Merge "zsmalloc: use bit_spin_lock"

static inline int trypin_tag(unsigned long handle)

{

	unsigned long *ptr = (unsigned long *)handle;

	return !test_and_set_bit_lock(HANDLE_PIN_BIT, ptr);

	return bit_spin_trylock(HANDLE_PIN_BIT, (unsigned long *)handle);

}

static void pin_tag(unsigned long handle)

{

	while (!trypin_tag(handle));

	bit_spin_lock(HANDLE_PIN_BIT, (unsigned long *)handle);

}

static void unpin_tag(unsigned long handle)

{

	unsigned long *ptr = (unsigned long *)handle;

	clear_bit_unlock(HANDLE_PIN_BIT, ptr);

	bit_spin_unlock(HANDLE_PIN_BIT, (unsigned long *)handle);

}

static void reset_page(struct page *page)