[0/4] block: fix partition use-after-free and optimization
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Message ID 20200109062109.2313-1-ming.lei@redhat.com
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  • block: fix partition use-after-free and optimization
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Ming Lei Jan. 9, 2020, 6:21 a.m. UTC
Hi,

The 1st patch fixes one use-after-free on cached last_lookup partition.

The other 3 patches optimizes partition uses in IO path.



Ming Lei (4):
  block: fix use-after-free on cached last_lookup partition
  block: only define 'nr_sects_seq' in hd_part for 32bit SMP
  block: re-organize fields of 'struct hd_part'
  block: don't hold part0's refcount in IO path

 block/blk-core.c          | 15 ++-------------
 block/genhd.c             |  7 +++++--
 block/partition-generic.c | 12 ++++++++++--
 include/linux/genhd.h     | 25 ++++++++++++++++++-------
 4 files changed, 35 insertions(+), 24 deletions(-)

Cc: Yufen Yu <yuyufen@huawei.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Hou Tao <houtao1@huawei.com>