From: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Date: Tue, 7 Jan 2014 09:25:18 +0000 (+0800)
Subject: Btrfs: fix wrong send_in_progress accounting
X-Git-Tag: v3.14-rc1~29^2~51
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=896c14f97f700aec6565154f2451605d7c5ce3ed;p=pandora-kernel.git

Btrfs: fix wrong send_in_progress accounting

Steps to reproduce:
 # mkfs.btrfs -f /dev/sda8
 # mount /dev/sda8 /mnt
 # btrfs sub snapshot -r /mnt /mnt/snap1
 # btrfs sub snapshot -r /mnt /mnt/snap2
 # btrfs send /mnt/snap1 -p /mnt/snap2 -f /mnt/1
 # dmesg

The problem is that we will sort clone roots(include @send_root), it
might push @send_root before thus @send_root's @send_in_progress will
be decreased twice.

Cc: David Sterba <dsterba@suse.cz>
Signed-off-by: Wang Shilong <wangsl.fnst@cn.fujitsu.com>
Signed-off-by: Josef Bacik <jbacik@fb.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

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