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: Ubuntu-5.0.0-8.9~8739^2~39
X-Git-Url: https://git.proxmox.com/?a=commitdiff_plain;h=5420401079e152ff68a8024f6a375804b1c21505;p=mirror_ubuntu-disco-kernel.git

NFS41/flexfiles: zero out DS write wcc

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

Cc: stable@vger.kernel.org # v4.0+
Signed-off-by: Peng Tao <tao.peng@primarydata.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
---

diff --git a/fs/nfs/flexfilelayout/flexfilelayout.c b/fs/nfs/flexfilelayout/flexfilelayout.c
index 7e4cbdfb3713..cc2c5f7f2bc1 100644
--- a/fs/nfs/flexfilelayout/flexfilelayout.c
+++ b/fs/nfs/flexfilelayout/flexfilelayout.c
@@ -1218,6 +1218,8 @@ 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);