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6422b4cd95
btrfs_realloc_node() is only used by the defrag code. Nowadays we have a defrag.c file, so move it, and its helper close_blocks(), into defrag.c. During the move also do a few minor cosmetic changes: 1) Change the return value of close_blocks() from int to bool; 2) Use SZ_32K instead of 32768 at close_blocks(); 3) Make some variables const in btrfs_realloc_node(), 'blocksize' and 'end_slot'; 4) Get rid of 'parent_nritems' variable, in both places where it was used it could be replaced by calling btrfs_header_nritems(parent); 5) Change the type of a couple variables from int to bool; 6) Rename variable 'err' to 'ret', as that's the most common name we use to track the return value of a function; 7) Move some variables from the top scope to the scope of the for loop where they are used. Signed-off-by: Filipe Manana <fdmanana@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.