linux-ext4 - Re: ext4_put_super is not called during system shutdown or restart

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Message-ID: <4DB584B0.3000101@redhat.com>
Date:	Mon, 25 Apr 2011 09:26:56 -0500
From:	Eric Sandeen <sandeen@...hat.com>
To:	Zhao Cai <zhaocai@...com>
CC:	linux-ext4@...r.kernel.org
Subject: Re: ext4_put_super is not called during system shutdown or restart

On 4/24/11 11:12 PM, Zhao Cai wrote:
> I would appreciate if anyone can give me an answer. Is it designed to
> be like this?
> 
> Detailed situation: The system is ubuntu 11.04 installed in VMware. I
> notice that ext4_put_super() is called when I unmount a non-root ext4
> partition. But it is not when I restart or shutdown the system.

Even for a non-root filesystem?

I don't know if ubuntu does anything special, but I would expect that during a system shutdown, non-root filesystems would be unmounted, and you'd get put_super called.  Unless the fs is busy and it can't be unmounted for some reason...

-Eric

> Thanks。
> 
> -- All the best,
> 
> Zhao Cai
> 
> 
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