From 66ef7d65c3fc6e5300b9359f1c6537efb23781bb Mon Sep 17 00:00:00 2001
From: David Sterba <dsterba@suse.cz>
Date: Tue, 17 Dec 2013 15:07:20 +0100
Subject: [PATCH] btrfs: check balance of send_in_progress

Warn if the balance goes below zero, which appears to be unlikely
though. Otherwise cleans up the code a bit.

Signed-off-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
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Reading git-format-patch failed