Merge remote-tracking branches 'asoc/topic/inntel', 'asoc/topic/input', 'asoc/topic...

[mirror_ubuntu-bionic-kernel.git] / drivers / dax / dax.c

diff --git a/drivers/dax/dax.c b/drivers/dax/dax.c
index 0e499bfca41ccda4752463f770dd495259fb255e..286447a83dab809e0522e461c7e6ca416e997462 100644 (file)
--- a/drivers/dax/dax.c
+++ b/drivers/dax/dax.c
@@ -270,8 +270,8 @@ static int check_vma(struct dax_dev *dax_dev, struct vm_area_struct *vma,
        if (!dax_dev->alive)
                return -ENXIO;
 
-       /* prevent private / writable mappings from being established */
-       if ((vma->vm_flags & (VM_NORESERVE|VM_SHARED|VM_WRITE)) == VM_WRITE) {
+       /* prevent private mappings from being established */
+       if ((vma->vm_flags & VM_MAYSHARE) != VM_MAYSHARE) {
                dev_info(dev, "%s: %s: fail, attempted private mapping\n",
                                current->comm, func);
                return -EINVAL;