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commitc8870379a2upstream. If there are multiple arrays in system and one mddevice is marked with MD_DELETED and md_seq_next() is called in the middle of removal then it _get()s proper device but it may _put() deleted one. As a result, active counter may never be zeroed for mddevice and it cannot be removed. Put the device which has been _get with previous md_seq_next() call. Cc: stable@vger.kernel.org Fixes:12a6caf273("md: only delete entries from all_mddevs when the disk is freed") Reported-by: AceLan Kao <acelan@gmail.com> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=217798 Cc: Yu Kuai <yukuai3@huawei.com> Signed-off-by: Mariusz Tkaczyk <mariusz.tkaczyk@linux.intel.com> Signed-off-by: Song Liu <song@kernel.org> Link: https://lore.kernel.org/r/20230914152416.10819-1-mariusz.tkaczyk@linux.intel.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.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.