| Message ID | 20180305133743.12746-3-guro@fb.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
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 >
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;
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(+)