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Ye Bin bf4ba04f01 ext4: fix ext4_error_err save negative errno into superblock commit `6810fad956` upstream. Fix As write_mmp_block() so that it returns -EIO instead of 1, so that the correct error gets saved into the superblock. Cc: stable@kernel.org Fixes: `54d3adbc29` ("ext4: save all error info in save_error_info() and drop ext4_set_errno()") Reported-by: Liu Zhi Qiang <liuzhiqiang26@huawei.com> Signed-off-by: Ye Bin <yebin10@huawei.com> Reviewed-by: Andreas Dilger <adilger@dilger.ca> Link: https://lore.kernel.org/r/20210406025331.148343-1-yebin10@huawei.com Signed-off-by: Theodore Ts'o <tytso@mit.edu> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		History 2021-05-11 14:47:38 +02:00
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README

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.