e59d18b45d
btrfs_find_orphan_roots has this weird thing where it looks up the root in cache to see if it is there before just reading the root. But the read it uses just reads the root, it doesn't do any of the init work, we do that by hand here. But this is unnecessary, all we really want is to see if the root still exists and add it to the dead roots list to be cleaned up, otherwise we delete the orphan item. Fix this by just using btrfs_get_fs_root directly with check_ref set to false so we get the orphan root items. Then we just handle in cache and out of cache roots the same, add them to the dead roots list and carry on. Reviewed-by: Nikolay Borisov <nborisov@suse.com> Signed-off-by: Josef Bacik <josef@toxicpanda.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.