Re: [PATCH 02/12] blk-mq: expose stream write stats through debugfs

Jens,

Useful to verify that things are working the way they should.
Reading the file will return number of kb written to each
stream. Writing the file will reset the statistics. No care
is taken to ensure that we don't race on updates.

Drivers will write to q->stream_writes[] if they handle a stream.

s/stream/write_lifetime_bucket/ or something like that.

-- 
Martin K. Petersen	Oracle Linux Engineering