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From: Tejun Heo <tj@kernel.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>,
	Ingo Molnar <mingo@elte.hu>,
	linux-kernel@vger.kernel.org,
	Andrew Morton <akpm@linux-foundation.org>,
	Jens Axboe <jens.axboe@oracle.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	Yinghai Lu <yinghai@kernel.org>
Subject: Re: [bug] latest -git boot hang
Date: Mon, 13 Oct 2008 18:13:35 +0900	[thread overview]
Message-ID: <48F3113F.7090905@kernel.org> (raw)
In-Reply-To: <48F00476.6030108@zytor.com>

H. Peter Anvin wrote:
> Tejun Heo wrote:
>>
>> Yeap, if fedora didn't work, I think it should be hidden.  Do we already
>> have place to hide things like this?
>>
> 
> By the way, I don't see anything in this patchset that lets userspace
> discover the parent device.  Since the old rule of
> 
>     partition device = parent device + partition number
> 
> ... no longer holds, this is a serious omission for something that is in
> mainstream (and therefore *requires* that a new interface is deployed
> for anything that cares.)
> 
> This will have to be addressed before 2.6.28 final.

The sysfs directory for the parent can be reached by "cd -P
/sys/class/block/PART/..".  That should be enough, right?  I'll add
the partition attribute but I don't really think we need to do
anything to improve parent discovery.

Thanks.

-- 
tejun

  reply	other threads:[~2008-10-13  9:16 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-10-10 20:30 [bug] latest -git boot hang Ingo Molnar
2008-10-10 20:40 ` Ingo Molnar
2008-10-10 20:56   ` Ingo Molnar
2008-10-10 21:10     ` Linus Torvalds
2008-10-11  0:50       ` Tejun Heo
2008-10-11  1:42         ` H. Peter Anvin
2008-10-13  9:13           ` Tejun Heo [this message]
2008-10-13 11:07             ` [PATCH] block: add partition attribute for partition number Tejun Heo
2008-10-13 11:27               ` Jens Axboe
2008-10-11  7:11         ` [bug] latest -git boot hang Jens Axboe
2008-10-11  7:19         ` Ingo Molnar
2008-10-11 14:08           ` Jens Axboe
2008-10-11 14:33             ` Ingo Molnar
2008-10-11 14:39               ` Jens Axboe
2008-10-11 14:58                 ` Ingo Molnar
2008-10-11 17:58                   ` Jens Axboe
2008-10-13  6:41                     ` [PATCH] block: add BIG FAT WARNING to CONFIG_DEBUG_BLOCK_EXT_DEVT Tejun Heo
2008-10-13  8:46                       ` Jens Axboe
2008-10-14 15:15                       ` Christoph Hellwig
2008-10-14 17:31                         ` Tejun Heo
2008-10-14 15:07           ` [bug] latest -git boot hang Stephen Smalley
2008-10-14 15:12             ` Ingo Molnar
2008-10-14 15:24               ` Stephen Smalley
2008-10-15  1:48                 ` Casey Schaufler
2008-10-13  8:41         ` Takashi Iwai

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