--- zzzz-none-000/linux-4.4.60/fs/proc/meminfo.c	2017-04-08 07:53:53.000000000 +0000
+++ scorpion-7490-727/linux-4.4.60/fs/proc/meminfo.c	2021-02-04 17:41:59.000000000 +0000
@@ -79,6 +79,13 @@
 	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_page_state(NR_INDIRECTLY_RECLAIMABLE_BYTES) >>
+		PAGE_SHIFT;
+
 	if (available < 0)
 		available = 0;