diff options
Diffstat (limited to 'arch/um/kernel/tlb.c')
| -rw-r--r-- | arch/um/kernel/tlb.c | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index 5be1b0da9f3b..bc38f79ca3a3 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c @@ -125,9 +125,6 @@ static int add_mmap(unsigned long virt, unsigned long phys, unsigned long len, struct host_vm_op *last; int fd = -1, ret = 0; - if (virt + len > STUB_START && virt < STUB_END) - return -EINVAL; - if (hvc->userspace) fd = phys_mapping(phys, &offset); else @@ -165,9 +162,6 @@ static int add_munmap(unsigned long addr, unsigned long len, struct host_vm_op *last; int ret = 0; - if (addr + len > STUB_START && addr < STUB_END) - return -EINVAL; - if (hvc->index != 0) { last = &hvc->ops[hvc->index - 1]; if ((last->type == MUNMAP) && @@ -195,9 +189,6 @@ static int add_mprotect(unsigned long addr, unsigned long len, struct host_vm_op *last; int ret = 0; - if (addr + len > STUB_START && addr < STUB_END) - return -EINVAL; - if (hvc->index != 0) { last = &hvc->ops[hvc->index - 1]; if ((last->type == MPROTECT) && @@ -232,9 +223,6 @@ static inline int update_pte_range(pmd_t *pmd, unsigned long addr, pte = pte_offset_kernel(pmd, addr); do { - if ((addr >= STUB_START) && (addr < STUB_END)) - continue; - r = pte_read(*pte); w = pte_write(*pte); x = pte_exec(*pte); @@ -478,9 +466,6 @@ void flush_tlb_page(struct vm_area_struct *vma, unsigned long address) address &= PAGE_MASK; - if (address >= STUB_START && address < STUB_END) - goto kill; - pgd = pgd_offset(mm, address); if (!pgd_present(*pgd)) goto kill; |