Re: [patch 2/6] mm: bdi: export BDI attributes in sysfs

[Greg KH]

On Tue, Jan 29, 2008 at 04:49:02PM +0100, Miklos Szeredi wrote:
> From: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> 
> Provide a place in sysfs (/sys/class/bdi) for the backing_dev_info
> object.  This allows us to see and set the various BDI specific
> variables.
> 
> In particular this properly exposes the read-ahead window for all
> relevant users and /sys/block/<block>/queue/read_ahead_kb should be
> deprecated.
> 
> With patient help from Kay Sievers and Greg KH
> 
> [mszeredi@xxxxxxx]
> 
>  - split off NFS and FUSE changes into separate patches
>  - document new sysfs attributes under Documentation/ABI
>  - do bdi_class_init as a core_initcall, otherwise the "default" BDI
>    won't be initialized
>  - remove bdi_init_fmt macro, it's not used very much
> 
> Signed-off-by: Peter Zijlstra <a.p.zijlstra@xxxxxxxxx>
> CC: Kay Sievers <kay.sievers@xxxxxxxx>
> CC: Greg KH <greg@xxxxxxxxx>

Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxx>

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