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[ Upstream commite24ed04389] memalloc_noio_save() is called for the first mddev_suspend(), and repeated mddev_suspend() only increase 'suspended'. However, memalloc_noio_restore() is also called for the first mddev_resume(), which means that memory reclaim will be enabled before the last mddev_resume() is called, while the array is still suspended. Fix this problem by restore 'noio_flag' for the last mddev_resume(). Fixes:78f57ef9d5("md: use memalloc scope APIs in mddev_suspend()/mddev_resume()") Signed-off-by: Yu Kuai <yukuai3@huawei.com> Link: https://lore.kernel.org/r/20230628012931.88911-3-yukuai1@huaweicloud.com Signed-off-by: Song Liu <song@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
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.