Re: losetup -d --force for zombie loop devices?

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To: Thomas Orgis <thomas-forum@xxxxxxxxx>
Subject: Re: losetup -d --force for zombie loop devices?
From: Mike Frysinger <vapier@xxxxxxxxxx>
Date: Tue, 17 Apr 2012 10:58:22 -0400
Cc: util-linux@xxxxxxxxxxxxxxx
In-reply-to: <20120417100346.2a0b8301@orgis.org>
Organization: wh0rd.org
References: <20120417100346.2a0b8301@orgis.org>
User-agent: KMail/1.13.7 (Linux/3.4.0-rc1; KDE/4.6.5; x86_64; ; )

On Tuesday 17 April 2012 04:03:46 Thomas Orgis wrote:
> ioctl(0, 0x4c01, 0)                     = -1 EBUSY (Device or resource
> busy)

that's LOOP_CLR_FD returning EBUSY.  so there isn't much (afaik) that 
userspace can do here.  you'd have to start a thread on lkml first to add 
support for lazy/force loop device detaching.
-mike

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