linux-kernel - Re: [PATCH] ext4: Do not destroy ext4_groupinfo_caches if ext4_mb

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Message-ID: <20140512164956.GA4150@thunk.org>
Date:	Mon, 12 May 2014 12:49:56 -0400
From:	Theodore Ts'o <tytso@....edu>
To:	Lukáš Czerner <lczerner@...hat.com>
Cc:	Andrey Tsyvarev <tsyvarev@...ras.ru>,
	Andreas Dilger <adilger.kernel@...ger.ca>,
	linux-ext4@...r.kernel.org, linux-kernel@...r.kernel.org,
	Alexey Khoroshilov <khoroshilov@...ras.ru>
Subject: Re: [PATCH] ext4: Do not destroy ext4_groupinfo_caches if
 ext4_mb_init() fails

On Mon, May 12, 2014 at 05:08:41PM +0200, Lukáš Czerner wrote:
> > 
> > Caches from 'ext4_groupinfo_caches' may be in use by other mounts, which have already existed.
> > So, it is incorrect to destroy them when newly requested mount fails.
> > 
> > Found by Linux File System Verification project (linuxtesting.org).
> 
> Makes sense, thanks! Can you please share the test case which
> triggered this ? It might be worth including in xfstests.
> 
> Reviewed-by: Lukas Czerner <lczerner@...hat.com>

Thanks, applied.

				- Ted
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