From: Peng Tao <tao.peng@primarydata.com>
Date: Fri, 21 Aug 2015 22:40:00 +0000 (+0800)
Subject: NFS41/flexfiles: zero out DS write wcc
X-Git-Tag: v4.2.2~50
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=6290313c5855b9062832d02301bd4eacb69da7bd;p=thirdparty%2Fkernel%2Fstable.git

NFS41/flexfiles: zero out DS write wcc

commit 5420401079e152ff68a8024f6a375804b1c21505 upstream.

We do not want to update inode attributes with DS values.

Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index e31e8fe0e5ec6..14e3b1e1b17d2 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1199,6 +1199,8 @@ static int ff_layout_write_done_cb(struct rpc_task *task,
 	    hdr->res.verf->committed == NFS_DATA_SYNC)
 		ff_layout_set_layoutcommit(hdr);
 
+	/* zero out fattr since we don't care DS attr at all */
+	hdr->fattr.valid = 0;
 	if (task->tk_status >= 0)
 		nfs_writeback_update_inode(hdr);