[PATCH 4/5] pnfs-submit: file needs layout commit, server attributes may be stale

[Benny Halevy <bhalevy@panasas.com>]

[part of "pnfs: layoutcommit"]
Signed-off-by: Andy Adamson <andros@netapp.com>
Signed-off-by: Benny Halevy <bhalevy@panasas.com>
---
 fs/nfs/inode.c |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index 979483f..8cdea1a 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -1212,6 +1212,14 @@ static int nfs_update_inode(struct inode *inode, struct nfs_fattr *fattr)
 		server->fsid = fattr->fsid;
 
 	/*
+	 * file needs layout commit, server attributes may be stale
+	 */
+	if (layoutcommit_needed(nfsi) && nfsi->change_attr >= fattr->change_attr) {
+		dprintk("NFS: %s: layoutcommit is needed for file %s/%ld\n",
+			__func__, inode->i_sb->s_id, inode->i_ino);
+		return 0;
+	}
+	/*
 	 * Update the read time so we don't revalidate too often.
 	 */
 	nfsi->read_cache_jiffies = fattr->time_start;
-- 
1.7.2.3