_MINUS; - idx = type + KM_TYPE_NR*smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); - set_pte(kmap_pte-idx, pfn_pte(pfn, prot)); - arch_flush_lazy_mmu_mode(); - - return (void*) vaddr; + return kmap_atomic_prot_pfn(pfn, type, prot); } EXPORT_SYMBOL_GPL(iomap_atomic_prot_pfn); |