linux-kernel - [PATCH v3 0/3] followups to debug_pagealloc improvements through page

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Date:   Mon,  7 Oct 2019 11:18:05 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        kasan-dev@...glegroups.com, Qian Cai <cai@....pw>,
        "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Matthew Wilcox <willy@...radead.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Michal Hocko <mhocko@...nel.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        "Kirill A. Shutemov" <kirill@...temov.name>,
        Walter Wu <walter-zh.wu@...iatek.com>
Subject: [PATCH v3 0/3] followups to debug_pagealloc improvements through page_owner

Changes since v2 [3]:

- Qian Cai suggested that the extra boot option and page_ext ops is unnecessary
  for a debugging option, unless somebody really complains about the overhead,
  with numbers. So patch 2 is greatly simplified.

These are followups to [1] which made it to Linus meanwhile. Patches 1 and 3
are based on Kirill's review, patch 2 on KASAN request [2]. It would be nice
if all of this made it to 5.4 with [1] already there (or at least Patch 1).

[1] https://lore.kernel.org/linux-mm/20190820131828.22684-1-vbabka@suse.cz/
[2] https://lore.kernel.org/linux-arm-kernel/20190911083921.4158-1-walter-zh.wu@mediatek.com/
[3] https://lore.kernel.org/linux-mm/20190930122916.14969-1-vbabka@suse.cz/

Vlastimil Babka (3):
  mm, page_owner: fix off-by-one error in __set_page_owner_handle()
  mm, page_owner: decouple freeing stack trace from debug_pagealloc
  mm, page_owner: rename flag indicating that page is allocated

 Documentation/dev-tools/kasan.rst |  3 ++
 include/linux/page_ext.h          | 10 +++++-
 mm/page_ext.c                     | 23 +++++--------
 mm/page_owner.c                   | 55 +++++++++++--------------------
 4 files changed, 41 insertions(+), 50 deletions(-)

-- 
2.23.0