From mboxrd@z Thu Jan  1 00:00:00 1970
From: Mike Snitzer <snitzer@redhat.com>
Subject: Re: [PATCH 1/2 v3] dm: discard support for the linear
	target
Date: Tue, 29 Jun 2010 01:33:25 -0400
Message-ID: <20100629053324.GA16193@redhat.com>
References: <1277584285-13774-1-git-send-email-snitzer@redhat.com>
	<20100629052546.GA15852@redhat.com>
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On Tue, Jun 29 2010 at  1:25am -0400,
Mike Snitzer <snitzer@redhat.com> wrote:

> Allow discards to be passed through to a single device linear mapping.
> Introduce DM_TARGET_SUPPORTS_DISCARDS target features flag that each
> target must set once discard support is added.
> 
> Verify table's underlying devices support discards prior to setting the
> associated DM device as capable of discards (via QUEUE_FLAG_DISCARD).
> 
> Signed-off-by: Mike Snitzer <snitzer@redhat.com>

I mistakenly dropped Joe's Reviewed-by after making agk's suggested
(minor) changes for v3:
- invert if..else logic in __clone_and_map_discard
- remove unnecessary uninitialized_var() in dm_table_supports_discards

Reviewed-by: Joe Thornber <thornber@redhat.com>