linux-kernel - [PATCH v2 0/2] Address issues slowing memory init

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Message-ID: <20180905211041.3286.19083.stgit@localhost.localdomain>
Date:   Wed, 05 Sep 2018 14:13:22 -0700
From:   Alexander Duyck <alexander.duyck@...il.com>
To:     linux-mm@...ck.org, linux-kernel@...r.kernel.org
Cc:     alexander.h.duyck@...el.com, pavel.tatashin@...rosoft.com,
        mhocko@...e.com, dave.hansen@...el.com, akpm@...ux-foundation.org,
        mingo@...nel.org, kirill.shutemov@...ux.intel.com
Subject: [PATCH v2 0/2] Address issues slowing memory init

This patch series is meant to address some issues I consider to be
low-hanging fruit in regards to memory initialization optimization.

With these two changes I am able to cut the hot-plug memory initialization
times in my environment in half.

v2: Added comments about why we are using __SetPageReserved
    Added new config and updated approach used for page init poisoning

---

Alexander Duyck (2):
      mm: Move page struct poisoning to CONFIG_DEBUG_VM_PAGE_INIT_POISON
      mm: Create non-atomic version of SetPageReserved for init use


 include/linux/page-flags.h |    9 +++++++++
 lib/Kconfig.debug          |   14 ++++++++++++++
 mm/memblock.c              |    5 ++---
 mm/page_alloc.c            |   13 +++++++++++--
 mm/sparse.c                |    4 +---
 5 files changed, 37 insertions(+), 8 deletions(-)

--