5 * Copyright (C) 1991, 1992 Linus Torvalds
8 * Copyright (C) 1993 Pascal Haible, Bruno Haible
11 * Copyright (C) 1993 Bruno Haible
13 * SystemV/Coherent regular file handling primitives
19 * We have mostly NULLs here: the current defaults are OK for
22 const struct file_operations sysv_file_operations = {
23 .llseek = generic_file_llseek,
24 .read = generic_file_read,
25 .write = generic_file_write,
26 .mmap = generic_file_mmap,
27 .fsync = sysv_sync_file,
28 .sendfile = generic_file_sendfile,
31 struct inode_operations sysv_file_inode_operations = {
32 .truncate = sysv_truncate,
33 .getattr = sysv_getattr,
36 int sysv_sync_file(struct file * file, struct dentry *dentry, int datasync)
38 struct inode *inode = dentry->d_inode;
41 err = sync_mapping_buffers(inode->i_mapping);
42 if (!(inode->i_state & I_DIRTY))
44 if (datasync && !(inode->i_state & I_DIRTY_DATASYNC))
47 err |= sysv_sync_inode(inode);
48 return err ? -EIO : 0;