BTRFS_INO_LOOKUP_USER_PATH_MAX 2407 fs/btrfs/ioctl.c 		ptr = &args->path[BTRFS_INO_LOOKUP_USER_PATH_MAX - 1];
BTRFS_INO_LOOKUP_USER_PATH_MAX  438 include/uapi/linux/btrfs.h 	char path[BTRFS_INO_LOOKUP_USER_PATH_MAX];