pNFS/files: filelayout_write_done_cb must call nfs_writeback_update_inode()

All write callbacks are required to call nfs_writeback_update_inode() upon
success to ensure that file size changes are recorded, and the attribute
cache is invalidated.

Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>

1 files changed, 6 insertions, 0 deletions

diff --git a/fs/nfs/filelayout/filelayout.c b/fs/nfs/filelayout/filelayout.c
index 25bd91a6e088..a3fc48ba4931 100644
--- a/fs/nfs/filelayout/filelayout.c
+++ b/fs/nfs/filelayout/filelayout.c
@@ -357,6 +357,12 @@ static int filelayout_write_done_cb(struct rpc_task *task,
         }
 
         filelayout_set_layoutcommit(hdr);
+
+        /* zero out the fattr */
+        hdr->fattr.valid = 0;
+        if (task->tk_status >= 0)
+                nfs_writeback_update_inode(hdr);
+
         return 0;
 }