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[ Upstream commit28fc4e9077] Because the set/clear SBI_IS_RESIZEFS flag not between any locks, In the following case: thread1 thread2 ->ioctl(resizefs) ->set RESIZEFS flag ->ioctl(resizefs) ... ->set RESIZEFS flag ->clear RESIZEFS flag ->resizefs stream # No RESIZEFS flag in the stream Also before freeze_super, the resizefs not started, we should not set the SBI_IS_RESIZEFS flag. So move the set/clear SBI_IS_RESIZEFS flag between the cp_mutex and gc_lock. Fixes:b4b10061ef("f2fs: refactor resize_fs to avoid meta updates in progress") Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5@huawei.com> Signed-off-by: Zhang Qilong <zhangqilong3@huawei.com> Reviewed-by: Chao Yu <chao@kernel.org> Signed-off-by: Jaegeuk Kim <jaegeuk@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.