NFS: nfs_wcc_update_inode: directory caches are always invalidated

We must ensure that the readdir data is always invalidated whether or not
the weak cache consistency data update succeeds.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index cca1ab2922bf..f1f6639f52b5 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -801,6 +801,8 @@ static void nfs_wcc_update_inode(struct inode *inode, struct nfs_fattr *fattr)
                 }
                 if (timespec_equal(&inode->i_mtime, &fattr->pre_mtime)) {
                         memcpy(&inode->i_mtime, &fattr->mtime, sizeof(inode->i_mtime));
+                        if (S_ISDIR(inode->i_mode))
+                                nfsi->cache_validity |= NFS_INO_INVALID_DATA;
                         nfsi->cache_change_attribute = now;
                 }
                 if (inode->i_size == fattr->pre_size && nfsi->npages == 0) {