From:   Nico Pache <npache@redhat.com>
To:     linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        akpm@linux-foundation.org
Cc:     shakeelb@google.com, ktkhai@virtuozzo.com, shy828301@gmail.com,
        guro@fb.com, vbabka@suse.cz, vdavydov.dev@gmail.com,
        raquini@redhat.com, mhocko@suse.com, david@redhat.com
Subject: [PATCH v2 0/1] Dont allocate pages on a offline node
Date:   Tue,  7 Dec 2021 17:40:12 -0500
Message-Id: <20211207224013.880775-1-npache@redhat.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

Prevent page allocations from occuring on an offlined by adding a check
to confirm the node is online and if not, use the closest node. Some
further work is needed for my previous solution to be complete. This
will provide a fix to the problem while the more complete solution is
being worked on.

V2:
 * drop the first patch that will introduce a regression by adding a
   branch in the hotpath.
 * Remove the for_each_online_nodes introduced as that will require
   further work for memcg and hotplug to work correctly. Long term a
   rework will be needed to either allocate all pgdatas or update all
   memcgs when a new node is onlined.

Signed-off-by: Nico Pache <npache@redhat.com>

Nico Pache (1):
  mm/vmscan.c: Prevent allocating shrinker_info on offlined nodes

 mm/vmscan.c | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

-- 
2.33.1