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8a36e408d4
[PROBLEM] qgroup create/remove code is currently returning EINVAL when the user tries to create a qgroup on a subvolume without quota enabled. EINVAL is already being used for too many error scenarios so that is hard to depict what is the problem. [FIX] Currently scrub and balance code return -ENOTCONN when the user tries to cancel/pause and no scrub or balance is currently running for the desired subvolume. Do the same here by returning -ENOTCONN when a user tries to create/delete/assing/list a qgroup on a subvolume without quota enabled. Reviewed-by: Qu Wenruo <wqu@suse.com> Signed-off-by: Marcos Paulo de Souza <mpdesouza@suse.com> Reviewed-by: David Sterba <dsterba@suse.com> Signed-off-by: David Sterba <dsterba@suse.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.