diff options
| -rw-r--r-- | arch/um/kernel/tlb.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/arch/um/kernel/tlb.c b/arch/um/kernel/tlb.c index b7f7a60a0928..9ca902df243a 100644 --- a/arch/um/kernel/tlb.c +++ b/arch/um/kernel/tlb.c @@ -520,6 +520,13 @@ pte_t *addr_pte(struct task_struct *task, unsigned long addr) void flush_tlb_all(void) { + /* + * Don't bother flushing if this address space is about to be + * destroyed. + */ + if (atomic_read(¤t->mm->mm_users) == 0) + return; + flush_tlb_mm(current->mm); } @@ -541,6 +548,13 @@ 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) { + /* + * Don't bother flushing if this address space is about to be + * destroyed. + */ + if (atomic_read(&mm->mm_users) == 0) + return; + fix_range_common(mm, start_addr, end_addr, force); } @@ -556,13 +570,6 @@ EXPORT_SYMBOL(flush_tlb_range); void flush_tlb_mm_range(struct mm_struct *mm, unsigned long start, unsigned long end) { - /* - * Don't bother flushing if this address space is about to be - * destroyed. - */ - if (atomic_read(&mm->mm_users) == 0) - return; - fix_range(mm, start, end, 0); } |