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a8f6f619e4
Removes duplicated check when adding qgroup relations. btrfs_add_qgroup_relations function adds relations by calling add_relation_rb(). add_relation_rb() checks that member/parentid exists in current qgroup_tree. But it already checked before calling the function. It seems that we don't need to double check. Add new function __add_relation_rb() that adds relations with qgroup structures and makes old function use the new one. And it makes btrfs_add_qgroup_relation() function work without double checks by calling the new function. Signed-off-by: Sidong Yang <realwakka@gmail.com> Reviewed-by: David Sterba <dsterba@suse.com> [ add comments ] 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.