linux-kernel - Re: [PATCH 3/3] xen blkback: add fault injection facility

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Message-ID: <ef016b7b-6c0e-1684-5714-0a6d5a46504e@suse.com>
Date:   Fri, 20 Apr 2018 13:28:19 +0200
From:   Juergen Gross <jgross@...e.com>
To:     Stanislav Kinsburskii <staskins@...zon.com>
Cc:     jakub.kicinski@...ronome.com, hpa@...or.com, mcroce@...hat.com,
        tglx@...utronix.de, ggarcia@...a.uab.cat, daniel@...earbox.net,
        x86@...nel.org, mingo@...hat.com, xen-devel@...ts.xenproject.org,
        axboe@...nel.dk, konrad.wilk@...cle.com, amir.jer.levy@...el.com,
        paul.durrant@...rix.com, stefanha@...hat.com,
        dsa@...ulusnetworks.com, boris.ostrovsky@...cle.com,
        linux-block@...r.kernel.org, wei.liu2@...rix.com,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
        davem@...emloft.net, dwmw@...zon.co.uk, roger.pau@...rix.com
Subject: Re: [PATCH 3/3] xen blkback: add fault injection facility

On 20/04/18 12:47, Stanislav Kinsburskii wrote:
> This patch adds wrapper helpers around generic Xen fault inject
> facility.
> The major reason is to keep all the module fault injection directories
> in a dedicated subdirectory instead of Xen fault inject root.
> 
> IOW, when using these helpers, per-device and named by device name
> fault injection control directories will appear under the following
> directory:
> - /sys/kernel/debug/xen/fault_inject/xen-blkback/
> instead of:
> - /sys/kernel/debug/xen/fault_inject/
> 
> Signed-off-by: Stanislav Kinsburskii <staskins@...zon.com>
> CC: Jens Axboe <axboe@...nel.dk>
> CC: Konrad Rzeszutek Wilk <konrad.wilk@...cle.com>
> CC: "Roger Pau Monné" <roger.pau@...rix.com>
> CC: linux-kernel@...r.kernel.org
> CC: linux-block@...r.kernel.org
> CC: xen-devel@...ts.xenproject.org
> CC: Stanislav Kinsburskii <staskins@...zon.com>
> CC: David Woodhouse <dwmw@...zon.co.uk>

This is an exact copy of the netback patch apart from the names.

I don't like adding multiple copies of the same coding to the tree.


Juergen