1/* 2 * linux/fs/sysv/file.c 3 * 4 * minix/file.c 5 * Copyright (C) 1991, 1992 Linus Torvalds 6 * 7 * coh/file.c 8 * Copyright (C) 1993 Pascal Haible, Bruno Haible 9 * 10 * sysv/file.c 11 * Copyright (C) 1993 Bruno Haible 12 * 13 * SystemV/Coherent regular file handling primitives 14 */ 15 16#include <linux/fs.h> 17#include <linux/sysv_fs.h> 18 19/* 20 * We have mostly NULLs here: the current defaults are OK for 21 * the coh filesystem. 22 */ 23struct file_operations sysv_file_operations = { 24 llseek: generic_file_llseek, 25 read: generic_file_read, 26 write: generic_file_write, 27 mmap: generic_file_mmap, 28 fsync: sysv_sync_file, 29}; 30 31struct inode_operations sysv_file_inode_operations = { 32 truncate: sysv_truncate, 33}; 34 35int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync) 36{ 37 struct inode *inode = dentry->d_inode; 38 int err; 39 40 err = fsync_inode_buffers(inode); 41 err |= fsync_inode_data_buffers(inode); 42 if (!(inode->i_state & I_DIRTY)) 43 return err; 44 if (datasync && !(inode->i_state & I_DIRTY_DATASYNC)) 45 return err; 46 47 err |= sysv_sync_inode(inode); 48 return err ? -EIO : 0; 49} 50