linux-ext4 - [PATCH 0/3] ext4: fix two issue about bdev_try_to_free

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Message-ID: <20210408113618.1033785-1-yi.zhang@huawei.com>
Date:   Thu, 8 Apr 2021 19:36:15 +0800
From:   Zhang Yi <yi.zhang@...wei.com>
To:     <linux-ext4@...r.kernel.org>
CC:     <tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.cz>,
        <yi.zhang@...wei.com>, <yukuai3@...wei.com>
Subject: [PATCH 0/3] ext4: fix two issue about bdev_try_to_free_page()

Hi,

This first patch fix a potential filesystem inconsistency problem and
other two fix a use after free problem.

Zhang Yi (3):
  jbd2: protect buffers release with j_checkpoint_mutex
  jbd2: do not free buffers in jbd2_journal_try_to_free_buffers()
  ext4: add rcu to prevent use after free when umount filesystem

 fs/ext4/inode.c       |  6 ++++--
 fs/ext4/super.c       | 41 +++++++++++++++++++++++++++++------------
 fs/jbd2/journal.c     | 30 +++++++++++++++++++++++++++---
 fs/jbd2/transaction.c | 20 ++++++++++----------
 include/linux/jbd2.h  | 11 ++++++++++-
 5 files changed, 80 insertions(+), 28 deletions(-)

-- 
2.25.4