Re: [RFC v4+ hot_track 16/19] btrfs: add hot tracking support

[David Sterba]

On Mon, Oct 29, 2012 at 12:30:58PM +0800, zwu.kernel@xxxxxxxxx wrote:
> From: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx>
> 
>   Introduce one new mount option '-o hot_track',
> and add its parsing support.
>   Its usage looks like:
>    mount -o hot_track
>    mount -o nouser,hot_track
>    mount -o nouser,hot_track,loop
>    mount -o hot_track,nouser
> 
> Signed-off-by: Zhi Yong Wu <wuzhy@xxxxxxxxxxxxxxxxxx>
Reviewed-by: David Sterba <dsterba@xxxxxxx>
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