On 5/6/20 7:39 AM, Jan Kara wrote: > I was investigating a performance issue with BFQ IO scheduler and I was > pondering why I'm not seeing informational messages from BFQ. After quite > some debugging I have found out that commit 35fe6d763229 "block: use > standard blktrace API to output cgroup info for debug notes" broke standard > blktrace API - namely the informational messages logged by bfq_log_bfqq() > are no longer displayed by blkparse(8) tool. This is because these messages > have now __BLK_TA_CGROUP bit set and that breaks flags checking in > blkparse(1) and iowatcher(1). This series fixes both tools to be able to > cope with events with __BLK_TA_CGROUP flag set. Applied, thanks. -- Jens Axboe
