/* *  linux/fs/sysv/file.c * *  minix/file.c *  Copyright (C) 1991, 1992  Linus Torvalds * *  coh/file.c *  Copyright (C) 1993  Pascal Haible, Bruno Haible * *  sysv/file.c *  Copyright (C) 1993  Bruno Haible * *  SystemV/Coherent regular file handling primitives */ #include "sysv.h" /* * We have mostly NULLs here: the current defaults are OK for * the coh filesystem. */const struct file_operations sysv_file_operations = {	.llseek		= generic_file_llseek,	.read		= do_sync_read,	.aio_read	= generic_file_aio_read,	.write		= do_sync_write,	.aio_write	= generic_file_aio_write,	.mmap		= generic_file_mmap,	.fsync		= generic_file_fsync,	.splice_read	= generic_file_splice_read,}; static int sysv_setattr(struct dentry *dentry, struct iattr *attr){	struct inode *inode = dentry->d_inode;	int error; 	error = inode_change_ok(inode, attr);	if (error)		return error; 	if ((attr->ia_valid & ATTR_SIZE) &&	    attr->ia_size != i_size_read(inode)) {		error = vmtruncate(inode, attr->ia_size);		if (error)			return error;	} 	setattr_copy(inode, attr);	mark_inode_dirty(inode);	return 0;} const struct inode_operations sysv_file_inode_operations = {	.truncate	= sysv_truncate,	.setattr	= sysv_setattr,	.getattr	= sysv_getattr,};