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950575c023
While adding self tests for my space index change I was hitting a problem where the space indexed tree wasn't returning the expected ->max_extent_size. This is because we will skip searching any entry that doesn't have ->bytes >= the amount of bytes we want. However we'll still set the max_extent_size based on that entry. The problem is if we don't search the bitmap we won't have ->max_extent_size set properly, so we can't really trust it. This doesn't really result in a problem per-se, it can just result in us not finding contiguous area that may exist. Fix the max_extent_size helper to return ->bytes if ->max_extent_size isn't set, and add a big comment explaining why we're doing this. Signed-off-by: Josef Bacik <josef@toxicpanda.com> Signed-off-by: David Sterba <dsterba@suse.com>
Linux kernel
============
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