linux-kernel - Re: [PATCH] fs/block_dev.c: Remove WARN

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Date:	Mon, 22 Jun 2015 14:42:04 -0400
From:	Tejun Heo <tj@...nel.org>
To:	Vivek Goyal <vgoyal@...hat.com>
Cc:	Jens Axboe <axboe@...nel.dk>, Christoph Hellwig <hch@....de>,
	Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com,
	Andi Kleen <andi@...stfloor.org>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] fs/block_dev.c: Remove WARN_ON() when inode writeback
 fails

On Mon, Jun 22, 2015 at 02:41:18PM -0400, Vivek Goyal wrote:
> If a block device is hot removed and later last reference to devices
> is put, we try to writeback the dirty inode. But device is gone and
> that writeback fails.
> 
> Currently we do a WARN_ON() which does not seem to be the right thing.
> Convert it to a ratelimited kernel warning.
> 
> Reported-by: Andi Kleen <andi@...stfloor.org>
> Signed-off-by: Vivek Goyal <vgoyal@...hat.com>

Acked-by: Tejun Heo <tj@...nel.org>

Thanks.

-- 
tejun
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