linux-kernel - [PATCH 0/2] block: avoid to drop & re-add partitions if partitions aren't changed

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Message-Id: <20210205021708.1498711-1-ming.lei@redhat.com>
Date:   Fri,  5 Feb 2021 10:17:06 +0800
From:   Ming Lei <ming.lei@...hat.com>
To:     Jens Axboe <axboe@...nel.dk>
Cc:     Christoph Hellwig <hch@....de>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, Ming Lei <ming.lei@...hat.com>,
        "Ewan D . Milne" <emilne@...hat.com>
Subject: [PATCH 0/2] block: avoid to drop & re-add partitions if partitions aren't changed

Hi Guys,

The two patches changes block ioctl(BLKRRPART) for avoiding drop &
re-add partitions if partitions state isn't changed. The current
behavior confuses userspace because partitions can disappear anytime
when ioctl(BLKRRPART).

Ming Lei (2):
  block: move partitions check code into single helper
  block: avoid to drop & re-add partitions if partitions aren't changed

 block/genhd.c            |   2 +
 block/partitions/check.h |   2 +
 block/partitions/core.c  | 101 ++++++++++++++++++++++++++++++++-------
 fs/block_dev.c           |  28 +++++++++--
 include/linux/genhd.h    |   4 ++
 5 files changed, 118 insertions(+), 19 deletions(-)

Cc: Ewan D. Milne <emilne@...hat.com>
-- 
2.29.2