On Wed, Oct 10, 2012 at 06:07:34PM +0800, [email protected] wrote: > From: Zhi Yong Wu <[email protected]> > > Add a /sys/kernel/debug/hot_track/<device_name>/ directory for each > volume that contains two files. The first, `inode_data', contains the > heat information for inodes that have been brought into the hot data map > structures. The second, `range_data', contains similar information for > subfile ranges. .... > + /* create debugfs range_data file */ > + debugfs_range_entry = debugfs_create_file("range_data", > + S_IFREG | S_IRUSR | S_IWUSR | S_IRUGO, > + debugfs_volume_entry, > + (void *) range_data, > + &hot_debugfs_range_fops);
These should not be world readable. 0600 is probably the correct permissions for them as we do not want random users to be able to infer what files users are accessing from this information. Cheers, Dave. -- Dave Chinner [email protected] -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
