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-rw-r--r--include/uapi/linux/btrfs.h6
1 files changed, 5 insertions, 1 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index 24f6848ad78e..9b82e01c191d 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -250,6 +250,9 @@ struct btrfs_ioctl_dev_info_args {
/* Request information about checksum type and size */
#define BTRFS_FS_INFO_FLAG_CSUM_INFO (1 << 0)
+/* Request information about filesystem generation */
+#define BTRFS_FS_INFO_FLAG_GENERATION (1 << 1)
+
struct btrfs_ioctl_fs_info_args {
__u64 max_id; /* out */
__u64 num_devices; /* out */
@@ -261,7 +264,8 @@ struct btrfs_ioctl_fs_info_args {
__u16 csum_type; /* out */
__u16 csum_size; /* out */
__u64 flags; /* in/out */
- __u8 reserved[968]; /* pad to 1k */
+ __u64 generation; /* out */
+ __u8 reserved[960]; /* pad to 1k */
};
/*