From a8bfd4abea3da0e28f215e2a2b8c2f1ca27ebe80 Mon Sep 17 00:00:00 2001 From: "jeff.liu" Date: Sat, 5 Jan 2013 02:48:08 +0000 Subject: Btrfs: set/change the label of a mounted file system With this new ioctl(2) BTRFS_IOC_SET_FSLABEL, we can set/change the label of a mounted file system. Signed-off-by: Jie Liu Signed-off-by: Anand Jain Reviewed-by: Miao Xie Reviewed-by: Goffredo Baroncelli Reviewed-by: David Sterba Reviewed-by: Goffredo Baroncelli Signed-off-by: Josef Bacik --- include/uapi/linux/btrfs.h | 2 ++ 1 file changed, 2 insertions(+) (limited to 'include/uapi') diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h index 51c0b335e0c..fa3a5f9338f 100644 --- a/include/uapi/linux/btrfs.h +++ b/include/uapi/linux/btrfs.h @@ -504,6 +504,8 @@ struct btrfs_ioctl_send_args { struct btrfs_ioctl_qgroup_limit_args) #define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \ char[BTRFS_LABEL_SIZE]) +#define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \ + char[BTRFS_LABEL_SIZE]) #define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \ struct btrfs_ioctl_get_dev_stats) #define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \ -- cgit v1.2.3