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Diffstat (limited to 'arch/um/kernel/tt/tlb.c')
-rw-r--r--arch/um/kernel/tt/tlb.c36
1 files changed, 0 insertions, 36 deletions
diff --git a/arch/um/kernel/tt/tlb.c b/arch/um/kernel/tt/tlb.c
index f1d85dbb45b..ae6217c8613 100644
--- a/arch/um/kernel/tt/tlb.c
+++ b/arch/um/kernel/tt/tlb.c
@@ -74,42 +74,6 @@ void flush_tlb_kernel_range_tt(unsigned long start, unsigned long end)
atomic_inc(&vmchange_seq);
}
-static void protect_vm_page(unsigned long addr, int w, int must_succeed)
-{
- int err;
-
- err = protect_memory(addr, PAGE_SIZE, 1, w, 1, must_succeed);
- if(err == 0) return;
- else if((err == -EFAULT) || (err == -ENOMEM)){
- flush_tlb_kernel_range(addr, addr + PAGE_SIZE);
- protect_vm_page(addr, w, 1);
- }
- else panic("protect_vm_page : protect failed, errno = %d\n", err);
-}
-
-void mprotect_kernel_vm(int w)
-{
- struct mm_struct *mm;
- pgd_t *pgd;
- pud_t *pud;
- pmd_t *pmd;
- pte_t *pte;
- unsigned long addr;
-
- mm = &init_mm;
- for(addr = start_vm; addr < end_vm;){
- pgd = pgd_offset(mm, addr);
- pud = pud_offset(pgd, addr);
- pmd = pmd_offset(pud, addr);
- if(pmd_present(*pmd)){
- pte = pte_offset_kernel(pmd, addr);
- if(pte_present(*pte)) protect_vm_page(addr, w, 0);
- addr += PAGE_SIZE;
- }
- else addr += PMD_SIZE;
- }
-}
-
void flush_tlb_kernel_vm_tt(void)
{
flush_tlb_kernel_range(start_vm, end_vm);