Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
From:   Zhang Yi <yi.zhang@huaweicloud.com>
To:     linux-ext4@vger.kernel.org
Cc:     tytso@mit.edu, adilger.kernel@dilger.ca, jack@suse.cz,
        yi.zhang@huawei.com, yi.zhang@huaweicloud.com, yukuai3@huawei.com
Subject: [PATCH v2 00/12] ext4,jbd2: cleanup journal load and initialization process
Date:   Thu, 10 Aug 2023 16:54:05 +0800
Message-Id: <20230810085417.1501293-1-yi.zhang@huaweicloud.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
Precedence: bulk

From: Zhang Yi <yi.zhang@huawei.com>

v1->v2:
 - Fix the changelog in patch 1 and 2.
 - Simplify the comments for local functions in patch 6.
 - Remove the incorrect zero fast_commit blocks check in patch 7.
 - Fix a UAF problem in patch 11.

Hello,

This patch set cleanup the journal load and initialization process
(discussed and suggested by Ted in [1]). Firstly, move reading of the
journal superblock from jbd2_journal_load() and jbd2_journal_wipe()
early to journal_init_common(), and completely drop the kludgy call of
journal_get_superblock() in jbd2_journal_check_used_features(). Then
cleanup the ext4_get_journal() and ext4_get_dev_journal(), making their
initialization process and error handling process more clear, and return
proper errno if some bad happens. Finally rename those two functions to
jbd2_open_{dev,inode}_journal. This patch set has passed
'kvm-xfstests -g auto'.

[1] https://lore.kernel.org/linux-ext4/20230617185057.GA343628@mit.edu/

Thanks,
Yi.

Zhang Yi (12):
  jbd2: move load_superblock() dependent functions
  jbd2: move load_superblock() into journal_init_common()
  jbd2: don't load superblock in jbd2_journal_check_used_features()
  jbd2: checking valid features early in journal_get_superblock()
  jbd2: open code jbd2_verify_csum_type() helper
  jbd2: cleanup load_superblock()
  jbd2: add fast_commit space check
  jbd2: cleanup journal_init_common()
  jbd2: drop useless error tag in jbd2_journal_wipe()
  jbd2: jbd2_journal_init_{dev,inode} return proper error return value
  ext4: cleanup ext4_get_dev_journal() and ext4_get_journal()
  ext4: ext4_get_{dev}_journal return proper error value

 fs/ext4/super.c    | 154 ++++++++-------
 fs/jbd2/journal.c  | 465 +++++++++++++++++++++------------------------
 fs/ocfs2/journal.c |   8 +-
 3 files changed, 299 insertions(+), 328 deletions(-)

-- 
2.34.3