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[73.69.118.222]) by smtp.gmail.com with ESMTPSA id r21sm4802727qtj.80.2020.09.04.08.14.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 04 Sep 2020 08:14:49 -0700 (PDT) From: Pavel Tatashin To: linux-kernel@vger.kernel.org, akpm@linux-foundation.org, mhocko@suse.com, linux-mm@kvack.org, pasha.tatashin@soleen.com, osalvador@suse.de, richard.weiyang@gmail.com, david@redhat.com, vbabka@suse.cz, rientjes@google.com Subject: [PATCH v3 0/2] drain pcp outside of page isolation Date: Fri, 4 Sep 2020 11:14:46 -0400 Message-Id: <20200904151448.100489-1-pasha.tatashin@soleen.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 X-Rspamd-Queue-Id: A34EF18086584 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam04 Content-Transfer-Encoding: quoted-printable X-Bogosity: Ham, tests=bogofilter, spamicity=0.046940, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: Moved drain_all_pages() from start_isolate_page_range() to users. This makes it more efficient, symmetric, and solves the race condition. This is a proposal that I described in Version 1 thread, otherwise no cha= nges to patch 1. Version 1: https://lore.kernel.org/lkml/20200901124615.137200-1-pasha.tatashin@solee= n.com Version 2: https://lore.kernel.org/lkml/20200903140032.380431-1-pasha.tatashin@solee= n.com Pavel Tatashin (2): mm/memory_hotplug: drain per-cpu pages again during memory offline mm: drain per-cpu pages outside of isolate_migratepages_range mm/memory_hotplug.c | 1 + mm/page_alloc.c | 2 ++ mm/page_isolation.c | 32 ++++++++++++-------------------- 3 files changed, 15 insertions(+), 20 deletions(-) --=20 2.25.1