Re: dm-mpath: Clear map_context pointer when requeuing

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Subject: Re: dm-mpath: Clear map_context pointer when requeuing
From: Alasdair G Kergon <agk@xxxxxxxxxx>
Date: Mon, 19 Mar 2012 15:00:15 +0000
In-reply-to: <4EDD9DBD.7000603@ce.jp.nec.com>
Mail-followup-to: Hannes Reinecke <hare@xxxxxxx>, dm-devel@xxxxxxxxxx, Jun'ichi Nomura <j-nomura@xxxxxxxxxxxxx>, James Bottomley <jbottomley@xxxxxxxxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, Mike Snitzer <snitzer@xxxxxxxxxx>
Organization: Red Hat UK Ltd. Registered in England and Wales, number 03798903. Registered Office: 64 Baker Street, 4th floor, London, W1U 7DF.
References: <1322663118-53387-1-git-send-email-hare@suse.de> <20111130144951.GA13775@redhat.com> <4ED6C67A.3060305@ce.jp.nec.com> <4ED8FA8F.20109@suse.de> <4EDCA1BD.1000708@ce.jp.nec.com> <4EDCEFFE.6080702@suse.de> <4EDD9DBD.7000603@ce.jp.nec.com>
Reply-to: device-mapper development <dm-devel@xxxxxxxxxx>
User-agent: Mutt/1.5.18 (2008-05-17)

OK - I'm not taking this patch in its current form.

If there are still concerns about this, I would accept a BUG_ON() style patch
that consistently checks/clears the value of the field.

Alasdair

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References:
- [PATCH] dm-mpath: Clear map_context pointer when requeuing
  - From: Hannes Reinecke
- Re: dm-mpath: Clear map_context pointer when requeuing
  - From: Mike Snitzer
- Re: dm-mpath: Clear map_context pointer when requeuing
  - From: Jun'ichi Nomura
- Re: dm-mpath: Clear map_context pointer when requeuing
  - From: Hannes Reinecke
- Re: dm-mpath: Clear map_context pointer when requeuing
  - From: Jun'ichi Nomura
- Re: dm-mpath: Clear map_context pointer when requeuing
  - From: Hannes Reinecke
- Re: dm-mpath: Clear map_context pointer when requeuing
  - From: Jun'ichi Nomura

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