On Sat, Nov 18, 2017 at 07:02:16AM +0800, Yang Shi wrote:
> Preempt counter APIs have been split out, currently, hardirq.h just
> includes irq_enter/exit APIs which are not used by btrfs at all.
> 
> So, remove the unused hardirq.h.
> 
> Signed-off-by: Yang Shi <[email protected]>
> Cc: Chris Mason <[email protected]>
> Cc: Josef Bacik <[email protected]>
> Cc: David Sterba <[email protected]>
> Cc: [email protected]

Acked-by: David Sterba <[email protected]>

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