[PATCH v6 3/3] btrfs: balance: add kernel log for end or paused

[Anand Jain <anand.jain@oracle.com>]

Add a kernel log when the balance ends, either for cancel or completed
or if it is paused.

Signed-off-by: Anand Jain <anand.jain@oracle.com>
---
v5->v6: Quite soul. nothing.
v4->v5: nothing.
v3->v4: nothing.
v2->v3: nothing.
v1->v2: Moved from 2/3 to 3/3
 fs/btrfs/volumes.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index eb18739f19ef..0684f14ff70d 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -4060,6 +4060,13 @@ int btrfs_balance(struct btrfs_fs_info *fs_info,
 	ret = __btrfs_balance(fs_info);
 
 	mutex_lock(&fs_info->balance_mutex);
+	if (ret == -ECANCELED && atomic_read(&fs_info->balance_pause_req))
+		btrfs_info(fs_info, "balance: paused");
+	else if (ret == -ECANCELED && atomic_read(&fs_info->balance_cancel_req))
+		btrfs_info(fs_info, "balance: canceled");
+	else
+		btrfs_info(fs_info, "balance: ended with status: %d", ret);
+
 	clear_bit(BTRFS_FS_BALANCE_RUNNING, &fs_info->flags);
 
 	if (bargs) {
-- 
1.8.3.1