sbitmap: remove swap_lock

	 * @cleared: word holding cleared bits

	 */

	unsigned long cleared ____cacheline_aligned_in_smp;

	/**

	 * @swap_lock: Held while swapping word <-> cleared

	 */

	spinlock_t swap_lock;

} ____cacheline_aligned_in_smp;

/**

static inline bool sbitmap_deferred_clear(struct sbitmap_word *map)

{

	unsigned long mask, val;

	bool ret = false;

	unsigned long flags;

	spin_lock_irqsave(&map->swap_lock, flags);

	if (!map->cleared)

		goto out_unlock;

	if (!READ_ONCE(map->cleared))

		return false;

	/*

	 * First get a stable cleared mask, setting the old mask to 0.

		val = map->word;

	} while (cmpxchg(&map->word, val, val & ~mask) != val);

	ret = true;

out_unlock:

	spin_unlock_irqrestore(&map->swap_lock, flags);

	return ret;

	return true;

}

int sbitmap_init_node(struct sbitmap *sb, unsigned int depth, int shift,

	for (i = 0; i < sb->map_nr; i++) {

		sb->map[i].depth = min(depth, bits_per_word);

		depth -= sb->map[i].depth;

		spin_lock_init(&sb->map[i].swap_lock);

	}

	return 0;

}