linux-kernel - [PATCH 0/3] [v2] Repair and clean up vm.zone_reclaim

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Date:   Wed, 01 Jul 2020 08:26:21 -0700
From:   Dave Hansen <dave.hansen@...ux.intel.com>
To:     linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, Dave Hansen <dave.hansen@...ux.intel.com>,
        ben.widawsky@...el.com, alex.shi@...ux.alibaba.com,
        dwagner@...e.de, tobin@...nel.org, cl@...ux.com,
        akpm@...ux-foundation.org, ying.huang@...el.com,
        dan.j.williams@...el.com, cai@....pw
Subject: [PATCH 0/3] [v2] Repair and clean up vm.zone_reclaim_mode sysctl ABI

A previous cleanup accidentally changed the vm.zone_reclaim_mode ABI.

This series restores the ABI and then reorganizes the code to make
the ABI more obvious.  Since the single-patch v1[1], I've:

 * Restored the RECLAIM_ZONE naming, comment and Documentation now
   that the implicit checks for it are known.
 * Move RECLAIM_* definitions to a uapi header
 * Add a node_reclaim_enabled() helper

 Documentation/admin-guide/sysctl/vm.rst |   10 +++++-----
 include/linux/swap.h                    |    7 +++++++
 include/uapi/linux/mempolicy.h          |    7 +++++++
 mm/khugepaged.c                         |    2 +-
 mm/page_alloc.c                         |    2 +-
 mm/vmscan.c                             |    3 ---
 6 files changed, 21 insertions(+), 10 deletions(-)

1. https://lore.kernel.org/linux-mm/20200626003459.D8E015CA@viggo.jf.intel.com/

Cc: Ben Widawsky <ben.widawsky@...el.com>
Cc: Alex Shi <alex.shi@...ux.alibaba.com>
Cc: Daniel Wagner <dwagner@...e.de>
Cc: "Tobin C. Harding" <tobin@...nel.org>
Cc: Christoph Lameter <cl@...ux.com>
Cc: Andrew Morton <akpm@...ux-foundation.org>
Cc: Huang Ying <ying.huang@...el.com>
Cc: Dan Williams <dan.j.williams@...el.com>
Cc: Qian Cai <cai@....pw>
Cc: Daniel Wagner <dwagner@...e.de>