[LTP] [PATCH] make autoclear operation synchronous again

[Tetsuo Handa]

On 2022/01/05 15:02, Jan Stancek wrote:
> On Thu, Dec 30, 2021 at 07:52:34PM +0900, Tetsuo Handa wrote:
>> OK. Two patches shown below. Are these look reasonable?
>>
>>
>>
>>> From 1409a49181efcc474fbae2cf4e60cbc37adf34aa Mon Sep 17 00:00:00 2001
>> From: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
>> Date: Thu, 30 Dec 2021 18:41:05 +0900
>> Subject: [PATCH 1/2] loop: Revert "loop: make autoclear operation asynchronous"
>>
> 
> Thanks, the revert fixes failures we saw recently in LTP tests,
> which do mount/umount in close succession:
> 
> # for i in `seq 1 2`;do mount -t iso9660 -o loop /root/isofs.iso /mnt/isofs; umount /mnt/isofs/; done
> mount: /mnt/isofs: WARNING: source write-protected, mounted read-only.
> mount: /mnt/isofs: wrong fs type, bad option, bad superblock on /dev/loop0, missing codepage or helper program, or other error.
> umount: /mnt/isofs/: not mounted.
> 

I'm waiting for Jens to come back to
https://lkml.kernel.org/r/c205dcd2-db55-a35c-e2ef-20193b5ac0da@i-love.sakura.ne.jp .