Commit 1f350f02 authored Apr 10, 2018 by Vijayanand Jitta

mm: treat indirectly reclaimable memory as available in MemAvailable



Adjust /proc/meminfo MemAvailable calculation by adding the amount of
indirectly reclaimable memory (rounded to the PAGE_SIZE).

This change is referenced from commit 034ebf65c3c2 ("mm: treat indirectly
reclaimable memory as available in MemAvailable") on upstream, as node
based vmstat global_node_page_state is not present, zone based vmstat
global_page_state is used instead.

Change-Id: I7303d0f8ccd5993c7234a5187430d418d49e5763
Signed-off-by: Vijayanand Jitta <vjitta@codeaurora.org>

parent 7e22f754

fs/proc/meminfo.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -79,6 +79,13 @@ static int meminfo_proc_show(struct seq_file m, void v)
		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;