NFS: Make stat() return updated mtimes after a write()

 The SuS states that a call to write() will cause mtime to be updated on
 the file. In order to satisfy that requirement, we need to flush out
 any cached writes in nfs_getattr().
 Speed things up slightly by not committing the writes.

 Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/fs/nfs/inode.c b/fs/nfs/inode.c
index acde2c5725bf..2c7f8aac1dec 100644
--- a/fs/nfs/inode.c
+++ b/fs/nfs/inode.c
@@ -952,6 +952,8 @@ int nfs_getattr(struct vfsmount *mnt, struct dentry *dentry, struct kstat *stat)
         int need_atime = NFS_I(inode)->cache_validity & NFS_INO_INVALID_ATIME;
         int err;
 
+        /* Flush out writes to the server in order to update c/mtime */
+        nfs_sync_inode(inode, 0, 0, FLUSH_WAIT|FLUSH_NOCOMMIT);
         if (__IS_FLG(inode, MS_NOATIME))
                 need_atime = 0;
         else if (__IS_FLG(inode, MS_NODIRATIME) && S_ISDIR(inode->i_mode))