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-rw-r--r--mm/shmem.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/mm/shmem.c b/mm/shmem.c
index 14de2a9e5083..8412baec17cd 100644
--- a/mm/shmem.c
+++ b/mm/shmem.c
@@ -191,6 +191,11 @@ static const struct inode_operations shmem_special_inode_operations;
static const struct vm_operations_struct shmem_vm_ops;
static struct file_system_type shmem_fs_type;
+bool vma_is_shmem(struct vm_area_struct *vma)
+{
+ return vma->vm_ops == &shmem_vm_ops;
+}
+
static LIST_HEAD(shmem_swaplist);
static DEFINE_MUTEX(shmem_swaplist_mutex);