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Date:   Wed, 30 Dec 2020 08:32:49 +0800
From:   Ming Lei <>
To:     Jens Axboe <>
Cc:, Christoph Hellwig <>,, Ming Lei <>
Subject: [PATCH 0/6] block: improvement on bioset & bvec allocation


All are bioset / bvec improvement, and most of them are quite

Ming Lei (6):
  block: manage bio slab cache by xarray
  block: don't pass BIOSET_NEED_BVECS for q->bio_split
  block: don't allocate inline bvecs if this bioset needn't bvecs
  block: set .bi_max_vecs as actual allocated vector number
  block: move three bvec helpers declaration into private helper
  bcache: don't pass BIOSET_NEED_BVECS for the 'bio_set' embedded in

 block/bio.c               | 116 ++++++++++++++++----------------------
 block/blk-core.c          |   2 +-
 block/blk.h               |   4 ++
 drivers/md/bcache/super.c |   2 +-
 include/linux/bio.h       |   4 +-
 5 files changed, 57 insertions(+), 71 deletions(-)


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