109 static int ovl_real_fdget_meta(const struct file *file, struct fd *real,  in ovl_real_fdget_meta()  argument
115 	real->flags = 0;  in ovl_real_fdget_meta()
116 	real->file = file->private_data;  in ovl_real_fdget_meta()
124 	if (unlikely(file_inode(real->file) != realinode)) {  in ovl_real_fdget_meta()
125 		real->flags = FDPUT_FPUT;  in ovl_real_fdget_meta()
126 		real->file = ovl_open_realfile(file, realinode);  in ovl_real_fdget_meta()
128 		return PTR_ERR_OR_ZERO(real->file);  in ovl_real_fdget_meta()
132 	if (unlikely((file->f_flags ^ real->file->f_flags) & ~OVL_OPEN_FLAGS))  in ovl_real_fdget_meta()
133 		return ovl_change_flags(real->file, file->f_flags);  in ovl_real_fdget_meta()
138 static int ovl_real_fdget(const struct file *file, struct fd *real)  in ovl_real_fdget()  argument
141 		real->flags = 0;  in ovl_real_fdget()
142 		real->file = ovl_dir_real_file(file, false);  in ovl_real_fdget()
144 		return PTR_ERR_OR_ZERO(real->file);  in ovl_real_fdget()
147 	return ovl_real_fdget_meta(file, real, false);  in ovl_real_fdget()
181 	struct fd real;  in ovl_llseek()  local
197 	ret = ovl_real_fdget(file, &real);  in ovl_llseek()
209 	real.file->f_pos = file->f_pos;  in ovl_llseek()
212 	ret = vfs_llseek(real.file, offset, whence);  in ovl_llseek()
215 	file->f_pos = real.file->f_pos;  in ovl_llseek()
218 	fdput(real);  in ovl_llseek()
301 	struct fd real;  in ovl_read_iter()  local
308 	ret = ovl_real_fdget(file, &real);  in ovl_read_iter()
314 	    (!real.file->f_mapping->a_ops ||  in ovl_read_iter()
315 	     !real.file->f_mapping->a_ops->direct_IO))  in ovl_read_iter()
320 		ret = vfs_iter_read(real.file, iter, &iocb->ki_pos,  in ovl_read_iter()
330 		aio_req->fd = real;  in ovl_read_iter()
331 		real.flags = 0;  in ovl_read_iter()
333 		kiocb_clone(&aio_req->iocb, iocb, real.file);  in ovl_read_iter()
336 		ret = vfs_iocb_iter_read(real.file, &aio_req->iocb, iter);  in ovl_read_iter()
345 	fdput(real);  in ovl_read_iter()
354 	struct fd real;  in ovl_write_iter()  local
369 	ret = ovl_real_fdget(file, &real);  in ovl_write_iter()
375 	    (!real.file->f_mapping->a_ops ||  in ovl_write_iter()
376 	     !real.file->f_mapping->a_ops->direct_IO))  in ovl_write_iter()
384 		file_start_write(real.file);  in ovl_write_iter()
385 		ret = vfs_iter_write(real.file, iter, &iocb->ki_pos,  in ovl_write_iter()
387 		file_end_write(real.file);  in ovl_write_iter()
398 		file_start_write(real.file);  in ovl_write_iter()
400 		__sb_writers_release(file_inode(real.file)->i_sb,  in ovl_write_iter()
402 		aio_req->fd = real;  in ovl_write_iter()
403 		real.flags = 0;  in ovl_write_iter()
405 		kiocb_clone(&aio_req->iocb, iocb, real.file);  in ovl_write_iter()
409 		ret = vfs_iocb_iter_write(real.file, &aio_req->iocb, iter);  in ovl_write_iter()
417 	fdput(real);  in ovl_write_iter()
436 	struct fd real;  in ovl_splice_write()  local
449 	ret = ovl_real_fdget(out, &real);  in ovl_splice_write()
454 	file_start_write(real.file);  in ovl_splice_write()
456 	ret = iter_file_splice_write(pipe, real.file, ppos, len, flags);  in ovl_splice_write()
458 	file_end_write(real.file);  in ovl_splice_write()
462 	fdput(real);  in ovl_splice_write()
472 	struct fd real;  in ovl_fsync()  local
480 	ret = ovl_real_fdget_meta(file, &real, !datasync);  in ovl_fsync()
485 	if (file_inode(real.file) == ovl_inode_upper(file_inode(file))) {  in ovl_fsync()
487 		ret = vfs_fsync_range(real.file, start, end, datasync);  in ovl_fsync()
491 	fdput(real);  in ovl_fsync()
530 	struct fd real;  in ovl_fallocate()  local
534 	ret = ovl_real_fdget(file, &real);  in ovl_fallocate()
539 	ret = vfs_fallocate(real.file, mode, offset, len);  in ovl_fallocate()
545 	fdput(real);  in ovl_fallocate()
552 	struct fd real;  in ovl_fadvise()  local
556 	ret = ovl_real_fdget(file, &real);  in ovl_fadvise()
561 	ret = vfs_fadvise(real.file, offset, len, advice);  in ovl_fadvise()
564 	fdput(real);  in ovl_fadvise()
572 	struct fd real;  in ovl_real_ioctl()  local
575 	ret = ovl_real_fdget(file, &real);  in ovl_real_ioctl()
579 	ret = security_file_ioctl(real.file, cmd, arg);  in ovl_real_ioctl()
585 		ret = vfs_ioctl(real.file, cmd, arg);  in ovl_real_ioctl()
588 	fdput(real);  in ovl_real_ioctl()