On 07/07/2011 05:41 PM, Gangadhar Mylapuram wrote: > Hi, > > As for my understanding I no need to handle (BLKRESTART, BLKTRACESTOP, > BLKTRACESETUP ..) in my device ioctl handling. It is block l/O layer > which intercepts the > statistics and does the job. > > But for my device (not sda or hda), blktrace only show the Q events. > It is not showing even C (completed) events. Do I need to add the > support in my device ioctl handling code? These trace pointers are only recorded if they are met. So I guess the reason is that your device implements your own make_request_fn(So you can see 'Q' event) and no other trace point is met at all. Thanks, Tao -- To unsubscribe from this list: send the line "unsubscribe linux-btrace" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
