linux-kernel - Re: [dm-devel] [PATCH] dm: verity: Add support for emitting uevents on dm-verity errors.

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Message-ID: <20130621005905.GI23042@agk-dp.fab.redhat.com>
Date:	Fri, 21 Jun 2013 01:59:05 +0100
From:	Alasdair G Kergon <agk@...hat.com>
To:	Geremy Condra <gcondra@...gle.com>
Cc:	dm-devel@...hat.com, wad@...omium.org,
	linux-kernel@...r.kernel.org, agk@...hat.com
Subject: Re: [dm-devel] [PATCH] dm: verity: Add support for emitting
	uevents on dm-verity errors.

On Thu, Jun 20, 2013 at 02:21:00PM -0700, Geremy Condra wrote:
> With this change and config option, dm-verity errors
> will cause uevents to be sent to userspace, notifying
> it that an error has occurred and potentially
> triggering recovery actions.
 
> +config DM_VERITY_ERROR_NOTIFY
> +	tristate "Notify userspace of verity errors through uevents"
> +	depends on DM_VERITY && DM_UEVENT
> +	---help---
> +	  This option instructs dm-verity to send uevents on error.
> +

Would it cause any problems if we had this feature enabled all the time,
controlled only by DM_UEVENT?

In other words, if we delete DM_VERITY_ERROR_NOTIFY from the upstream patch?

Alasdair

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