linux-kernel - [PATCH v2 0/3] on top of for-5.16/block

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Message-Id: <cover.1634115360.git.asml.silence@gmail.com>
Date:   Wed, 13 Oct 2021 09:57:10 +0100
From:   Pavel Begunkov <asml.silence@...il.com>
To:     Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Christoph Hellwig <hch@...radead.org>, asml.silence@...il.com
Subject: [PATCH v2 0/3] on top of for-5.16/block

./io_uring -d32 -s32 -c32 -b512 -p1 /dev/nullb0
~3.3 MIOPS vs 3.5 MIOPS, so gives around extra ~4-5%.

The main part is caching struct block_device + some inlining.

v2: without applied patches, merge previous 6/6 into the second patch
    get rid of helpers (Jens, Christoph)
    kill bdev_inode and move inode into bdev (Christoph)

Pavel Begunkov (3):
  block: cache bdev in struct file for raw bdev IO
  block: don't hide inode from block_device users
  blk-mq: optimise *end_request non-stat path

 block/bdev.c              | 44 ++++++++++-----------------------------
 block/blk-mq.c            | 18 +++++++---------
 block/fops.c              | 43 ++++++++++++++++----------------------
 include/linux/blk_types.h |  1 +
 include/linux/blkdev.h    |  8 +++++--
 5 files changed, 44 insertions(+), 70 deletions(-)

-- 
2.33.0