104 static int ovl_real_fdget_meta(const struct file *file, struct fd *real,  in ovl_real_fdget_meta()  argument
111 	real->flags = 0;  in ovl_real_fdget_meta()
112 	real->file = file->private_data;  in ovl_real_fdget_meta()
128 	if (unlikely(file_inode(real->file) != d_inode(realpath.dentry))) {  in ovl_real_fdget_meta()
129 		real->flags = FDPUT_FPUT;  in ovl_real_fdget_meta()
130 		real->file = ovl_open_realfile(file, &realpath);  in ovl_real_fdget_meta()
132 		return PTR_ERR_OR_ZERO(real->file);  in ovl_real_fdget_meta()
136 	if (unlikely((file->f_flags ^ real->file->f_flags) & ~OVL_OPEN_FLAGS))  in ovl_real_fdget_meta()
137 		return ovl_change_flags(real->file, file->f_flags);  in ovl_real_fdget_meta()
142 static int ovl_real_fdget(const struct file *file, struct fd *real)  in ovl_real_fdget()  argument
145 		real->flags = 0;  in ovl_real_fdget()
146 		real->file = ovl_dir_real_file(file, false);  in ovl_real_fdget()
148 		return PTR_ERR_OR_ZERO(real->file);  in ovl_real_fdget()
151 	return ovl_real_fdget_meta(file, real, false);  in ovl_real_fdget()
196 	struct fd real;  in ovl_llseek()  local
212 	ret = ovl_real_fdget(file, &real);  in ovl_llseek()
224 	real.file->f_pos = file->f_pos;  in ovl_llseek()
227 	ret = vfs_llseek(real.file, offset, whence);  in ovl_llseek()
230 	file->f_pos = real.file->f_pos;  in ovl_llseek()
233 	fdput(real);  in ovl_llseek()
316 	struct fd real;  in ovl_read_iter()  local
323 	ret = ovl_real_fdget(file, &real);  in ovl_read_iter()
329 	    !(real.file->f_mode & FMODE_CAN_ODIRECT))  in ovl_read_iter()
334 		ret = vfs_iter_read(real.file, iter, &iocb->ki_pos,  in ovl_read_iter()
345 		kiocb_clone(&aio_req->iocb, iocb, get_file(real.file));  in ovl_read_iter()
348 		ret = vfs_iocb_iter_read(real.file, &aio_req->iocb, iter);  in ovl_read_iter()
357 	fdput(real);  in ovl_read_iter()
366 	struct fd real;  in ovl_write_iter()  local
381 	ret = ovl_real_fdget(file, &real);  in ovl_write_iter()
387 	    !(real.file->f_mode & FMODE_CAN_ODIRECT))  in ovl_write_iter()
401 		file_start_write(real.file);  in ovl_write_iter()
402 		ret = vfs_iter_write(real.file, iter, &iocb->ki_pos,  in ovl_write_iter()
404 		file_end_write(real.file);  in ovl_write_iter()
416 		kiocb_clone(&aio_req->iocb, iocb, get_file(real.file));  in ovl_write_iter()
421 		ret = vfs_iocb_iter_write(real.file, &aio_req->iocb, iter);  in ovl_write_iter()
429 	fdput(real);  in ovl_write_iter()
442 	struct fd real;  in ovl_splice_read()  local
445 	ret = ovl_real_fdget(in, &real);  in ovl_splice_read()
450 	ret = vfs_splice_read(real.file, ppos, pipe, len, flags);  in ovl_splice_read()
454 	fdput(real);  in ovl_splice_read()
469 	struct fd real;  in ovl_splice_write()  local
481 	ret = ovl_real_fdget(out, &real);  in ovl_splice_write()
486 	file_start_write(real.file);  in ovl_splice_write()
488 	ret = iter_file_splice_write(pipe, real.file, ppos, len, flags);  in ovl_splice_write()
490 	file_end_write(real.file);  in ovl_splice_write()
494 	fdput(real);  in ovl_splice_write()
504 	struct fd real;  in ovl_fsync()  local
512 	ret = ovl_real_fdget_meta(file, &real, !datasync);  in ovl_fsync()
517 	if (file_inode(real.file) == ovl_inode_upper(file_inode(file))) {  in ovl_fsync()
519 		ret = vfs_fsync_range(real.file, start, end, datasync);  in ovl_fsync()
523 	fdput(real);  in ovl_fsync()
553 	struct fd real;  in ovl_fallocate()  local
564 	ret = ovl_real_fdget(file, &real);  in ovl_fallocate()
569 	ret = vfs_fallocate(real.file, mode, offset, len);  in ovl_fallocate()
575 	fdput(real);  in ovl_fallocate()
585 	struct fd real;  in ovl_fadvise()  local
589 	ret = ovl_real_fdget(file, &real);  in ovl_fadvise()
594 	ret = vfs_fadvise(real.file, offset, len, advice);  in ovl_fadvise()
597 	fdput(real);  in ovl_fadvise()
705 	struct fd real;  in ovl_flush()  local
709 	err = ovl_real_fdget(file, &real);  in ovl_flush()
713 	if (real.file->f_op->flush) {  in ovl_flush()
715 		err = real.file->f_op->flush(real.file, id);  in ovl_flush()
718 	fdput(real);  in ovl_flush()