1 files changed, 4 insertions, 1 deletions

diff --git a/include/linux/nfs_fs.h b/include/linux/nfs_fs.h
index deef9567788a..9a6047ff1b25 100644
--- a/include/linux/nfs_fs.h
+++ b/include/linux/nfs_fs.h
@@ -238,8 +238,11 @@ static inline int nfs_caches_unstable(struct inode *inode)
 
 static inline void NFS_CACHEINV(struct inode *inode)
 {
-        if (!nfs_caches_unstable(inode))
+        if (!nfs_caches_unstable(inode)) {
+                spin_lock(&inode->i_lock);
                 NFS_I(inode)->cache_validity |= NFS_INO_INVALID_ATTR | NFS_INO_INVALID_ACCESS;
+                spin_unlock(&inode->i_lock);
+        }
 }
 
 static inline int nfs_server_capable(struct inode *inode, int cap)