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From: "Jun'ichi Nomura" <j-nomura@ce.jp.nec.com>
To: Milan Broz <mbroz@redhat.com>, Kay Sievers <kay.sievers@vrfy.org>,
	Tejun Heo <tj@kernel.org>
Cc: Karel Zak <kzak@redhat.com>,
	device-mapper development <dm-devel@redhat.com>,
	Valdis.Kletnieks@vt.edu, linux-kernel@vger.kernel.org,
	linux-raid@vger.kernel.org,
	Alexander Viro <viro@zeniv.linux.org.uk>,
	linux-fsdevel@vger.kernel.org
Subject: Re: [dm-devel] linux-next - WARNING: at fs/block_dev.c:824 bd_link_disk_holder+0x92/0x1ac()
Date: Fri, 14 Jan 2011 16:38:05 +0900	[thread overview]
Message-ID: <4D2FFD5D.9070709@ce.jp.nec.com> (raw)
In-Reply-To: <4D2F1430.50906@redhat.com>

On 01/14/11 00:03, Milan Broz wrote:
> On 01/13/2011 03:43 PM, Kay Sievers wrote:
> 
>>> On Thu, Jan 13, 2011 at 3:25 PM, Milan Broz <mbroz@redhat.com> wrote:
>>>> Maybe, but this was not invented in DM/MD camp:-)
>>>> Probably Kay or Greg can answer why it was done this way?
>>
>> It's not from Greg or Kay. It just appeared some day in the context of dm. :)
> 
> ah, then sorry, I am just confused:-)
> But DM does not need it for operation at all so it must had some other reason.
> (We have dmsetup ls --tree using dm-ioctls for years.)

Sorry. It's from me 5 years ago. :)

See this for backgrounds:
  [PATCH 0/3] sysfs representation of stacked devices (dm/md)
  http://lwn.net/Articles/172689/

And I don't adhere to my implementation if there's better one.

Thanks,
-- 
Jun'ichi Nomura, NEC Corporation

  reply	other threads:[~2011-01-14  7:38 UTC|newest]

Thread overview: 44+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2011-01-12 17:34 linux-next - WARNING: at fs/block_dev.c:824 bd_link_disk_holder+0x92/0x1ac() Valdis.Kletnieks
2011-01-13  0:23 ` Milan Broz
2011-01-13  2:19   ` Jun'ichi Nomura
2011-01-13 11:06     ` Tejun Heo
2011-01-13 11:26       ` [dm-devel] " Milan Broz
2011-01-13 12:27         ` Karel Zak
2011-01-13 13:12           ` Tejun Heo
2011-01-13 13:26             ` Karel Zak
2011-01-13 13:37               ` Tejun Heo
2011-01-13 13:52                 ` Tejun Heo
2011-01-13 13:58                 ` Milan Broz
2011-01-13 14:11                   ` Tejun Heo
2011-01-13 14:25                     ` Milan Broz
2011-01-13 14:30                       ` Tejun Heo
2011-01-13 14:43                         ` Kay Sievers
2011-01-13 15:03                           ` Milan Broz
2011-01-14  7:38                             ` Jun'ichi Nomura [this message]
2011-01-13 15:59                           ` Karel Zak
2011-01-13 15:59                             ` [dm-devel] " Karel Zak
2011-01-13 16:10                             ` Kay Sievers
2011-01-14 15:07                               ` Karel Zak
2011-01-14 15:07                                 ` Karel Zak
2011-01-14 15:23                                 ` Kay Sievers
2011-01-14 15:23                                   ` Kay Sievers
2011-01-13 14:45                         ` Theodore Tso
2011-01-13 20:18                           ` NeilBrown
2011-01-13 20:41                             ` Ted Ts'o
2011-01-14 16:20                               ` Tejun Heo
2011-01-14 16:20                                 ` Tejun Heo
2011-01-14 17:59                                 ` Ted Ts'o
2011-01-14 18:23                                   ` Tejun Heo
2011-01-14 18:23                                   ` Tejun Heo
2011-01-14 18:23                                   ` [dm-devel] " Tejun Heo
2011-01-14 18:23                                   ` Tejun Heo
2011-01-14 16:20                               ` Tejun Heo
2011-01-13 14:49                         ` Milan Broz
2011-01-14 16:35                           ` Tejun Heo
2011-01-13 17:21     ` [PATCH] block: restore multiple bd_link_disk_holder() support Tejun Heo
2011-01-13 18:42       ` Milan Broz
2011-01-14  7:31         ` Jun'ichi Nomura
2011-01-14 16:10           ` [PATCH UPDATED] " Tejun Heo
2011-01-14 16:10             ` Tejun Heo
2011-01-14 21:09             ` Milan Broz
2011-01-17  0:18               ` Jun'ichi Nomura

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