linux-kernel - [PATCH v2 0/3] ext4: fix some ext4_lblk

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Message-ID: <20230724121059.11834-1-libaokun1@huawei.com>
Date:   Mon, 24 Jul 2023 20:10:56 +0800
From:   Baokun Li <libaokun1@...wei.com>
To:     <linux-ext4@...r.kernel.org>
CC:     <tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.cz>,
        <ritesh.list@...il.com>, <ojaswin@...ux.ibm.com>,
        <linux-kernel@...r.kernel.org>, <yi.zhang@...wei.com>,
        <yangerkun@...wei.com>, <yukuai3@...wei.com>,
        <libaokun1@...wei.com>
Subject: [PATCH v2 0/3] ext4: fix some ext4_lblk_t overflow issues

Changes since v1:
* Rename fex_end() and pa_end() to extent_logical_end() and pa_logical_end()
  to make the code more readable.
* Refactor the logic for adjusting the best extent in ext4_mb_new_inode_pa()
  to simplify the code and remove redundant parameter for helper function.
* Merged patch 4 to patch 1 as mainline commit 9d3de7ee192a fixed the issue.

Baokun Li (3):
  ext4: add two helper functions extent_logical_end() and pa_logical_end()
  ext4: fix BUG in ext4_mb_new_inode_pa() due to overflow
  ext4: avoid overlapping preallocations due to overflow

 fs/ext4/mballoc.c | 61 +++++++++++++++++++++--------------------------
 fs/ext4/mballoc.h | 14 +++++++++++
 2 files changed, 41 insertions(+), 34 deletions(-)

-- 
2.31.1