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0d8ed0e9bf
When add one disk to array, the md_reap_sync_thread is responsible to activate the spare and set In_sync flag for the new member in spare_active(). But if raid1 has one member disk A, and disk B is added to the array. Then we offline A before all the datas are synchronized from A to B, obviously B doesn't have the latest data as A, but B is still marked with In_sync flag. So let's not call spare_active under the condition, otherwise B is still showed with 'U' state which is not correct. Signed-off-by: Guoqing Jiang <guoqing.jiang@cloud.ionos.com> Signed-off-by: Song Liu <songliubraving@fb.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.