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8c9e376b9d
Many personalities will handle IO error from daemon thread(like raid1d, raid10d, raid5d), and sb will require to be clean before hanlding these failed IO. However update sb can fail, for example array is broken by IO failure, or user config sysfs api array_state. This patch adds warning if updating sb failed first, in case this will be related to IO hang. Link: https://lore.kernel.org/linux-raid/20251117085557.770572-2-yukuai@fnnas.com Signed-off-by: Yu Kuai <yukuai@fnnas.com> Reviewed-by: Li Nan <linan122@huawei.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 reStructuredText 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.