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From: Arjan van de Ven <arjan@linux.intel.com>
To: Tetsuo Handa <penguin-kernel@i-love.sakura.ne.jp>,
	Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Jens Axboe <axboe@kernel.dk>,
	linux-block@vger.kernel.org, Petr Vorel <pvorel@suse.cz>,
	Pavel Tatashin <pasha.tatashin@soleen.com>,
	Tyler Hicks <tyhicks@linux.microsoft.com>,
	Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH] loop: reintroduce global lock for safe loop_validate_file() traversal
Date: Tue, 6 Jul 2021 07:35:59 -0700	[thread overview]
Message-ID: <fdd3e7bb-4ab6-2a37-a03a-56e088b32db3@linux.intel.com> (raw)
In-Reply-To: <258f1892-bbbe-67e2-ead9-3287a3d7578b@i-love.sakura.ne.jp>

On 7/3/2021 10:42 PM, Tetsuo Handa wrote:
> 
> It is not clear why the size of old and new image files need to be the same.

filesystems have a heck of a time dealing with suddenly a smaller disk ;)

note that the commit in question predates the ability for filesystems to grow into larger spaces
or most of hotplug.

so it's quite possible that today we can allow switching to a larger file just fine

      parent reply	other threads:[~2021-07-06 14:36 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-02 15:30 [PATCH] loop: reintroduce global lock for safe loop_validate_file() traversal Tetsuo Handa
2021-07-02 17:28 ` Tetsuo Handa
2021-07-06  5:46   ` Christoph Hellwig
2021-07-06 11:19     ` [PATCH v2] " Tetsuo Handa
2021-07-06 14:40       ` [PATCH v3] " Tetsuo Handa
2021-07-19 13:34         ` Tetsuo Handa
2021-07-23 16:19         ` Jens Axboe
2021-07-24  6:57           ` Christoph Hellwig
2021-07-04  5:42 ` [PATCH] " Tetsuo Handa
2021-07-06  5:43   ` Christoph Hellwig
2021-07-06 14:35   ` Arjan van de Ven [this message]

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