tag	line	file	source code
f_op	154	fs/minix/truncate.c	filp->f_op = &minix_file_operations;
f_op	161	fs/open.c	f->f_op = NULL;
f_op	26	fs/read_write.c	if (file->f_op && file->f_op->lseek)
f_op	27	fs/read_write.c	return file->f_op->lseek(file->f_inode,file,offset,origin);
f_op	58	fs/read_write.c	if (file->f_op && file->f_op->read)
f_op	59	fs/read_write.c	return file->f_op->read(inode,file,buf,count);
f_op	84	fs/read_write.c	if (file->f_op && file->f_op->write)
f_op	85	fs/read_write.c	return file->f_op->write(inode,file,buf,count);
f_op	113	include/linux/fs.h	struct file_operations * f_op;