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a2b0b205d1
We got issue as follows: [home]# fsck.ext4 -fn ram0yb e2fsck 1.45.6 (20-Mar-2020) Pass 1: Checking inodes, blocks, and sizes Pass 2: Checking directory structure Symlink /p3/d14/d1a/l3d (inode #3494) is invalid. Clear? no Entry 'l3d' in /p3/d14/d1a (3383) has an incorrect filetype (was 7, should be 0). Fix? no As the symlink file size does not match the file content. If the writeback of the symlink data block failed, ext4_finish_bio() handles the end of IO. However this function fails to mark the buffer with BH_write_io_error and so when unmount does journal checkpoint it cannot detect the writeback error and will cleanup the journal. Thus we've lost the correct data in the journal area. To solve this issue, mark the buffer as BH_write_io_error in ext4_finish_bio(). Cc: stable@kernel.org Signed-off-by: Ye Bin <yebin10@huawei.com> Reviewed-by: Jan Kara <jack@suse.cz> Link: https://lore.kernel.org/r/20220321144438.201685-1-yebin10@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu> |
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Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.