f2fs_flush_device  414 fs/f2fs/f2fs.h 						struct f2fs_flush_device)
f2fs_flush_device 2729 fs/f2fs/file.c 	struct f2fs_flush_device range;
f2fs_flush_device 2741 fs/f2fs/file.c 	if (copy_from_user(&range, (struct f2fs_flush_device __user *)arg,