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ARM: 6106/1: Implement copy_to_user_page() for noMMU

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Commit 7959722 introduced calls to copy_(to|from)_user_page() from
access_process_vm() in mm/nommu.c. The copy_to_user_page() was not
implemented on noMMU ARM.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Catalin Marinas
2010-05-06 15:15:28 +01:00
committed by Russell King
parent b1a9ceb2e0
commit b5a07faade
1 changed files with 9 additions and 0 deletions
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9
arch/arm/mm/nommu.c
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@@ -65,6 +65,15 @@ void flush_dcache_page(struct page *page)
} }
EXPORT_SYMBOL(flush_dcache_page); EXPORT_SYMBOL(flush_dcache_page);
void copy_to_user_page(struct vm_area_struct *vma, struct page *page,
unsigned long uaddr, void *dst, const void *src,
unsigned long len)
{
memcpy(dst, src, len);
if (vma->vm_flags & VM_EXEC)
__cpuc_coherent_user_range(uaddr, uaddr + len);
}
void __iomem *__arm_ioremap_pfn(unsigned long pfn, unsigned long offset, void __iomem *__arm_ioremap_pfn(unsigned long pfn, unsigned long offset,
size_t size, unsigned int mtype) size_t size, unsigned int mtype)
{ {