From 1d4c08e0a60be356134d0c466744d0d4e16ebab0 Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Fri, 2 Jan 2015 19:36:14 +0100
Subject: [PATCH] btrfs: expand btrfs_find_item if found_key is NULL

If the found_key is NULL, then btrfs_find_item becomes a verbose wrapper
for simple btrfs_search_slot.

After we've removed all such callers, passing a NULL key is not valid
anymore.

Signed-off-by: David Sterba <dsterba@suse.cz>
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