From: Anand Jain <Anand.Jain@oracle.com>
Date: Wed, 13 Aug 2014 06:24:24 +0000 (+0800)
Subject: btrfs: rw_devices shouldn't be incremented for seed fs in btrfs_rm_dev_replace_srcdev()
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=b2efedca68c15bc6eab6cbe0756f90c3b8f23b8f;p=linux-beck.git

btrfs: rw_devices shouldn't be incremented for seed fs in btrfs_rm_dev_replace_srcdev()

seed fs devices don't participate as rw_device, so don't increment
rw_devices when the device being handled belongs to a seed fs.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 94a0d186de4c..8482396056ee 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -1832,7 +1832,8 @@ void btrfs_rm_dev_replace_srcdev(struct btrfs_fs_info *fs_info,
 	fs_devices->num_devices--;
 	if (srcdev->missing) {
 		fs_devices->missing_devices--;
-		fs_devices->rw_devices++;
+		if (!fs_devices->seeding)
+			fs_devices->rw_devices++;
 	}
 	if (srcdev->can_discard)
 		fs_devices->num_can_discard--;