Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67;
Subject: [PATCH v5 0/4] Address issues slowing persistent memory
 initialization
From:   Alexander Duyck <alexander.h.duyck@linux.intel.com>
To:     linux-mm@kvack.org, akpm@linux-foundation.org,
        linux-kernel@vger.kernel.org, linux-nvdimm@lists.01.org
Cc:     pavel.tatashin@microsoft.com, mhocko@suse.com,
        dave.jiang@intel.com, dave.hansen@intel.com, jglisse@redhat.com,
        rppt@linux.vnet.ibm.com, dan.j.williams@intel.com,
        logang@deltatee.com, mingo@kernel.org,
        kirill.shutemov@linux.intel.com
Date:   Tue, 25 Sep 2018 13:18:08 -0700
Message-ID: <20180925200551.3576.18755.stgit@localhost.localdomain>
User-Agent: StGit/0.17.1-dirty
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: 7bit
Sender: linux-kernel-owner@vger.kernel.org
Precedence: bulk

This patch set is meant to be a v5 of my earlier submission with the same
title[1].

The main changes from the previous version are that I have added a new
patch to address an issue that had disabled deferred memory init on my
system due to recent config changes related to CONFIG_NO_BOOTMEM. In
addition I dropped the original patches 4 and 5 from the previous set as
that is going to need to be a separate set of patches.

The main thing this patch set achieves is that it allows us to initialize
each node worth of persistent memory independently. As a result we reduce
page init time by about 2 minutes because instead of taking 30 to 40 seconds
per node and going through each node one at a time, we process all 4 nodes
in parallel in the case of a 12TB persistent memory setup spread evenly over
4 nodes.

[1]: https://lkml.org/lkml/2018/9/21/4
---

Alexander Duyck (4):
      mm: Remove now defunct NO_BOOTMEM from depends list for deferred init
      mm: Provide kernel parameter to allow disabling page init poisoning
      mm: Create non-atomic version of SetPageReserved for init use
      mm: Defer ZONE_DEVICE page initialization to the point where we init pgmap


 Documentation/admin-guide/kernel-parameters.txt |   12 +++
 arch/csky/Kconfig                               |    1 
 include/linux/mm.h                              |    2 
 include/linux/page-flags.h                      |    9 ++
 kernel/memremap.c                               |   24 ++---
 mm/Kconfig                                      |    1 
 mm/debug.c                                      |   46 ++++++++++
 mm/hmm.c                                        |   12 ++-
 mm/memblock.c                                   |    5 -
 mm/page_alloc.c                                 |  101 ++++++++++++++++++++++-
 mm/sparse.c                                     |    4 -
 11 files changed, 184 insertions(+), 33 deletions(-)

--