Hi, On Mon, Oct 8, 2012 at 9:49 PM, Jan Kara <jack@xxxxxxx> wrote: > And what tool are you using for monitoring? I am using printk(). A custom module that changes the make_request_fn of the block device to a custom callback. In the callback I am printing the request bio details and passing the bio back to the original make_request_fn. Regards. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html