From: Anand Jain <Anand.Jain@oracle.com>
Date: Mon, 30 Jun 2014 16:58:56 +0000 (+0800)
Subject: btrfs: device add must be sysloged
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=43d207616886da1d93623ac40bd1d922a79e0d1b;p=openwrt%2Fstaging%2Fblogic.git

btrfs: device add must be sysloged

when we add a new disk to the mounted btrfs we don't record it
as of now, disk add is a critical change of btrfs configuration,
it must be recorded in the syslog to help offline investigations
of customer problems when reported.

Signed-off-by: Anand Jain <Anand.Jain@oracle.com>
Reviewed-by: David Sterba <dsterba@suse.cz>
Signed-off-by: Chris Mason <clm@fb.com>
---

diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 8eecfcce56ed..aa73884025b3 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -2633,6 +2633,9 @@ static long btrfs_ioctl_add_dev(struct btrfs_root *root, void __user *arg)
 	vol_args->name[BTRFS_PATH_NAME_MAX] = '\0';
 	ret = btrfs_init_new_device(root, vol_args->name);
 
+	if (!ret)
+		btrfs_info(root->fs_info, "disk added %s",vol_args->name);
+
 	kfree(vol_args);
 out:
 	mutex_unlock(&root->fs_info->volume_mutex);