diff options
Diffstat (limited to 'mm')
| -rw-r--r-- | mm/mempolicy.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/mm/mempolicy.c b/mm/mempolicy.c index c6c61ea6bb8..8924aaf4665 100644 --- a/mm/mempolicy.c +++ b/mm/mempolicy.c @@ -1262,7 +1262,7 @@ asmlinkage long compat_sys_mbind(compat_ulong_t start, compat_ulong_t len, * @task != current]. It is the caller's responsibility to * free the reference in these cases. */ -static struct mempolicy * get_vma_policy(struct task_struct *task, +static struct mempolicy *get_vma_policy(struct task_struct *task, struct vm_area_struct *vma, unsigned long addr) { struct mempolicy *pol = task->mempolicy; @@ -1270,7 +1270,10 @@ static struct mempolicy * get_vma_policy(struct task_struct *task, if (vma) { if (vma->vm_ops && vma->vm_ops->get_policy) { - pol = vma->vm_ops->get_policy(vma, addr); + struct mempolicy *vpol = vma->vm_ops->get_policy(vma, + addr); + if (vpol) + pol = vpol; shared_pol = 1; /* if pol non-NULL, add ref below */ } else if (vma->vm_policy && vma->vm_policy->policy != MPOL_DEFAULT) |