linux-kernel - Re: [PATCH] cifs: set backing_dev_info on new S

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Message-ID: <20100929231730.GA6921@infradead.org>
Date:	Wed, 29 Sep 2010 19:17:30 -0400
From:	Christoph Hellwig <hch@...radead.org>
To:	Jeff Layton <jlayton@...hat.com>
Cc:	smfrench@...il.com, linux-fsdevel@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-cifs@...r.kernel.org,
	stable@...nel.org
Subject: Re: [PATCH] cifs: set backing_dev_info on new S_ISREG inodes

On Wed, Sep 29, 2010 at 09:49:54AM -0400, Jeff Layton wrote:
> Testing on very recent kernel (2.6.36-rc6) made this warning pop:
> 
>     WARNING: at fs/fs-writeback.c:87 inode_to_bdi+0x65/0x70()
>     Hardware name:
>     Dirtiable inode bdi default != sb bdi cifs
> 
> ...the following patch fixes it and seems to be the obviously correct
> thing to do for cifs.

See my patch in the btrfs/default_backing_dev_info thread for the real
fix for the underlying issue.  But your patch won't harm either way.

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