From 7333bd02dcb7cefa91eb94efb8e7578ec764145c Mon Sep 17 00:00:00 2001
From: Anand Jain <anand.jain@oracle.com>
Date: Tue, 20 Nov 2018 16:12:57 +0800
Patch-mainline: v5.0-rc1
Git-commit: 7333bd02dcb7cefa91eb94efb8e7578ec764145c
References: bsc#1174354
Subject: [PATCH] btrfs: balance: print to system log when balance ends or is
 paused

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

Signed-off-by: Anand Jain <anand.jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
---
 fs/btrfs/volumes.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -3989,6 +3989,14 @@ int btrfs_balance(struct btrfs_balance_c
 	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 (bctl->sys.flags & BTRFS_BALANCE_ARGS_CONVERT) {