Re: [PATCH] blk: don't account discard request size

From: Jeff Moyer
Date: Wed May 13 2015 - 11:00:58 EST


Jens Axboe <axboe@xxxxxx> writes:

> That would be better. But I'm still not sure we want to turn off
> accounting for discards. For the mixed write/discard cases it's
> definitely confusing. The better option would be to account it as a
> discard and not a write. Preferably in a way that would not break
> existing tools, but so that they could get updated to support it.

Are you suggesting adding a few fields to the end of diskstats or adding
a new proc file altogether? (or something else?)

Cheers,
Jeff
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