1 files changed, 16 insertions, 3 deletions

diff --git a/fs/nfs/read.c b/fs/nfs/read.c
index dae33c1e8a77..69f1549da2b9 100644
--- a/fs/nfs/read.c
+++ b/fs/nfs/read.c
@@ -568,8 +568,13 @@ int nfs_readpage_result(struct rpc_task *task, struct nfs_read_data *data)
 
         nfs_add_stats(data->inode, NFSIOS_SERVERREADBYTES, resp->count);
 
-        /* Is this a short read? */
-        if (task->tk_status >= 0 && resp->count < argp->count && !resp->eof) {
+        if (task->tk_status < 0) {
+                if (task->tk_status == -ESTALE) {
+                        set_bit(NFS_INO_STALE, &NFS_FLAGS(data->inode));
+                        nfs_mark_for_revalidate(data->inode);
+                }
+        } else if (resp->count < argp->count && !resp->eof) {
+                /* This is a short read! */
                 nfs_inc_stats(data->inode, NFSIOS_SHORTREAD);
                 /* Has the server at least made some progress? */
                 if (resp->count != 0) {
@@ -616,6 +621,10 @@ int nfs_readpage(struct file *file, struct page *page)
         if (error)
                 goto out_error;
 
+        error = -ESTALE;
+        if (NFS_STALE(inode))
+                goto out_error;
+
         if (file == NULL) {
                 ctx = nfs_find_open_context(inode, NULL, FMODE_READ);
                 if (ctx == NULL)
@@ -678,7 +687,7 @@ int nfs_readpages(struct file *filp, struct address_space *mapping,
         };
         struct inode *inode = mapping->host;
         struct nfs_server *server = NFS_SERVER(inode);
-        int ret;
+        int ret = -ESTALE;
 
         dprintk("NFS: nfs_readpages (%s/%Ld %d)\n",
                         inode->i_sb->s_id,
@@ -686,6 +695,9 @@ int nfs_readpages(struct file *filp, struct address_space *mapping,
                         nr_pages);
         nfs_inc_stats(inode, NFSIOS_VFSREADPAGES);
 
+        if (NFS_STALE(inode))
+                goto out;
+
         if (filp == NULL) {
                 desc.ctx = nfs_find_open_context(inode, NULL, FMODE_READ);
                 if (desc.ctx == NULL)
@@ -701,6 +713,7 @@ int nfs_readpages(struct file *filp, struct address_space *mapping,
                         ret = err;
         }
         put_nfs_open_context(desc.ctx);
+out:
         return ret;
 }