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Diffstat (limited to 'arch/um/kernel/tlb.c')
-rw-r--r--arch/um/kernel/tlb.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c
index 429fed2f66b2..ef5a2a20d351 100644
--- a/arch/um/kernel/tlb.c
+++ b/arch/um/kernel/tlb.c
@@ -184,6 +184,9 @@ 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);
@@ -486,9 +489,6 @@ void __flush_tlb_one(unsigned long addr)
static void fix_range(struct mm_struct *mm, unsigned long start_addr,
unsigned long end_addr, int force)
{
- if (!proc_mm && (end_addr > STUB_START))
- end_addr = STUB_START;
-
fix_range_common(mm, start_addr, end_addr, force);
}
@@ -502,8 +502,6 @@ void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
void flush_tlb_mm(struct mm_struct *mm)
{
- unsigned long end;
-
/*
* Don't bother flushing if this address space is about to be
* destroyed.
@@ -511,8 +509,7 @@ void flush_tlb_mm(struct mm_struct *mm)
if (atomic_read(&mm->mm_users) == 0)
return;
- end = proc_mm ? TASK_SIZE : STUB_START;
- fix_range(mm, 0, end, 0);
+ fix_range(mm, 0, TASK_SIZE, 0);
}
void force_flush_all(void)