Re: [PATCH] DM MULTIPATH: Allow dm to send larger request if underlying device set to larger max_sectors value

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Subject: Re: [PATCH] DM MULTIPATH: Allow dm to send larger request if underlying device set to larger max_sectors value
From: Alasdair G Kergon <agk@xxxxxxxxxx>
Date: Mon, 9 Jul 2012 02:01:32 +0100
Cc: "dm-devel@xxxxxxxxxx" <dm-devel@xxxxxxxxxx>, "Moger, Babu" <Babu.Moger@xxxxxxxxxx>, "Stankey, Robert" <Robert.Stankey@xxxxxxxxxx>
In-reply-to: <F200AD42A082BC4088B232D13A916A8907E5DD64@SACEXCMBX02-PRD.hq.netapp.com>
Mail-followup-to: "Chauhan, Vijay" <Vijay.Chauhan@xxxxxxxxxx>, "dm-devel@xxxxxxxxxx" <dm-devel@xxxxxxxxxx>, "Moger, Babu" <Babu.Moger@xxxxxxxxxx>, "Stankey, Robert" <Robert.Stankey@xxxxxxxxxx>
Organization: Red Hat UK Ltd. Registered in England and Wales, number 03798903. Registered Office: 64 Baker Street, 4th floor, London, W1U 7DF.
References: <F200AD42A082BC4088B232D13A916A8907E5DD64@SACEXCMBX02-PRD.hq.netapp.com>
Reply-to: device-mapper development <dm-devel@xxxxxxxxxx>
User-agent: Mutt/1.5.18 (2008-05-17)

Why is this separate from dm_set_device_limits?
Why is this not handled by blk-settings.c?
Should max_sectors be preserved across a table reload?

Alasdair

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References:
- [PATCH] DM MULTIPATH: Allow dm to send larger request if underlying device set to larger max_sectors value
  - From: Chauhan, Vijay

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