arm64: kaslr: support randomized module area with KASAN_VMALLOC

[linux-2.6-microblaze.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index d3171e8..0acc8ed 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -994,6 +994,13 @@ static void mm_init_owner(struct mm_struct *mm, struct task_struct *p)
 #endif
 }
 
+static void mm_init_pasid(struct mm_struct *mm)
+{
+#ifdef CONFIG_IOMMU_SUPPORT
+       mm->pasid = INIT_PASID;
+#endif
+}
+
 static void mm_init_uprobes_state(struct mm_struct *mm)
 {
 #ifdef CONFIG_UPROBES
@@ -1024,6 +1031,7 @@ static struct mm_struct *mm_init(struct mm_struct *mm, struct task_struct *p,
        mm_init_cpumask(mm);
        mm_init_aio(mm);
        mm_init_owner(mm, p);
+       mm_init_pasid(mm);
        RCU_INIT_POINTER(mm->exe_file, NULL);
        mmu_notifier_subscriptions_init(mm);
        init_tlb_flush_pending(mm);
@@ -2436,6 +2444,7 @@ struct task_struct *create_io_thread(int (*fn)(void *), void *arg, int node)
        if (!IS_ERR(tsk)) {
                sigfillset(&tsk->blocked);
                sigdelsetmask(&tsk->blocked, sigmask(SIGKILL));
+               tsk->flags |= PF_NOFREEZE;
        }
        return tsk;
 }