[linux-lvm] lvcreate and lvremove --quiet option is not quiet

Jeff jlar310 at gmail.com
Tue Feb 15 13:02:20 UTC 2011

On Mon, Feb 14, 2011 at 12:14 PM, Alasdair G Kergon <agk at redhat.com> wrote:
> The simple problem is that the code today does not distinguish between
> essential output (to stdout) and incidental output (to stdout).
> If I run 'pvs' I expect a list of PVs.
> If I run 'pvs --quiet' do I still expect to see that list?
> Today, there is no distinction: pvs output and the message you're wanting
> to suppress are the same category of message.

Yes, there should be a difference between "do-something" commands and
"tell-me-something" commands. I hope there aren't too many cases where
that's a gray area.

> The fix is to introduce a new macro alongside log_print so we can distinguish
> between the two cases, then have --quiet discard the incidental output and
> review every instance of log_print to see if it needs moving into the 'discard
> if quiet' category.  Also provide an lvm.conf option to make --quiet the default
> for those who want that.  etc.


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