linux-kernel - [PATCH v2 0/2] guarantee natural alignment for kmalloc()

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Message-Id: <20190826111627.7505-1-vbabka@suse.cz>
Date:   Mon, 26 Aug 2019 13:16:25 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     Andrew Morton <akpm@...ux-foundation.org>, linux-mm@...ck.org
Cc:     linux-kernel@...r.kernel.org, Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Ming Lei <ming.lei@...hat.com>,
        Dave Chinner <david@...morbit.com>,
        Matthew Wilcox <willy@...radead.org>,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        Christoph Hellwig <hch@....de>, linux-xfs@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-block@...r.kernel.org,
        James Bottomley <James.Bottomley@...senPartnership.com>,
        linux-btrfs@...r.kernel.org, Vlastimil Babka <vbabka@...e.cz>
Subject: [PATCH v2 0/2] guarantee natural alignment for kmalloc()

After a while, here's v2 of the series, also discussed at LSF/MM [1].
I've updated the documentation bits and expanded changelog. Also measured
effect on SLOB, and found it to be within noise. That required first adding
some accounting for SLOB, which I believe is useful in general, so that
became Patch 1. All other details are in Patch 2 changelog.

[1] https://lwn.net/Articles/787740/

Vlastimil Babka (2):
  mm, sl[ou]b: improve memory accounting
  mm, sl[aou]b: guarantee natural alignment for kmalloc(power-of-two)

 Documentation/core-api/memory-allocation.rst |  4 ++
 include/linux/slab.h                         |  4 ++
 mm/slab_common.c                             | 19 +++++-
 mm/slob.c                                    | 62 +++++++++++++++-----
 mm/slub.c                                    | 14 ++++-
 5 files changed, 82 insertions(+), 21 deletions(-)

-- 
2.22.1