According to the definition in kernel space, this one should be changed.
Signed-off-by: WANG Cong <wangcong@xxxxxxxxx>
---
diff --git a/btrfsctl.c b/btrfsctl.c
index e049799..5ff7f69 100644
--- a/btrfsctl.c
+++ b/btrfsctl.c
@@ -39,7 +39,7 @@
#define BLKGETSIZE64 0
#define BTRFS_IOC_SNAP_CREATE 0
#define BTRFS_VOL_NAME_MAX 255
-struct btrfs_ioctl_vol_args { char name[BTRFS_VOL_NAME_MAX]; };
+struct btrfs_ioctl_vol_args { char name[BTRFS_VOL_NAME_MAX+1]; int fd;};
static inline int ioctl(int fd, int define, void *arg) { return 0; }
#endif
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