[PATCH 4/4] UBI: Fastmap: Ensure that only one fastmap work is scheduled

[Bityutskiy, Artem]

On Tue, 2014-09-30 at 00:20 +0200, Richard Weinberger wrote:
> +       spin_lock(&ubi->wl_lock);
> +       ubi->fm_work_scheduled = 0;
> +       spin_unlock(&ubi->wl_lock);

Andrew Morton once said me that if I am protecting an integer change
like this with a spinlock, I have a problem in my locking design. He was
right for my particular case.

Integer is changes atomic. The only other thing spinlock adds are the
barriers.

-- 
Best Regards,
Artem Bityutskiy
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