Re: [PATCH 0/3] BDI handling fixes

[Christoph Hellwig]

On Fri, Sep 17, 2010 at 12:44:08AM +0200, Jan Kara wrote:
> 
>   Hi,
> 
>   series of these three patches fixes the warning in __mark_inode_dirty()
> which happens when I do e.g. touch /dev/zero. The first two patches should
> be obvious enough and probably worth merging independently of the third
> patch. The third patch is upto a discussion whether we want to solve the
> problem that way or differently. Christoph, I know we spoke at LSF that
> inode_to_bdi() could be a per-sb method but the current version of the
> patch seems clean enough to me that we could maybe go even without the
> special callback?

Feel free to go with the simpler one.  But what I think really needs to
be changes is the no writeback flag - it's exactly the wrong way around.

Instead just add a flag to allow writeback for the block device and
fs-specific bdi structures.

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