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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.

jeff.liu committed 13 years ago

Commit a8bfd4a1 parent 867ab662 files · +44 −0Browse files

Showing the changes to include/uapi/linux (1 of 2 files). Show all

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include/uapi/linux/btrfs.h+2−0
@@ -504,6 +504,8 @@ struct btrfs_ioctl_send_args { · 503 unmodified lines
504 struct btrfs_ioctl_qgroup_limit_args)504 struct btrfs_ioctl_qgroup_limit_args)
505#define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \505#define BTRFS_IOC_GET_FSLABEL _IOR(BTRFS_IOCTL_MAGIC, 49, \
506 char[BTRFS_LABEL_SIZE])506 char[BTRFS_LABEL_SIZE])
507#define BTRFS_IOC_SET_FSLABEL _IOW(BTRFS_IOCTL_MAGIC, 50, \
508 char[BTRFS_LABEL_SIZE])
507#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \509#define BTRFS_IOC_GET_DEV_STATS _IOWR(BTRFS_IOCTL_MAGIC, 52, \
508 struct btrfs_ioctl_get_dev_stats)510 struct btrfs_ioctl_get_dev_stats)
509#define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \511#define BTRFS_IOC_DEV_REPLACE _IOWR(BTRFS_IOCTL_MAGIC, 53, \