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-rw-r--r--include/uapi/linux/btrfs.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/uapi/linux/btrfs.h b/include/uapi/linux/btrfs.h
index b4d69092fbdb..901a3c563f60 100644
--- a/include/uapi/linux/btrfs.h
+++ b/include/uapi/linux/btrfs.h
@@ -211,7 +211,8 @@ struct btrfs_balance_args {
__u64 flags;
- __u64 unused[8];
+ __u64 limit; /* limit number of processed chunks */
+ __u64 unused[7];
} __attribute__ ((__packed__));
/* report balance progress to userspace */