Merge "mm: treat indirectly reclaimable memory as available in MemAvailable"

	available += global_page_state(NR_SLAB_RECLAIMABLE) -

		     min(global_page_state(NR_SLAB_RECLAIMABLE) / 2, wmark_low);

	/*

	 * Part of the kernel memory, which can be released under memory

	 * pressure.

	 */

	available += global_node_page_state(NR_INDIRECTLY_RECLAIMABLE_BYTES) >>

		PAGE_SHIFT;

	if (available < 0)

		available = 0;

	return available;