ASoC: tlv320aic31xx: Add overflow detection support

[linux.git] / kernel / fork.c

diff --git a/kernel/fork.c b/kernel/fork.c
index ff5037be7771709d12cf75362feb2431a765c9d8..d896e9ca38b0cccc5de00a0564ecd22179fa2c06 100644 (file)
--- a/kernel/fork.c
+++ b/kernel/fork.c
@@ -310,8 +310,9 @@ static struct kmem_cache *mm_cachep;
 
 struct vm_area_struct *vm_area_alloc(struct mm_struct *mm)
 {
-       struct vm_area_struct *vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL);
+       struct vm_area_struct *vma;
 
+       vma = kmem_cache_alloc(vm_area_cachep, GFP_KERNEL);
        if (vma)
                vma_init(vma, mm);
        return vma;
@@ -1301,6 +1302,7 @@ static int copy_mm(unsigned long clone_flags, struct task_struct *tsk)
        tsk->nvcsw = tsk->nivcsw = 0;
 #ifdef CONFIG_DETECT_HUNG_TASK
        tsk->last_switch_count = tsk->nvcsw + tsk->nivcsw;
+       tsk->last_switch_time = 0;
 #endif
 
        tsk->mm = NULL;
@@ -1425,7 +1427,9 @@ static int copy_sighand(unsigned long clone_flags, struct task_struct *tsk)
                return -ENOMEM;
 
        atomic_set(&sig->count, 1);
+       spin_lock_irq(&current->sighand->siglock);
        memcpy(sig->action, current->sighand->action, sizeof(sig->action));
+       spin_unlock_irq(&current->sighand->siglock);
        return 0;
 }