Flush out stale file data before changing modification time

This is to address bug 360310, where "cp -p" didn't preserve time and
date. See bug 360310 for details.

Signed-off-by: Marcelo Vanzin <mvanzin@vmware.com>

diff --git a/open-vm-tools/modules/linux/vmhgfs/inode.c b/open-vm-tools/modules/linux/vmhgfs/inode.c
index f413527958d8b044c94baf543ec3796c0940f0cc..377f1bacb72eb2841789ef4f2327ef1c772e687f 100644 (file)
--- a/open-vm-tools/modules/linux/vmhgfs/inode.c
+++ b/open-vm-tools/modules/linux/vmhgfs/inode.c
@@ -1967,9 +1967,9 @@ HgfsSetattr(struct dentry *dentry,  // IN: File to set attributes of
 
    /*
     * Flush all dirty pages prior to sending the request if we're going to
-    * modify the file size.
+    * modify the file size or change the last write time.
     */
-   if (iattr->ia_valid & ATTR_SIZE) {
+   if (iattr->ia_valid & ATTR_SIZE || iattr->ia_valid & ATTR_MTIME) {
       compat_filemap_write_and_wait(dentry->d_inode->i_mapping);
    }