btrfs: Document __etree_search

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The function has a lot of return values and specific conventions making
it cumbersome to understand what's returned. Have a go at documenting
its parameters and return values.

Reviewed-by: Johannes Thumshirn <jthumshirn@suse.de>
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Nikolay Borisov <nborisov@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>

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Nikolay Borisov 2019-06-05 14:50:04 +03:00 • committed by David Sterba

parent 1eaebb341d

commit 8666e638b0

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fs/btrfs/extent_io.c

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