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f9cfe7e7f9
Commitcf1b6d4441("md: simplify md_seq_ops") introduce following regressions: 1) If list all_mddevs is emptly, personalities and unused devices won't be showed to user anymore. 2) If seq_file buffer overflowed from md_seq_show(), then md_seq_start() will be called again, hence personalities will be showed to user again. 3) If seq_file buffer overflowed from md_seq_stop(), seq_read_iter() doesn't handle this, hence unused devices won't be showed to user. Fix above problems by printing personalities and unused devices in md_seq_show(). Fixes:cf1b6d4441("md: simplify md_seq_ops") Cc: stable@vger.kernel.org # v6.7+ Signed-off-by: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20240109133957.2975272-1-yukuai1@huaweicloud.com
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.