linux-ext4 - Re: freeze

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Message-ID: <CAD6i1fKRjwaGmOyT9-1=N0zBhXMHkc-vtCj=jKNL+fYpwdqt9A@mail.gmail.com>
Date:	Tue, 9 Oct 2012 10:43:27 +0530
From:	Prashant Shah <pshah.mumbai@...il.com>
To:	Eric Sandeen <sandeen@...hat.com>
Cc:	linux-ext4@...r.kernel.org
Subject: Re: freeze_bdev hangs

Hi,

>> Anyway, did you try the suggestions I offered to track down your original
>> question about the freeze deadlock?
>
> I am not facing any deadlocks on 2.6.18 but was facing it on 3.x.
> freeze_bdev() and thaw_bdev() work correctly on 2.6.18. I will try it
> again on 3.x and confirm.
>

I tested it on 3.x and freeze_bdev() / thaw_bdev() work correctly. It
turns out I was doing something wrong related to sleeping/locks in the
custom make_request_fn() that caused it to freeze.

> Regards.
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