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fd7fb634d6
This enum is the interface exposed to developers. Although we have a detailed comment explaining the whole idea of space flushing at the beginning of space-info.c, the exposed enum interface doesn't have any comment. Some corner cases, like BTRFS_RESERVE_FLUSH_ALL and BTRFS_RESERVE_FLUSH_ALL_STEAL can be interrupted by fatal signals, are not explained at all. So add some simple comments for these enums as a quick reference. Signed-off-by: Qu Wenruo <wqu@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.