1 files changed, 9 insertions, 0 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 68921b01b792..577a36f0a510 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1002,6 +1002,15 @@ int nfs_revalidate_inode(struct nfs_server *server, struct inode *inode)
 }
 EXPORT_SYMBOL_GPL(nfs_revalidate_inode);
 
+int nfs_revalidate_inode_rcu(struct nfs_server *server, struct inode *inode)
+{
+        if (!(NFS_I(inode)->cache_validity &
+                        (NFS_INO_INVALID_ATTR|NFS_INO_INVALID_LABEL))
+                        && !nfs_attribute_cache_expired(inode))
+                return NFS_STALE(inode) ? -ESTALE : 0;
+        return -ECHILD;
+}
+
 static int nfs_invalidate_mapping(struct inode *inode, struct address_space *mapping)
 {
         struct nfs_inode *nfsi = NFS_I(inode);