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3a3178c7f7
This is only used in ctree.c, with the exception of zero'ing out extent buffers we're getting ready to write out. In theory we shouldn't have an extent buffer with 0 items that we're writing out, however I'd rather be safe than sorry so open code it in extent_io.c, and then copy the helper into ctree.c. This will make it easier to sync accessors.[ch] into btrfs-progs, as this requires a helper that isn't defined in accessors.h. Signed-off-by: Josef Bacik <josef@toxicpanda.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.