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. See Documentation/00-INDEX for a list of what is contained in each file. 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.
Guoqing Jiang
authored
To support add disk under grow mode, we need to resize all the bitmaps of each node before reshape, so that we can ensure all nodes have the same view of the bitmap of the clustered raid. So after the master node resized the bitmap, it broadcast a message to other slave nodes, and it checks the size of each bitmap are same or not by compare pages. We can only continue the reshaping after all nodes update the bitmap to the same size (by checking the pages), otherwise revert bitmap size to previous value. The resize_bitmaps interface and BITMAP_RESIZE message are introduced in md-cluster.c for the purpose. Reviewed-by:NeilBrown <neilb@suse.com> Signed-off-by:
Guoqing Jiang <gqjiang@suse.com> Signed-off-by:
Shaohua Li <shli@fb.com>
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