diff --git a/fs/namei.c b/fs/namei.c
index 464eeccb675b..1e5c71669164 100644
--- a/fs/namei.c
+++ b/fs/namei.c
@@ -1659,8 +1659,10 @@ int may_open(struct nameidata *nd, int acc_mode, int flag)
 		error = locks_verify_locked(inode);
 		if (!error) {
 			DQUOT_INIT(inode);
-			
-			error = do_truncate(dentry, 0, ATTR_MTIME|ATTR_CTIME, NULL);
+
+			error = do_truncate(dentry, 0,
+					    ATTR_MTIME|ATTR_CTIME|ATTR_OPEN,
+					    NULL);
 		}
 		put_write_access(inode);
 		if (error)
diff --git a/include/linux/fs.h b/include/linux/fs.h
index e3fc5dbb2246..6a4d170ad9a5 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -330,6 +330,7 @@ typedef void (dio_iodone_t)(struct kiocb *iocb, loff_t offset,
 #define ATTR_KILL_SGID	4096
 #define ATTR_FILE	8192
 #define ATTR_KILL_PRIV	16384
+#define ATTR_OPEN	32768	/* Truncating from open(O_TRUNC) */
 
 /*
  * This is the Inode Attributes structure, used for notify_change().  It