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SubjectRe: [PATCH 2/3] mm: add indirectly reclaimable memory to MemAvailable
Please, ignore this particular patch, it was sent by mistake.

On Mon, Mar 05, 2018 at 01:37:41PM +0000, Roman Gushchin wrote:
> This patch adjusts /proc/meminfo MemAvailable calculation
> by adding the amount of indirectly reclaimable memory
> (rounded to the PAGE_SIZE).
>
> Signed-off-by: Roman Gushchin <guro@fb.com>
> Cc: Andrew Morton <akpm@linux-foundation.org>
> Cc: Alexander Viro <viro@zeniv.linux.org.uk>
> Cc: Michal Hocko <mhocko@suse.com>
> Cc: Johannes Weiner <hannes@cmpxchg.org>
> Cc: linux-fsdevel@vger.kernel.org
> Cc: linux-kernel@vger.kernel.org
> Cc: linux-mm@kvack.org
> Cc: kernel-team@fb.com
> ---
> mm/page_alloc.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 2836bc9e0999..2247cda9e94e 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -4695,6 +4695,13 @@ long si_mem_available(void)
> min(global_node_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;
> --
> 2.14.3
>

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