[PATCH 0/3] Fix blkparse and iowatcher for kernels >= 4.14

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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.

								Honza



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