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From: hch@infradead.org (Christoph Hellwig)
Subject: [PATCH] admin-cmd: Added smart-log command support.
Date: Mon, 5 Sep 2016 06:11:27 -0700	[thread overview]
Message-ID: <20160905131127.GA3176@infradead.org> (raw)
In-Reply-To: <ac203b28-39ed-4f2a-b0fc-f586e43c9346@grimberg.me>

On Sun, Sep 04, 2016@11:41:09AM +0300, Sagi Grimberg wrote:
> Given that we don't own the namespaces, I'm wandering if this is the
> correct way to do this... I'm not at all convinced that having something
> else reading/writing to the blkdevs other than nvmf is a valid/useful
> use-case but in this situation we won't get correct log information
> (or at least the semantics is wrong).
> 
> Should we maintain these statistics in the target stack instead?

What's the problem with including possible local I/O?  Having to
maintain another set of counters, including atomics in the fast path
or complex per-cpu infrastructure is something I'd rather avoid.

  reply	other threads:[~2016-09-05 13:11 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-09-01 19:45 [PATCH] admin-cmd: Added smart-log command support Chaitanya Kulkarni
2016-09-04  8:41 ` Sagi Grimberg
2016-09-05 13:11   ` Christoph Hellwig [this message]
2016-09-05 14:09     ` Sagi Grimberg
2016-09-20 19:00 ` Sagi Grimberg
2016-09-20 20:03   ` Christoph Hellwig

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